So I have the right charger for my lithium battery, but this is the second one that is drained and won't charge. I'm running total loss so I expect to charge it after every use and that's what I did all week. Charged it to 14.4 volts ran it and after every use charged it back up. I was ready to go out today, threw it on the charger just to check and it was fully charged. Drove 10 min down the road, put in and it barley cranked. After messing with it at the launch, put it back on the trailer and drove it back to camp. Threw it back on the charger and it was reading 9.6 volts???