I use this lipo charger : SparkFun USB LiPoly Charger - Single Cell - PRT-12711 - SparkFun Electronics with an Lipo battery of 400mAh/3.7V. This lipo charger can be configured in 2 ways : one with 500mA the other with 100mA. To drive it, I don't use the usb connector to charge the lipo but an 780…

Usb Lipo charger from Sparkfun question

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