testing bms not charging new build. 13s 48v

Camerinboy

1 mW
Joined
Mar 11, 2021
Messages
17
I have built a few pack but for some reason this one isnt charging. Any ideas in case i am missing something obvious...or how do i test bms? Charger is fine cells are brand new and all good.
210902158_4161694050572895_4500139426587723435_n.jpg211498611_182173520546219_1403524163510113649_n.jpg
 
my first check is measuring all cell voltages if they are in range 3-4.2V. Measuring single cell voltages at the input of BMS. BMS in the second picture looks as if some soldering lead where it should not be.
 
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