ESP8266 Community Forum

churchill wrote:For my bathroom scale I use 2x 1.5v AA battery with a TPS61200. This little circuit is cool and can delivery a nice 3.3v from a curent starting at 0.5v to 5.5v.

Thanks, that TPS61200 module looks good so i just bought one to try.

torntrousers wrote:Yes, i guess something like 72 minutes.

For the lipo charging i use these.

This charging board is for 1000 mAh, right? I just saw some articles saying you should switch the resistor if you want to charge a battery with lower capacity. How do you charge 240 mAh batteries with this? Does it stop charging when the battery is full automatically?

AlexPilk wrote:This charging board is for 1000 mAh, right?

Why do you think so?

AlexPilk wrote:

torntrousers wrote:Yes, i guess something like 72 minutes.

For the lipo charging i use these.

This charging board is for 1000 mAh, right? I just saw some articles saying you should switch the resistor if you want to charge a battery with lower capacity. How do you charge 240 mAh batteries with this? Does it stop charging when the battery is full automatically?

I'd not heard that so I'm just using them as-is, it seems to work ok but i guess i don't know if its charging too fast and damaging the battery or something - anyone know? They do recharge pretty quickly like this which seems handy ...

Yes it does stop when fully charged, or actually switches to some trickle charge mode i think. And it has over discharge protection, and it lets you have the ESP powered on with the USB connected and charging up the battery too.