cavejunky
Registered
Just recently purchased a used Mako. The scooter is in excellent shape and works great. The only concern I have is than when I connect it to the charger it sparks and the fan and power light on the charger come on. The charger charges the battery just fine, but it is somehow backfeeding from the battery to the charger. This occurs even if the charger is not plugged in. I opened the charger and checked the circuitry. All diodes seem to be in working order and the voltage output is correct. Any ideas?