I have a Yamaha G1 2 stroke golf cart that the battery goes dead just sitting after a few days. The motor has been completely rebuilt. I have replaced the Gen/Starter, replaced both Solenoids, put in a new battery, checked for a draw with a test light (doesn't seem to have one). Charged the battery and one cell seems not to bubble, so I will take back the new Battery for replacement. What else could be the problem? Any help would be GREAT!