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  • KimS99 commented on rodski's instructable PowerBanks "How it Works"11 months ago
    PowerBanks  "How it Works"

    Hi. I recently bought a Samsung 50000 mAh powerbank for my smartphone. How do I know when it is already full or emptied? It only has 4 dots with light right now since I just bought it a while ago and is now using it. My phone is 1850 mAh battery powered.

    *4 dots as inzdocators and a on/off button.

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