【Zeee 7.4V 5200mAh Lipo Specification】- Battery Voltage: 7.4V; Configuration: 2S1P; Cell Voltage: 3.2~4.2V; Capacity: 5200mAh; Discharge: 50C; Plug: Deans T ...

Energy storage efficiency per unit volume is also low compared with modern lithium polymer (LiPo) batteries so all in all they don’t look all that useful for many of our projects. However ...

As far as battery technology goes ... Luckily, [Paul] sent in a great tutorial on building a LiPo charger that works over USB. The board [Paul] came up with is incredibly small – just barely ...