3S 4S 5S 6S 7S 15A BMS 20A 18650 ion Lithium Battery Protection Board Module 12.6V 16.8V 21V 25.2V 29.4V Packs Heatsink

3S 4S 5S 6S 7S 15A BMS 20A 18650 ion Lithium Battery Protection Board Module 12.6V 16.8V 21V 25.2V 29.4V Packs Heatsink
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sku: 1005006306551623
$4.16-7%
$3.87
Shipping from: China
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