4S 12V or 14.6V Active balance BMS with 40A or 100A constant current and Max 5A balance current

$76.86 $139.89

$51.28 $80.51

$76.19 $93.71

$45.68 $79.49

$39.27 $67.93

$69.06 $127.76

$40.74 $59.89

$68.36 $90.91

$37.89 $56.08

$52.7 $70.62

$59.42 $99.82

$80.7 $115.41

$31.69 $56.72

$73.83 $113.69