Just figured out that my onboard charger is the cause of my two bad batteries in the last few months, what a bummer!! Well that's ok I'll send it back to the company and have it repaired, well not so quick, the model I opted for (the lower priced one) they don't do repairs on. If only I would have spent the extra 70 bucks. So now I gotta get a new unit, won't be cheaping out on the next one.