Hey,
So I want to have 2 5S4P packs wired in series to operate the board and then wired in parallel to charge the battery.
So what I had thought of was to have my anti-spark switch between the 2 packs, to disconnect the series connection for charging and connecting the two packs in parallel.
My question is, is it ok to charge while the ESC is on at 18-21v or should I have a second loop key to disconnect the esc while charging. Can I set any settings on the ESC to make it safe (low voltage cutoff?)
The reason I want to charge like this is because I only have 8S balance chargers and my BMS/Charger is not scheduled to arrive until mid January…
The esc doesn’t have any way to offer any input to charging…I honestly wouldn’t do what you’re trying to do.
If you have an 8s balance charger you can charge one 5s side at a time.
Not sure I follow. I would be charging with a balance charger. Thing is, I would connect the packs in parallel to charge while the ESC is connected (so I don’t have to open the enclosure…) and it would see ~21v while charging.
I was battling with the same decision. I ended up just adding a second loopkey to be safe. I used an xt90 antispark for the esc loop key, then a male xt60 for the series connector and female xt60 for the second charge connector, at least that way it can only plug in one way.