Quote:
Originally Posted by Bicycle Bob
Does the bike not have a kick starter? If not, a bump start is more fun anyway. You can delete the weight of the starter motor.
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It's a 400 lb street bike, so no kick start. In my (original) CBR600, I replaced the battery with 6s 400F capacitors and had no issues except for the 1 time I let a friend ride it, and he drained them by turning the engine off but keeping the headlight on. I was barely able to bump start going down a steep and long hill. Pretty sure you need some remaining voltage to get the bump start method to work.
Quote:
Originally Posted by serialk11r
That's pretty weird, bikes are usually easy to start with a 7Ah battery. You can start most 4 cylinder cars with a 10Ah lead acid battery that's fully charged. Why not buy a 7-10Ah battery and see if it works first?
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I bought a super cheap LiFePO4 battery and attempted to start the bike, but integrated into the BMS is overcurrent protection. It seems all of these cheap batteries contain this circuitry. I was hoping to find something with no circuitry, but no such luck... which is why buying the individual 7.2 Ah cells seems the best option at the moment.
... decided $31 to experiment is not too much. Placed the order, except it says shipping could take from 2-6 weeks. We'll see if the DMV can complete the title and registration on the motorcycle, or if I can build this LiFePO4 pack first. Not sure if I'll need to balance the cells... I've had a 20Ah LiFePO4 in a Prius since 2016 and never balanced it.
... in the meantime I'll get my supercaps going again in the motorcycle.