Hello everyone. I recently purchased a 2017 Gem E6. I had to make a few mods to it, below are the modifications:
- 14" Wheels sitting 23.5" tall
- 8 x 12V LifePO4 Batteries 100 AMP. 2p4s ~ 48V 200 Amps
- Ride4Fun SpeedKit 1, to my understanding it is a gear box upgrade
Everything was running fine for the first 2 months after the upgrades, the AMP draw to my batteries would reach about 300 AMPS during acceleration and top off at around 120 AMPS when reaching about 34-35 mph.
Over the past few days, when the batteries would get around 65% SOC I noticed during acceleration my AMP draw would only get to 180 AMPS thus slowing down acceleration. Top speed would be the same around 34-35 MPH the only issue is during acceleration the Gem isnt coming off the line as quick as it used to. During the first 2 months my batteries could be 50% SOC and I still would come off the line quick.
I dont know if this is a battery issue or motor controller issue. During the past week I did have a stereo with 4 speakers installed and I also made sure my tires were 35 psi, where before they were around 28 PSI. I dont think any of those would cause this issue, but that is why I am writing this topic.
Any help would be most appreciated.
PS: I know the LifePO4 batteries are not the best and most ideal, but it was hard for me to find a charger to satisfy batteries like the Chevy Bolt or Tesla batteries.