72v 84v 20 string BMS 40A discharge Balance IC Protection Board PCB DIY 3.7v 18650 21700 26650 20s Lithium Battery pack

72v 84v 20 string BMS 40A discharge Balance IC Protection Board PCB DIY 3.7v 18650 21700 26650 20s Lithium Battery pack
sku: 1005004437367353
$29.58
Shipping from: China
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