Dual USB 5V 1A 2.1A Mobile Power Bank 18650 Battery Charger PCB For Phone DIY
3,50 €
This product is only suitable for 3.7V 18650 battery flat. USB output: 5V 1A / 5V 2.1A. Power input: 5V 1A. PCB size: 65 22 mm (approx.). Note: Multiple battery soldered together, be sure to add insulation sheet in the positive, without battery insulation sheet is likely to cause a short circuit.
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