CD42 DC 5V 2.1A Mobile Power Board 4.2V Charge / Discharge Boost Battery Protection DIY Indicator Module 3.7V Lithium 18650
![CD42 DC 5V 2.1A Mobile Power Board 4.2V Charge / Discharge Boost Battery Protection DIY Indicator Module 3.7V Lithium 18650](http://ae01.alicdn.com/kf/HTB16DnBavfsK1RjSszgq6yXzpXaV/CD42-DC-5V-2-1A-Mobile-Power-Board-4-2V-Charge-Discharge-Boost-Battery-Protection-DIY.jpg_350x350.jpg)
sku: 32966722549
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$0.52
Shipping from: China
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