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    Etek R trouble shooting?

    I have a brushed, 2nd gen Etek R on my electric motorcycle, with a LiFePO4 48V 20A pack. The charger timer died and overcharged the pack and melted it down, on top of the Motor (HIGH Temps!). We have a new / used LiFePO4 48V 20A pack now, and have had the AllTrex controller factory Checked...
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    EVs: Welding versus Brazing

    Welding is much stronger, but is considerably hotter (melting point of the base metal, vs lower melting point of brazing rod). Welding is more forgiving on fit-up. Brazing is good for light-weight materials (sheet metal and tubing) where there is a danger of excessive warping due to uneven high...
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    idea for collective project - DIY A123 multicharger

    This is a great idea! - I am NOT an electrical engineer / electronics designeer; however, I can put together a circuit if someone does the pcb & parts list... I have a current, real need for a high amperage 48 volt charger for my new Lithium Iron Phosphate 48V/ 40ah battery pack... I would...
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