Manual smartphone charger. Travel charger for mobile phones. camping charging dynamo
Monster among hand charges. Why is she attractive? This is power. According to the manufacturer, it is very powerful and capable of delivering up to 30 watts of electrical energy. Igor Beletsky presented a review, and, by his admission, he does not even know how to squeeze 30 watts out of such a small box measuring only 10 x 6 centimeters. Yes, it just fits in your hand. However, looking ahead, let's say that he managed to squeeze even 40 watts out of it.
There are many similar single-handle chargers for sale on the Internet. But all of them have a power, as a rule, does not exceed 10 watts. It comes with a very serious set of wires. As they say, for all occasions. Well, for example, the most basic wire with a built-in voltage regulator. Pay attention to the positions from 3 volts to 28 volts. With the switch, you can smoothly set any position and charge your devices. According to the multimeter check, everything is clear, even 0.5 volts in stock. Anything you need! Bought it in this Chinese store. Name: 30W 0-28V Hand Dynamo Hand Emergency Generator with DC Converter.
The wire branches for another 4, where it is, USB, where you connect your phones, tablets, Power banks. Anything that requires 5 volts to charge. Another mini usb and two plugs. One fits under the laptop, the second goes to the wire, which ends with two crocodiles. This is apparently to be able to charge the batteries. Another posting, which is attached to the charger and also ends with two crocodiles. They have stickers - red (plus) and black (minus). It's a rarity that you can't find everywhere these days.
Pay attention to how the wire is connected to the charger. First, each has a metal plug. It can only enter in one single position. There is a special groove, combining which you can insert charging into the plug. The nut is screwed on and clamps the plug. The wire itself enters the plug and is additionally clamped at the input with small bolts.
The charger itself is made in a metal style. It is assembled from 2 metal halves, between them there is a rubber gasket, which indicates that it is waterproof. The device is held in the hand by a leash, which is tightened and holds the hand tightly. A slight inconvenience is that it will not work to completely cover the device with your fingers, as they will interfere with the rotation of the handle. But you get used to it easily. Ergonomics are rectangular, all edges are rounded, so it is quite comfortable to hold, in principle.
Charging Power Check
For accurate measurement, we will use an electronic wattmeter and a variable resistance. Let's start with the phone. We connect it and set the stabilizer to 5 volts. We start the rotation and the phone instantly “lights up” and depicts charging. We pass to the wattmeter with resistance. Let's see how many watts we squeeze out. We charge at the same pace and observe the wattmeter reading. Voltage 5 volts, power 5 watts. Enough to charge any phone. Current 1 amp. This is an excellent result.
We connect the tablet. On the stabilizer the same 5 volts. We start spinning. 65%. Written: comes from the network. Which indicates that the current exceeds 0.5 amperes. Which is what we need. The tablet will require from 5 to 10 watts. Let's see how much effort it will take to produce such power. Here they are, the desired 10 watts. How much can you turn the handle at this pace? Doing this is pretty easy. Supposedly, for a well-trained person, you can rotate the handle for half an hour. The author of the video himself, in his opinion, will last 10 minutes.
For a laptop, there is no question of full nutrition, only recharging. In fact, this device is suitable for all gadgets. The author is most interested in whether he can squeeze the claimed 30 watts out of the device. So now we move on to the most important experiment.
Crash test for squeezing the maximum power out of the charger
Peak power reached 40 watts! The resistance heated up in a matter of seconds. It was impossible to take it in hand. This suggests that this device is capable of delivering not only 30, but also 4o watts. It all depends on whether there will be a corresponding physical effort at the input. Even without being distinguished by great physical strength, the author of the review managed to show this. For people who go hiking and are more physically developed, this device is a godsend. They will be able to charge with it and the phone, tablet, recharge the laptop. In case of complete isolation from civilization, this is a very necessary thing. The author of the reviews is pleasantly surprised that the manufacturer did not deceive, honestly wrote the declared power. It turned out that you can even surpass it. The quality is appropriate. Perhaps it was copied from a military model or made with an eye on military orders. In its weight and size characteristics, it has no competitor.
It is interesting to see what is inside the black box. There is a transmission gear mechanism. And what is he? Plastic gears or metal? It is very important. Most interesting, what kind of generator is here? Cheaper models have conventional collector motors. For example, those that are on printers. Given the power, it must be impressive in size. And here it is only 4 centimeters. He just won't fit in here. Therefore, presumably, there is some kind of tricky generator here. Perhaps even on neodymium magnets. A separate video with an overview of charging in the analysis. All details will be shown.
Or camping with friends - often ends with the fact that on the second day we find ourselves without mobile communications and the Internet. The most common cause is a dead battery. Finding an outlet, for example, in the forest is not so easy. In this case, we left a list of 10 stand-alone chargers that will help you become (virtually) independent of the mains.
BioLite CampStove
BioLite CampStove is a thermoelectric device powered by charcoal. It converts heat into energy and stores it in storage. The compact size and autonomy allow you to use the gadget during hiking and long outdoor recreation far from civilization. At the same time, with BioLite CampStove, you can simultaneously charge your phone (or any other USB device) and cook food. Firewood, branches, cones, bark are suitable as fuel for the miracle stove - in general, everything that is found in the forest.
Price: from 6 160 rubles.
PowerTrekk
The principle of operation of the PowerTrekk portable charger is similar to how the new model works. It is based on a chemical fuel cell that, in contact with water, generates an electric current. To charge, fill in plain water, insert a cartridge (fuel cell with hydrogen gas) - and you can charge your devices anywhere, regardless of the electrical network. Three cartridges are included with the device, and a set of 27 new elements will cost 3.5 thousand rubles. The capacity of one cartridge is enough for one full charge of the smartphone, but if there is no cartridge at hand, the device can be used as a simple portable LiPo battery powered by the mains.
Price: from 5 550 rubles.
power pot
A pot, or rather a charging pot, PowerPot is made of refractory and durable anodized aluminum and is suitable for use on any open source of heat, whether it be a fire, a gas burner or an electric stove. A wire with a sensor (also heat-resistant and fire-resistant) stretches from the kettle, which is securely connected to your device via USB. The pot works on the basis of the temperature difference between the bottom of the appliance, made of special materials, and the heat source itself. From the movement of electrons between them, electricity is generated. It is worth noting that the higher the temperature difference, the more efficient the recharging is, so it is better to pour cold water. So you can cook soup and charge your devices at the same time.
Price: from 5 900 rubles.
Solar Sunflower
The gadget in the form of a flower Solar Sunflower can not only decorate the entrance to your tent, but on a fine day it will quickly and environmentally charge your smartphone. The device does not charge the phone directly, but through the drive, which can greatly speed up this process. The futuristic sunflower has four solar panels that power a 2500 mAh battery. The output power of the device is 5 volts.
Price: from 3,013 rubles.
Energy Backpack
The American company TYLT has developed the Energi Backpack with a built-in 10400 mAh battery that can charge up to 4 smartphones or one tablet. All this energy is enclosed in a capacious backpack with a volume of 24 liters. The accessory is suitable for those who prefer reliable and proven methods of storing electricity and do not dare to go on a trip with a promising novelty on solar batteries or hydrogen cells. The backpack itself weighs about 2 kilograms, but it has a laptop compartment, roomy external and internal pockets to hide wires, headphones and various gadgets.
Price: 7 990 rub.
powertravel
solarmonkey adventurer
PowerTravel Solarmonkey Adventurer - another eco-friendly and autonomous device for recharging electronic devices. It works, like the Sunflower, on solar batteries, only its design is more rigorous and mobile. This device was recognized as the best in its class for outdoor activities and sports at ISPO in 2013. Solarmonkey is two solar panels in a lightweight and durable case that folds compactly when not needed. The device is shockproof and waterproof, and it comes with attachments for carrying, for example, on a backpack. It is important that this charging turns off automatically when your phone or other device is 100% charged, and precious energy is not wasted, but stored in the drive.
Price: from 4 350 rubles.
Array Solar Laptop Charger
A large backpack with a solar battery is able to charge a smartphone, camera and even a laptop. The pocket with three 3.4W solar panels is completely removable and can be mounted in any other place convenient for you, for example, on the trunk of a bicycle or a tent awning. At the same time, the panels are absolutely waterproof and shockproof. According to the developers, 1 hour in the active sun will provide up to 30 minutes of battery life for a laptop, and it will fully charge a mobile phone in 1.5 hours. At the same time, the universal 16000 mAh battery that comes with the kit can be recharged via the same USB cable from a wall outlet or car cigarette lighter.
Price: 16 450 rubles.
Tigra Bike CHARGE
power pack
If you like long bike rides, then portable waterproof bike battery for recharging mobile devices on the road - what you need. Moreover, it has a convenient cylindrical shape, thanks to which the battery can be fixed on the frame using special fasteners. The battery capacity of 2600 mAh will provide you with at least one more full charge of the phone battery,
and you can recharge it at a convenient opportunity through
USB port.
Price: 2 999 rubles.
Waka Waka
A few years ago, a simple Waka Waka lamp appeared on sale, which was recharged by sunlight. Probably, the sales of the flashlight were not very successful, and the creators decided to finalize it by adding the functionality of a charger to it. Now, in 8 hours in the sun, Waka Waka Power fully recharges the battery of a smartphone with a 2200 mAh battery via a USB port. The same 8 hours is enough to charge the built-in flashlight for 40 hours of operation.
Sent by:
A review article for those who like to break something. ;)
In this case, a mechanical charger for cell phones is being disassembled.
I am sure that many of us have repeatedly encountered the problem of charging the battery of a mobile phone during any trips. Often, going on the road, we simply forget to look at the display of the phone and make sure that its battery is charged. And only on the way it turns out that it is impossible to accept an important call, because the phone is about to turn off. Some of us just have such long trips that even a fully charged phone battery has time to run out, and, by coincidence, there is no access to AC power.
Accordingly, there is also no opportunity to use a regular charger from the phone set. But you never know what other situations can be in life. But most of us are so accustomed to mobile phones, or rather to the constant availability of telephone communications, that without it they feel very uncomfortable, even if this connection is not needed at all for some period of time. Well, if in such situations at the disposal of the "victim" there is always, for example, the on-board network of the car. Then you can use the car charger, which today is available in abundance on the shelves of the respective stores.
But what to do if you need to recharge the battery of a mobile phone in other conditions, for example, on a camping trip, where there are no familiar and at the same time available energy sources suitable for powering the phone? Fortunately, today there are already devices that can help us out in such extreme situations. I think it is not difficult to guess that it is one of these devices supplied to Russia under the Neodrive brand that will be discussed in this material.
As you can see in the photo above, the packaging of the charger in question does not represent anything outstanding or original. Before us is the most ordinary blister with a piece of cardboard enclosed in it, the design of the front side of which I don’t even want to evaluate. However, it seems to me that the end user will be completely indifferent to this design, because packaging is not required for the normal operation of the device. Only the information printed on the reverse side of the cardboard enclosed in the blister may be required, but I will return to it, but for now we will continue to inspect the kit. So, in addition to cardboard, the following is also packed in a blister:
1. Manual dynamo
2. Extension cable
3. Five adapters to power the most popular phone models
This is the kit the user receives by purchasing the item in question Charger(by the way, it is multifunctional). Is it sufficient? At first glance, yes. However, after thinking carefully and evaluating the conditions for which this device is intended, we can come to the conclusion that for the greatest comfort of the user, the kit could be somewhat richer. What is missing in it? In my opinion, one very significant detail, but I will tell you about what exactly, for my reasons, is missing a little later, after the presented device and its operation have been considered in detail.
Dynamo machine …
So, we have before us the main component of the charger in question, a hand-operated dynamo, that is, a source of energy so necessary in field conditions. The unit is not large, as it is equipped with a folding handle. Its maximum dimensions when folded are 58x47x32 mm. Such an important parameter from the point of view of transportation as weight is also insignificant and comparable to the weight of modern mobile phones(about 85 grams).
The body of the device has a curved shape with rounded ends. Apparently, this is done so that during operation it is conveniently located in the user's hand. The material that this case is made of is blue translucent smoked plastic, while the folding handle is made of black plastic. In addition to the handle on the body of the unit, there is also a connector for connecting the extension cable included in the charger in question, a red LED, and an attached wrist strap, which can be really useful in field conditions. But this strap, in my opinion, is somewhat small (circumference - 214 mm).
The insides of the dynamo can be seen in the photo above. However, in good light, they are also partially visible through the translucent body of the device. The main component here is a generator, the shaft of which is connected to the black handle of the device by means of a gear train. In addition to the generator and gear gear, a small printed circuit board is also hidden under the case, on which, although somewhat primitive, but quite a workable electrical circuit of the voltage stabilizer is mounted. In general, the design is reliable enough for operation in the field.
Theoretically, its only weak point is the gear train. So, when operating a dynamo, I recommend not to be too zealous when turning the handle. Otherwise, the plastic gears of the gear train may simply fail.
Cable and adapters…
The cable included with the charger is essentially nothing more than an extension cable (length 61.5 cm). In general, you can do without it at all, simply by plugging the adapter corresponding to the user's mobile phone directly into the dynamo socket. However, in this case, it may not be as convenient to operate the charger as when using a cable, since the mobile phone and the charger in question will be rigidly interconnected and will represent, as it were, a single structure. The reliability of this design leaves much to be desired, so users should be strongly advised to use an extension cable, plugging it between the dynamo and the mobile phone adapter respectively.
I think that the purpose of adapters for mobile phones is clear to everyone. In total, the kit of the charger in question comes with five adapters, with the help of which it is possible to connect this device to the most popular mobile phone models today. For unknown reasons, there is no information on which phone models these adapters are suitable for on the packaging of the charger. However, this information can be found on the supplier's website.
So, the kit includes adapters compatible with the following phone models: Nokia (models 8210, 8310, 8850, 3310, 3210, 5210, 6210, 6310, 6510, 6610, 7210, 7650, 2100, and others compatible with them), Ericsson (Sony Ericsson) (models T28, T39, T68, T20, R320, R380, A2618, T610, T630, and other compatible models), Motorola (models V998, V3688, V8088, StarTac, T189, cd928, p7689, v2088 , L2000, A6188, and others compatible with them), Siemens (models C25, S25, C35, C45, S45, A35, SL42, SL45, 6688, and others compatible with them), Alcatel (models OT310, OT511, OT512, OT525 , 715, and others compatible with them), Samsung (models A200, A300, A400, T100, T200, N620, and others compatible with them). As you can see, the charger in question turns out to be very versatile and will suit the vast majority of mobile phone users who may potentially need it.
And how does it work?
I think that the description of the individual components of the charger in question is quite enough to understand what it is. Now we can proceed to the description of practical experiments carried out on this device and evaluate it, so to speak, in action. So let's get started...
To bring the charger into working condition and connect it to a mobile phone, you need to perform four simple operations. Plug the extension cable into the dynamo socket. Plug the extension cable into an adapter suitable for connecting to a mobile phone whose battery needs to be recharged. Plug the adapter into the jack of this mobile phone. After that, you can open the folding handle of the dynamo and use the ready-to-use charger.
Using them is as easy as it gets. It is enough just to rotate the handle of the dynamo with a frequency sufficient for the charging process of the battery to be indicated on the screen of a rechargeable mobile phone. The information printed on the cardboard enclosed in the charger package says that it is enough to rotate the handle of the dynamo for three minutes at a frequency of 2-2.5 revolutions per second. After that, according to the manufacturer, the user will be provided with three to five minutes of mobile communication. Well, we connect the ready-to-work charger to the first mobile phone that came to hand (it turned out to be Nokia 8850) and check the manufacturer's promises.
It should be noted that the experiments were carried out with a mobile phone, the battery of which was naturally discharged when the phone was in a call waiting state. At the same time, one hour passed from the moment the phone was turned off due to battery discharge and until the start of the experiments.
By the way, even before the start of experiments with a mobile phone, for security purposes, one more statement from the manufacturer was checked. This refers to the output voltage of the dynamo. Measurements showed that the voltage at the output of this unit is 6.4 V, without load! Apparently, when stating that the output voltage is limited to 6 Volts, the manufacturer meant the operation of the device under load.
So, we rotate the dynamo handle and observe the phone display. Since the phone has lain for an hour, as mentioned above, after turning it off due to battery discharge, the charging progress indicator does not turn on immediately. It is quite natural that the longer the phone is left in the off state with a dead battery, the more the user will have to work before the recharging process begins.
Therefore, I would recommend, if possible, to start recharging immediately after turning off the phone. But this is just a recommendation and let's get back to the operation of the device. And it really works. As for the speed of rotation of the dynamo handle required for recharging, in the case of the Nokia 8850 mobile phone, 1.7 revolutions per second (approximately 100 revolutions per minute) was quite enough. But to fully power other phones, a slightly higher rotational speed may be required.
According to the manufacturer, the handle should be rotated at a frequency of 2-2.5 revolutions per second (120-150 revolutions per minute). Apparently, this statement is made with a "margin", which, in general, is not so bad. But the statement of the same manufacturer that three minutes of such recharging of the phone is enough for three or even five minutes of a telephone conversation, to put it mildly, is not correct. Judge for yourself - for the phone, this charger is just a power source, just like its standard AC adapter or, for example, a car charger. If you want, you can conduct an experiment yourself - connect the phone with a discharged battery to a regular network adapter, wait until the charging process indicator appears on the phone's display and then charge the battery for three minutes.
In the case of the tested phone, that is, the Nokia 8850, a three-minute recharge was enough for the phone to turn on, find the network, and make an attempt to establish a connection. To make an attempt means that the phone reported on which number it starts dialing, and immediately turned off, sometimes without even having time to report a complete discharge of the battery. Phones with high power consumption after a three-minute recharging can turn off almost immediately after turning on, even in the process of searching for a network.
In general, it all depends on the specific model of the mobile phone, but three minutes of turning the handle for normal subsequent operation of the phone is clearly not enough (except perhaps as a clock, and even then not for a long time). However, this is not yet a reason to put an end to the charger in question. Firstly, you can not limit yourself to three minutes of rotation of the dynamo handle, thereby extending the time for recharging the battery of a mobile phone. Secondly, for those who do not have time to wait, there is another option to make the phone function using the same charger in question.
This option is not as comfortable as a regular phone call with a charged battery, but in emergency cases it is quite suitable. The meaning of this option is that you can talk on the phone while the battery is charging. Of course, it will not be so easy to implement this without helpers, because when dialing a number, and even during a conversation, you will have to simultaneously hold the phone and rotate the dynamo handle. This procedure is much more convenient to do together, when one person holds a mobile phone and makes a call, and the other at this time holds the dynamo and rotates its handle. I think most will agree that this is not very comfortable.
In addition to this, the sound emitted by the dynamo during operation can also be quite disturbing during a telephone conversation. However, with all the shortcomings described, this option of using the charger should not be discarded, because, as I already wrote, in emergency situations it is quite suitable and most often much better than just a phone with a dead battery that cannot be used.
The next thing worth mentioning is the load on the handle of the dynamo while recharging the battery of a mobile phone. This load is not uniform!
It is easy to guess that it depends on the load on the dynamo. In other words, from the current consumed by the mobile phone at various times in the process of recharging the battery. This current can vary within fairly wide limits, and, consequently, the force required to rotate the handle can vary from very small to, let's say, tangible. No, nothing supernatural from the user of the charger, of course, will be required, but I think it was worth mentioning this behavior of the dynamo, at least so that the users would not be afraid, thinking that their charger is faulty.
As if completing the topic of recharging mobile phone batteries, I consider it necessary to inform you that the charger is designed specifically for recharging these same batteries. You should not try to carry out a full charge cycle with it! The main reason why this should not be done is because of the resource of the dynamo.
Describing its design, I mentioned that the gears of the gear train are made of plastic and, accordingly, they should not be overloaded with work. Also, during the operation of the dynamo, one should not apply too much effort when rotating the handle and significantly exceed the recommended frequency of its rotation. Increasing the handle speed will in no way affect the battery recharging process, but it can significantly reduce the life of the gears.
Describing the set of the device in question, I briefly mentioned that it is multifunctional. What is its versatility? And it lies in the fact that in addition to the function of an energy source, the dynamo machine included in the device kit can act not only as an energy source for recharging the battery of a mobile phone, but also autonomously as a regular flashlight. It is for these purposes that an LED is mounted in its case.
Using this flashlight is very easy. It is enough just to turn the handle of the dynamo, while leaving the connector for connecting the extension cable free. That is, simply do not connect anything to the dynamo. In this case, when the handle is turned, the LED will glow, and the device can act as a flashlight that does not require any batteries for its operation. Practical experiments have shown that for the full glow of the LED, it is enough to rotate the handle at a frequency of about one and a half revolutions per second (83-90 revolutions per minute), which fully corresponds to the statement of the device manufacturer printed on the package. In this case, no significant effort is required from the user - the handle rotates very easily, since the LED does not represent a serious load for the dynamo.
Rotating the handle of the unit in question with a higher frequency will not bring any improvements - the LED will not glow brighter, since the voltage supplying it is controlled by the dynamo voltage regulator (similar to the process of recharging mobile phone batteries). Everything seems to be simple and clear, but personally I still have one question for an answer, to which I think I will never wait. And it is not clear to me, from what such considerations did the developers of this device decide to use a red LED as a light source? In warehouses, surpluses of these particular LEDs were formed, and for this reason they were installed in a dynamo? Or maybe it's a flashlight for a camping photo lab? Why is it not mentioned anywhere then? In any case, considering this charger as a flashlight, we have to state with regret that the efficiency of the red LED is extremely low.
However, this should not be a tragedy either. I do not think that the flashlight function will be often in demand. If it is still very necessary, then you can recommend yourself to replace the LED used in the device. True, for this, the user will need at least elementary skills in working with a soldering iron.
What more?
Even at the very beginning of this material, I wondered - what is missing in the kit of the device in question? It seems that everything you need to recharge your mobile phone is available. There is a power source, a set of adapters for the most popular mobile phone models, and an extension cable that makes the device more comfortable to use. But, let's argue as follows - it's good if the user goes on the road alone with one single mobile phone. And if he is accompanied by someone like a wife (or husband, if the user is not male)? In this case, it may be necessary to recharge two mobile phones already and it is not at all necessary that they will be from the same manufacturer.
But, in this case, you can take on the road not one adapter, but two or more (if necessary). It seems that there are no problems, however, I want to note that so far the charger has been considered practically only from the point of view of its functioning. But what about transportation? I think it's not difficult to guess what I'm driving at, speaking of some insufficiency of the kit in question.
Yes, the dynamo does not take up much space, and, as I mentioned, it does not weigh much. An extension cable and any necessary number of adapters will not burden the user when traveling. But, if it is quite difficult to “lose” a dynamo in a travel bag, even with its small dimensions, then in fact it is possible to lose adapters for mobile phones. Due to their meager size, they can easily fall somewhere, and it will take a long time to find them.
So what is missing in the charger kit? That's right - some, for example, a rag bag-case similar to those that come with some models of miniature laptop mice. And after all, it seems to be a trifle, but how useful and out of place it would be! Having put all the components of the charger in such a bag, the user would not have to puzzle himself with any searches, while the bag would hardly have affected the price of the device in any significant way. Of course, you can make it yourself, but it would be much nicer if, in this case, the manufacturer of the charger took care of the user's convenience.
conclusions
Well, it would seem that not everything in the considered charger is ideal. However, despite this, I believe that it is quite successful and deserves attention. Of course, you can find other alternative solutions that perform the same functions as the considered charger. But, today, such an alternative will either be much more expensive, or more cumbersome and heavy, or will require voltage sources for its operation, which, as you know, have a limited supply of energy. This device is very compact, relatively light, and does not require anything other than minor user effort for its operation.
Of course, I would like to see in his kit a case for transportation and perhaps even more adapters for connecting to more different models of mobile phones. But, even in the form in which the considered charger can be purchased today, it is very attractive and can be very useful. So, potential buyers can be recommended to pay attention to it.
Do you want to make an urgent phone call, but the charge is at zero? There is nowhere to plug the charger, is the situation hopeless? Not at all - if you have a mechanical charger in your bag for cell phone. The device generates electricity using a dynamo with a handle. Turning the handle for two minutes charges the mobile phone for at least 1-4 minutes of talk time.
In addition to charging the phone, the gadget can also be used as a flashlight. The device is equipped with LEDs with two lighting modes. By rotating the crank for one minute, you can provide a bright flashlight for at least 30 minutes. The use of LEDs instead of light bulbs, high-quality connections and a water-resistant housing design guarantee a long life of the device.
Manual (mechanical) charging. Which mobile phones can be charged?
The phone charger is equipped with adapters that allow you to charge the following mobile phones:
- Nokia 6101 and 8210 series
- Samsung A288 series
- Sony Ericsson K750 series
In addition, charging can be connected to the following connectors
- Mini USB 5pin
- Micro USB.
Manual (mechanical) charging for phones. Specifications
- outgoing voltage - 4.5-6.5V
- outgoing current up to 400 mA
- built-in Ni-MH rechargeable battery 80 mAH allows at least 500 full recharges
- very bright (50000mCd) flashlight
- dimensions 140*54*52 mm
- net weight 0.18 kg
Manual (mechanical) charging for phones. Contents of delivery
- charger Energenie EG-PC-002 for mobile phones with manual drive and flashlight
- cable for Nokia phones
- 5 adapters for other phones
Let's consider each block separately. The mechanical converter converts vertically or horizontally supplied energy into torque. I took this device out of the toy, but there are a lot of such sets of gears in the DVD player, there are only two gears - one is horizontal with one-sided teeth, the other is round, I think the principle of operation is familiar to everyone. Next is the generator. it was taken from a tape recorder and is a conventional 9-volt motor. It is necessary to remove the motor cover and throw out the board with the stabilizer, which is soldered to the contacts of the motor. We insert a gear of a suitable caliber onto the motor shaft, and attach the motor to the mechanical converter using super glue.
The second part of the mechanical is the voltage converter. You can find a large number of such converters on our website, but I used this particular circuit. In the circuit, the transistor VT1 was replaced by KT816, and VT2 by KT817, but you can use any close parameters. Choke - a ferrite rod or ring, has 15 turns of wire with a diameter of 0.3 - 0.7 mm. Batteries I used two cans of nickel-cadmium batteries from a home phone. They are connected in series and give a voltage of 2.4 -2.7 volts. Batteries have a capacity of 400 mAh. The generator is connected in parallel to the batteries, but we put a diode on the plus of the generator in the forward direction, otherwise it will rotate like a motor.
That's the whole structure, now you have at your disposal a whole small power plant, the operation of which does not depend on the weather in any way, unlike a solar panel. Is the battery dead? It doesn't matter - with a few hand movements, it will recharge again. This device works at any time of the day, has small dimensions and reliability. Such a mechanical device is capable of charging not only a mobile phone, but also a bunch of other things - players, navigators, batteries, etc. One charge of the internal batteries of the device is enough to charge the mobile phone for about 30 minutes, and if the internal batteries are dead - then once, twice - and they are ready to charge the phone again.
The device is indispensable for lovers of hiking and fishing, as well as during travel and recreation. Mechanical charging can also be made from lamps with generators (they cost 30 rubles), but in this case the generator must be supplemented with a diode bridge, since such a generator generates alternating current that is not capable of charging batteries. Material sent - AKA.
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