I have a niterider evolution plus system I bought 2 years ago, and replaced the battery last year. Now the stupid thing will not keep a charge again for more than 45 min. Even new, the battery did not hold a charge for as long as advertized. As far as the light up fuel gague, that has never gone beyond the 2nd light. I use the smart charge 6v fast charger that came with the unit and have tried different times on the carger. The connections are fine.
I am tired of buying batteries if it is the electronics in the light head. Anyone have experience with this light system.