I bought this 7.4V Li battery for my Heng Long P3. I cut the connector off of it that came with it and put the Heng Long Tamiya connector in its place.

https://www.ebay.com/itm/7-4V-1500mA...r/323043050526

I have a Venom PR2 charger. On the Lithium Ion setting, it has 2S - 7.2V, and the next step up is 3S - 10.8 V.

This is a 2S battery but is 7.4 V.

Should I charge it on the 2S-7.2V setting?

It came with its own USB style charger which I'm sure you all will disapprove of.

Steve