The 4S 20A 18650 Lithium Battery Protection Board is designed to safeguard 14.8V (16.8V max) Li-ion battery packs from overcharge, over-discharge, and short circuits. With a 20A continuous discharge capacity, it ensures stable performance and extended battery life, making it ideal for power tools, e-bikes, and DIY battery projects.
Dimensions:
Approx. 56mm × 45mm × 4mm
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