Okay, so this is my second bms (other one was faulty) and as soon as I connected it all up it started smoking. I immediatly disconnected it and I think its fine. Could someone help me? The model number for my bms is: WH-8550S5/ 6A10
It is important the battery wires get connect first and then the balance wires. There’s a reason why some listing say this and a few users here follow it.
Electrical current flows from Neg to Pos. Therefore, battery 1 supplies neg and battery 2 supplies pos to the system.
The Pos wire from battery 1 is connected to the neg wire from battery 2 to put them in series.
And I don’t see how this bms is for 6s when it only has 5 balance pins.
It should have 6 balance pins.
I know Namasaki, and I’ve hooked it up in series (voltmeter measures ~24v) and I bought this on a recommendation from an instructable… Link is above (for the bms, says 6s).
I can only recommend getting a different BMS. Even for charge only you should have more than 5a max.
And you have to have at least 6 balance wires for 6s.
And, I have never seen a bms before with neg and pos connections on the bms.
Usually its just neg connections.
Get a reputable brand like Battery Supports, their eBay name is Supower.