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Wow new BH Topband's are not Navitas - Not even close

Joe BoyKey

Watts, Watts, more Watts
Joined
Sep 11, 2020
Messages
534
Location
Austin Texas
48 - 3.2 25ah Topband batteries = received today, shipped quick, packing superb, voltage consistency - HORRIBLE:
Now i no why they sold in lots of 24, still have shipping labels from China, New - the real deal, tested = yada, yada, yada=
39 were great 3.28v, 4-3.27, 3-3.22, 2-2.92 YUCK, spent most of the afternoon top balancing low cells up to 3.28 just so I could build 4p4s to charge with 12v lipo charger. Still happy, marked cells with voltage so I will know if it is low after top balancing, Joe.
 
I got some today as well and they were at similar SOC. The ad did say that to meet standards for shipping, they had to be discharged to certain levels. So far, no problems yet for me after charging
 
No bus bars or nuts, purchased 100 nuts on Amazon and flatten 3/8 inch copper tube in 12 ton press
 

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All balanced and waiting on Bms to build 16s4p 51.2v 100ah Battery. The low vols cells were top balanced to 3.28 to match normal cells, disconnected overnight and were good the next morning, Joe.
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