Hello Brinkman, I am a hunter and I have two of your Brinkman spotlights and I use them in case of emergencies at camp and the spotlights are in excellent condition and the batteries are periodically charged every several months when not in use. I have the older version Max Million spotlight which has been used a few times . I had to replace one Brinkman Max Million 6V 4.5 AH Sealed Rechargeable battery previously to replace the old battery and this spotlight has not been used more than a few times to test it at camp with this new battery. I just noticed that the battery went 100% dead and I tried to charge it for two days and it does not even work at all . I am sure the issue is the battery. It will not hold charge. I have a 2nd new spotlight which is the Max Million 2 and the battery went flat dead on this one too. I tried to charge it for two days and it will not hold charge like the Max Million battery either. I wonder if you have a fix for these two batteries, for the Max Million and Max Million 2. I would appreciate it so much. Thank you Mark Galvan