7S BMS 200A from China

b0re

Member
Joined
Aug 31, 2018
Messages
47
Hello,

Thought I would share my findings. The BMS in the picture is not the same as delivered way better.

Ordered 7s 200a BMS that cost $160for china.Woo very impressedwith the build quality shes not small lol. Done some basic testing at 100a all ok,need a few days to see how the balancingworks out. I will report back my findings.


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Korishan

Moderator
Staff member
Joined
Jan 7, 2017
Messages
6,324
Any way to pop off the heatsinks and take a look at the board?

Impressive unit
 

b0re

Member
Joined
Aug 31, 2018
Messages
47
Did try removing screws it would not come off. My guess is the red sink isglued to the mosfets
 

ajw22

Well-known member
Joined
Nov 16, 2018
Messages
503
The voltage parameters cannot be changed, can they?
Unfortunately, that makes these types of BMSs useless for powerwalls, since the balancing will only start when cells reach 4.18V.
What are you planning to use it for?
 
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