Diggin Metal
New member
I got a 1600 it only last for 3-5 hours depending if I turn the light on is this normal and does anybody use the AA battery pack with rechargeable batteries? that's what I use in my other detectors my f75 can go for days on 4 AA with the light on, and the AT gets about 20-30 hours what's up with my battery. And 18 hours to charge in the manual I never heard of any battery that takes 18 hours to charge.