How to charge a 3.7V battery via usb?

N

Naughty19052016-05-09 19:06:22

Arduino

Naughty1905, 2016-05-09 19:06:22

Hello! There is an arduino pro mini and it needs to be powered from the battery so that it can be charged from usb, AAA batteries and accumulators are not suitable because of the dimensions, the device has some limitations in its length and width. I had to look for a way out and found such a battery www.chipdip.ru/product/lp-401220-pcm , but I don’t understand how to provide it with charging from a usb cable. Help me please!!!

Reply

Answer the question

In order to leave comments, you need to log in

1 answer(s)

A

Alexey, 2016-05-09
@Naughty1905

There are modules in China for charging Li-ion / Li-pol from USB.
Sometimes they even put them in tablets that have burned out the regular charging circuit.
Like this - www.ebay.com/itm/TP4056-5V-1A-Module-de-Chargeur-C...