Very good shape, being taller than usual, and taking less floor space.
This monster, having so little foot print, has enormous amount of juice. Over 4kWh!
App is showing right amount of % left in battery. I would give 4,5 star because 3rd party software didn't work with this BMS and humsienk own app is lacking advanced mode to see more info and statistics. Like cycle amount. But for casual use, it is enough.
Very highly recommend so far.
Replaced 4 12 volt lead acid batteries to the 12volt 100ah lithium batteries. Night and day difference.
Let me start off by saying this battery is huge in a good way. 110lbs (640ah) is awesome to have the capacity. If your running just one in a 12v setup or 4 in a massive 48v setup. The capacity for the price is hard to beat
The build quality is excellent also
https://youtu.be/Xdo8ujsjTs4?si=cbXozV79-a9RMbLF
