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Tag Archives: battery

Battery replacement plus possible modding

Battery replacement plus possible modding

Recently, I got an interesting Chinese tablet in my hands. According to the owner, after switching on the tablet works for a maximum of 5 seconds and turns off. It was decided to disassemble the tablet and see what the cause of the malfunction was. That’s actually the tablet itself. …

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Electronic battery recovery

Electronic battery recovery

According to statistics, a large half of the batteries fail because of the sulphation of the plates. For what reasons this phenomenon occurs, I will not particularly go into, but in a small part this is due to improper battery operation. And more – with a long period of battery …

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Charger for Li-Ion battery from junk

Charger for Li-Ion battery from junk

Many, probably, have a problem with charging a Li-Ion battery without a controller, I had this situation. The killed laptop was delivered, in the accumulator 4 banks SANYO UR18650A were alive. I decided to replace in the LED flashlight, instead of three AAA batteries. The question arose about charging them. …

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Charging for phone from battery 9 V

Charging for phone from battery 9 V

This master class will show you how to get 5 V for USB from a 9 V battery, and use it to charge a mobile phone. In the photo, the assembled circuitry is in operation, but this is not the final option, since I will do for him also the …

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Vinegar battery

Vinegar battery

This method was invented even by the ancient Egyptians, they used a copper cylinder and the zinc core it sank into wine vinegar and it was about a voltage of about 2 volts and used mostly to impart a thin layer of precious metals to ordinary metals

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