2S 7.4V 4A 18650 Lithium Battery Protection Board Double String Protection Chip With Over-Charge Over-Discharge Over-Current

2S 7.4V 4A 18650 Lithium Battery Protection Board Double String Protection Chip With Over-Charge Over-Discharge Over-Current
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sku: 1005004100580405
$0.62
Shipping from: China
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