Hi there. Hope you folks Can help me. I have Got ny hands on a bms and Would only use it to charge, not discharge. My bms does NOT have a P-… is that Strange? Can i do it This Way?
Just connect the Battery - to the VESC Directly instead going through the BMS. This will discharge directly. the C- will only connect to the Charger. But your Regen charging will then also bypass the BMS.
I would stay safe and keep the BMS connected. Is 45A not enough for your setup ?
Thanx for speedy reply! I have 10s2p Li-on 18650 batterypack. I use a vesc. I have some concerns about the 45A when regenerativ-Breaking. That is why i was thinking about leave the bms out when discharge, and only use it for charging. Think it would work??
No, there are different kinds of BMS,
- charge and discharge different port (C- = charge, P- = discharge)
- charge and discharge same port (in your case C- = charge and discharge)
Do you have specs for the BMS, or what’s the dimensions? Maybe you can use it for discharge, too.
No reason to worry
2 Likes
Looks good, I would use it for discharge, too. It would shut off at 130A (±10A) which is more than you will ever discharge, especially with 2p. But you limit that in the settings anyway. Also you have to limit the batt regen to 4-5A ech vesc because of 2p. No way you will ever reach 45A.
Connect Battery (-) to BMS B- Connect Battery (+) to charge port (+) and use it for positive discharge Connect BMS C- to charge port (-) and use it for negative discharge
1 Like
Think you so much!!
1 Like
It seems to be Working fine! Thanks again! Just a quick question…: I have a 12v charger… Can i use it, or will it fry?
Do you mean 12V input or output voltage? For 10s you need a 42V Li-ion charger.
Og sorry. Of course output. I order one strait away Thank again