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  • AlexanderY12 commented on DIY Hacks and How Tos's instructable Wrist Cooling System3 years ago
    Wrist Cooling System

    Hi, Is it possible to use a smaller battery in order to have it portable? Thinking of building the initial part without the control circuit. Therefore having it as a cooler but nothing more than maybe an on and off switch. Having it all in one gadget if its possible with a small battery.Thanks.

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