I'm a big guy...350. I put a Brute kit on a Worksman bike last year and I love it but...
I want to ride this to work. It's 20 miles RT. I can charge the bike at work.
Currently I have 48V 12ah SLA (two 24v 12ah in series)
The first and only time I rode to work the batteries gave out about a mile from work. I was able to make it but it was a scare and I want to be sure I have the power available.
On the ride home I pedal more because I don't mind if I sweat. The ride home I pedaled a lot more and the battery indicator turned yellow but did not cut out.
I want enough battery power to make it one way (in the morning when I don't pedal very much) and welcome advice selecting different battery technology.
I got the kit from Electric Rider and they only recommend SLA batteries. They do have a company on their site that sells Nimh batteries but don't really recommend them, but, if you're going to use Nimh that's who they would use.
I've heard/read that LifePo4 batteries may not be able to supply high current for long periods. I've heard that Nimh are sensitive to discharge/charge cycles...
I don't want to change the motor to a higher voltage unless absolutely necessary.
Is the info I've been reading old info?
Should I get Nimh or LifePo4?
Do you think 48v 20ah would be sufficient using either battery type or would 30ah be best?
Sorry for all the questions...thanks for any advice!