Hi all
Does this look right for charge only
its a Bestech HCX-D606V1L10S25A-01
That config is in neither charge or discharge. You’re bypassing it entirely and only using it for balancing.
Charger minus needs to go to P-. Preferably with a fuse inline with it.
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No; try one of these for bypass
Don’t forget the fuse
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Also that BMS looks like it might have a B0 balance wire which connects to B-, it’s the same potential. Depends if there are ten or eleven balance wires.
If you don’t have a C- or CH- then connect that wire to P-
i’m getting a 4A charger, which fuse rating do you recommend
Yes there is 11 wires i only want to use this for charge only
is this right
Usually you select a fuse around 150-200% your constant current. A 7.5 or 10a fuse will be fine for 4A charging.
Main batt neg to B-
B0 on balance leads to B-
Charger positive to main batt positive
Charger negative to CH- or P-
On some BMS there is P-/Ch- and sometimes a P- port right next to that. Usually they are connected via the PCB already and a quick continuity check will confirm that. Hook yo ch- when you have the option
Approximately double, 7.5A in this case
https://www.mouser.com/ProductDetail/Littelfuse/0997075WXN?qs=bpnLQM2ZShwcHyOYzoHBAA%3D%3D
I just solder to it and epoxy it inside the enclosure somewhere
Does it look right now
Yes this looks much better except you need a way to turn it off. So put a loopkey in the negative line that goes to the Load, on the left. (or antispark on both the + and - going to the Load)
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