/diy/ - Do It Yourself

>>1123025
>So do i just apply like what voltage to the connector?

Unfortunately it's not that simple. I think in theory you could just apply 4.2V * number-of-cells & stop charging when the resting voltage of the pack reached the charging voltage, but that would only charge the pack to ~70%.

A proper lithium charger uses a voltage that tracks just above the resting voltage of the pack, maintaining constant current, then stops raising the voltage when it reaches 4.2V * number-of-cells & monitors the current until it drops to ~10% of the original.

http://www.tjinguytech.com/charging-how-tos/how-lipo-chargers-work