I am new to the forum and very anxious to swap advice with members. I bought my '07 Gem new and have had many problems since. Replaced the charger, batteries twice (gels), motor controller and the temp sensor. The problem stems from the lack of technical support from learned technicians, therefore it is a trial and error method of remedial approach for repair. I think this forum is an excellent way to vent my views with other Gem owners and maybe we may all become “professionals” to keep our vehicles in tune without spending unnecessary money operating in the dark.