batteries batteries

[jlustig83]

ok say i was wanting to make 36volts in an electric motorcycle. I was wondering wether three 12volt car bateries would last longer than 30 nimhs with a 600 watt motor and a 36 amp controller. So Witch batteries would get me more miles and last longer. thanks

Originally Posted by jlustig83

ok say i was wanting to make 36volts in an electric motorcycle. I was wondering wether three 12volt car bateries would last longer than 30 nimhs with a 600 watt motor and a 36 amp controller. So Witch batteries would get me more miles and last longer. thanks

car batteries are so much more powerfull than nimh's if you consider a weak car battery will have over 350cca's

[jlustig83]

Originally Posted by azjc

car batteries are so much more powerfull than nimh's if you consider a weak car battery will have over 350cca's

but how many amps would 30 nimhs have at 3800 mah

Originally Posted by jlustig83

but how many amps would 30 nimhs have at 3800 mah

if its wired in series 3.8 amps

[lincpimp]

Anyone considered weight? 3 regular sized car batts would weight close to 60 lbs?!?!

I would go with a123 cells, at least 10 in series, and maybe 3-5 in parallel, so 30-50 cells total.

[highflier]

A123 wouldbe nice, However 50 cells is 500.00 You can get 3 deep cycles for 150.00 So like they say how much do you want to spend.

highflier

[BrianG]

And with car batteries, you can apply a constant trickle charge without hurting them, whereas any Li chemistry wants to see at the very least a CC charge with a voltage limit - ideally, a CC charge ending with a CV "top-off".