I have a new mower that has been in the shop several times for a dead battery. No the key is not been left on as the manufacturer is saying! I'm not sure about the amp draw on the tracking device but the dealer saying there's no way that the small amout of draw is causing the issue. I dont use the mower every day since I'm just starting out in the lawn business and my thoughts at this point is to could use a battery maintainer to stop this from happening again. I will be picking up the mower in the morning and sometime soon me and a buddy will do a complete amp draw test on the machine. Any thoughts?