I have 3 12v 5 AH SLA batteries hooked up in series powering a 36v 750W motor, how long will they be able to power the motor?
Fair. With that in mind, aid3n may need to choose a much bigger system for sure.It is well known that motors can take from 4 to 6 times their rated full load current at startup. Under this loading, the battery will essentially be looking at a near dead short for all intents and purposes. High discharge causes high gassing and heat within the battery which, when and if it breaks down will have possible explosive results.
by Robert Keim
by Lorenzo Mari