I'll grab a pair of LiFePo4 charger boards: https://hackaday.io/project/18041-lifepo4wered18650
- built around CN3801, charge current up to 1,5 A
- can charge from USB, micro USB connector on board
- USB signals broken out to 0.1" header
- does MPPT so you can use a solar cell (5 - 6V) as well, they claim that the MPPT algorithm won't overload a USB charger
- LiFePo4 battery is included (size 18650)
- should be cool for projects that must operate outside
- USD 18 a piece + shared shipping + forward shipping from DE
Shipping to Germany is kinda expensive so if anyone close by is interested, I can add your order to mine. Please PM me in that case.
Regards
Christoph
- built around CN3801, charge current up to 1,5 A
- can charge from USB, micro USB connector on board
- USB signals broken out to 0.1" header
- does MPPT so you can use a solar cell (5 - 6V) as well, they claim that the MPPT algorithm won't overload a USB charger
- LiFePo4 battery is included (size 18650)
- should be cool for projects that must operate outside
- USD 18 a piece + shared shipping + forward shipping from DE
Shipping to Germany is kinda expensive so if anyone close by is interested, I can add your order to mine. Please PM me in that case.
Regards
Christoph