ESP8266 Community Forum

- Mon Aug 31, 2015 4:28 pm #27493 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.

I can speak French or Spanish, but my English can be a little funny

- Tue Sep 01, 2015 12:31 am #27520 Wow, thanks! Seems like the LIPOs are pretty durable. Got myself a few of those and the charging modules

- Tue Sep 01, 2015 1:04 am #27523 Has anyone tried phone batteries? Like the Nokia BL-5C: http://www.ebay.com/itm/Replacement-3-7 ... 1462060724
A bit more expensive, but looks more reliable. Any thoughts?

- Tue Sep 01, 2015 2:55 am #27531 Interesting to see how long they lasted - the AAA's ended up doing about 45 hours and the 240mAh LIPO about 13 hours.

Its a bit hard to measure the current use with light sleep as the current keeps changing, my multimeter dances around a lot between 1ma - 13ma - 70ma, the ESP doc says light sleep minimum is 0.5ma.

I wonder what the tinest battery that would work is?