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100v 500a dc motor controller

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    100v 500a dc motor controller

    Im in the process of planning an electric bike build and was wondering if theres any reason i couldn't use this controller for a brushed rear hub motor 36v 1500w. The controller is rated at 22v/100v 350a continuous and 500a for 5 seconds. The reason i want to run this particular controller is ive read heaps of stories of people blowing there controllers after they up the voltage for more performance, ive always modified car and bike engines for maximum performance so when ive learnt enough about electrics id like to run at 72v,or 90v ill be running 36v for now. The controller has 18 fets and the terminals bars look like they would handle more amps than you could possibly put through an ebike motor. It says you can use a hall sensor or potentiometer for throttle and its programmable so would be able to limit the current. Another reason i want to run this controller is i plan on running lots of 36v 10ah batteries in parallel so its going to have heaps of amps at the controller, my theory behind all the batteries is you can spread them all over the bike instead of having one big 40ah block im hoping to run 5 10ah packs in the middle of the bike frame and another 2 or 4 beside the back tire, i know thats probably over kill but i want it to have long range and be capable of doing 70kmh.

    #2
    HIGHLY recommend NOT placing batteries "all over" as the wire runs between each "mini pack" will have loss, and make it next to impossible to balance the batteries. Longer wire =loss through heat. Not to mention the extra weight and difficulty of hiding those thick wires. It is always best to have identical spacing between each cell(wire run wise) and keep the wire from the full pack of cells as short as possible to the motor. I am not familiar with that controller so can not say one way or the other. Provide a link and I am sure somebody will read it over. One question for you, why start with a 36v motor, but willing to invest in a high voltage controller? You sound like you already know you will be upgrading in the future(or no need for such a large controller). I would recommend just splurging for a higher voltage motor. Just my $.02 tho

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