I have a Razor MX-500...had it a few years. Ended up moving and leaving it sit in storage for about a year. It had a full charge when first put in storage...and it ran great. Pulled it out of storage...and its dead. The low battery light was on...and it would click when you turned the throttle, but it wouldnt move. Ok...dead battery...no big deal...but I couldnt find the charger for it. So I took the charge plug off my Razor Pocket Rocket, wired it to the MX-500...and tried using the charger from the Pocket Rocket. It wouldnt charge. So I ordered a new...and correct...charger for it, wired the original charge plug back to it and let it charge for 2 days. Unplugged it...and nothing. The power light is on, the low battery and full battery lights are not on...it no longer even clicks when I twist the throttle. ***?!?!? I did check and change the 30 amp fuse. So Im left sitting here, scratching my head, wondering whats wrong with it and if it can be fixed...without costing me an arm and a leg. One friend said its probably the batteries re shot from sitting. Another said its probably the control module. Does anyne have a more educated guess? Any advice would be very helpful...cuz my nephew is driving me nuts and I cant afford to go out and buy him a new one.