Thread: e-bike update
View Single Post
Old 04-28-2008, 10:22 AM   #27 (permalink)
Lazarus
ECO-Evolution
 
Lazarus's Avatar
 
Join Date: Nov 2007
Location: Central Texas
Posts: 1,482

Iron Horse (retired) - '97 Iron horse Intrepid

Ninja - '08 Kawasaki 250R
90 day: 76.23 mpg (US)
Thanks: 17
Thanked 45 Times in 34 Posts
Quote:
Originally Posted by MetroMPG View Post
Are they starting to experience some hot temps? I like the line "batteries are killed in the winter, but they die in the summer".

Also just a thought on your previous post: with flooded batteries at least (not sure if the SLA's are the same), there's an optimal depth of discharge to number of cycles ratio. You've mentioned you're "getting more use out of the pack". Something to think about.
Yes we are seeing mid to high 80's now but I've never taken them below 36.5 volts under load. So I don't think that's it. I've read that there is a cutoff at 33 volts that kills the pack so you can't power it anymore. I also seemed to remember reading that the batteries were good for about 220 cycles which I'm over halfway there so I don't know. I've never killed the pack to where I could not go so I'll just monitor it and see what happens. As of now the performance and range has not been affected.
__________________
"Judge a person by their questions rather than their answers."

  Reply With Quote