I'm always looking for better, but in the world of batteries, thats a good thing, right?
My bike right now gets a good reliable 15 miles on 4 SLA 12 volt, 10AH batteries. They weigh 30 pounds, charge up in just under 4 hours, and won't explode if punctured. at $30 a battery, there not very expensive either.
But I want more range, and more life out of my battery. 15 miles is the distance to work for me one way by truck, but there's no way to take that route with a bike. No sidewalks, high trafic roads, and 45mph speedlimits or higher, meaning I'm going to take the long way.
What I need is a better battery. My goal is 20 amps at 48 volts and under 30 lbs, and under $500. Is there any possable way to reach this goal? And if I can't reach it, how much closer can I get than what I have now?