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Testing multiple active balancers from HeltecBMS.
34S 5.5A: https://s.click.aliexpress.com/e/_A0tzLR
4s 10A: https://s.click.aliexpress.com/e/_9i0zTJ
1216S 5.5A: https://s.click.aliexpress.com/e/_ABZEf3
Bluetooth 1024S 4A: https://s.click.aliexpress.com/e/_9x4aPF
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