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18650 cell

  1. Putting together two lithium (18650) packs in series

    Batteries and Charging
    Hello all, I've got a bit of a question. I'm looking to upgrade my battery pack to a home-made 18650 pack, but I know in the future I'm going to be doubling my voltage and upgrading the motor, controller etc. I can't afford to do this now, but I'm wondering if I can build half my pack now to...

  2. USB powered 1A Li-Ion charger $1.99

    Batteries and Charging
    I just purchased one of these: http://www.ebay.com/itm/190898629075 I figured I can't go too far wrong at 2 bucks with free shipping. It uses the TP4056 IC which is a constant current voltage limited charger, resistor programmable from about 50 mA to 1A, and can be connected to a USB port or a...
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