Thinking of going from 6s to 9s

My current setup is a 245kv motor, Enertion VESC, and 6s battery. I was thinking of adding another battery to go to 9s to increase range. My question is - do I need a BMS?

I’d opt for 8S instead of 9S in your situation, but you don’t need a BMS just because you have a high voltage and discharge rating. A BMS is used to charge your board easily; a normal LiPo charger works fine, but I recommend using a charging board so you don’t have to worry about switching batteries three times.

Why 8S instead? I have 2 3S now. Sorry kind of a noob here…

This forum post explains it all!

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thanks! really appreciate it!

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No problem mate, have safe fun :wink: