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    Where to order Hailong / Reention battery cases USA

    Hello all. As the title states im wondering if there are best places to order the battery cases from in the USA? I dont need any electronics, just the largest Ebike battery case i can find, I have an offgrid battery system for emergencies and id like to finally put it into a case. Not sure if...
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    Controller recommendations for alternator motor.

    Hello all. Helping my brother put together an alternator motor setup for his kids go-kart. Great excuse for to me to work on my first motor project on someone else's dime ☺️. I'm looking for a 48v(minimum) controller in the 150-200 amp range. I would like something that can run sensorless, and...
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    Testing lots of NiMh Prius cells charger advice

    I have a large amount of Prius NiMh cells I need to test. A total of 30kw, 840 cells. I've definitely jumped ahead of myself in purchasing them but the price was far too good to pass up. I'm looking for advice on a high quality charger/discharger, to test the individual cells(which are not 18650...
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    How to determine power (volts/amps) needed for top speed.

    I'm currently an armchair enthusiast looking to learn more about the relationship between a motors power and the controller driving it. For example if I wanted to put a Nissan leaf motor in a small SUV like a ford escape, I can calculate the rpms needed after the read diff. to get the top speed...
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