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diy solar

Is the JK4S and 8S the same?

Alkaline

Solar Wizard
Joined
Jul 26, 2020
Messages
2,089
Location
Orange, Tx
I've been looking to get this but I can't find a 4s version only 8s? Is this the same unit and you can chose how many S you want?
 
this is the JK BMS you need B2A8S20P. Order from Hankzor on AliExpress
Yes, it handles from 4S thru 8S configurations.
IF you want the heating pad option be sure to order as such (-H suffix)
 
heating pad option looked good but but it doesn't do a lot of power....
if you need additional current handling, use the heating pad port on the BMS to control a higher current handling relay. The cost is minimal and it gives you options even if you don't use it immediately.
 
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