I have had zero issues! I need to get the battery meter in the buggy updated to ready the battery level correctly but the Bluetooth app works perfect. I have way more range and so much faster. No low voltage errors.
ok here is my install 2018 Hisun Sector E1 had 8 AGM 6 volts in it and went with 4 48v Epoch Lithiums. The new charger is installed where the delta Q was and installed the new gauge on the best possible spot. charger port where the gas filler would be.