reading the thread in Metal Detecting Tips about some batteries, I have a question. On my rechargable pack for the V3i it seems that the most I can get voltage wise is 11.2V. Is this a normal voltage for this battery pack? I can usually get about 4 hours of detecting time from the charge, again is this the norm? I do have some NiMH batteries, for my camera and headphones, was wondering if I purchased some more and put them in the other battery pack would that increase the voltage. I am believing that the better the voltage the better this machine works. I don't do electricity as I can get shocked putting batteries ina flashlight.

Opinions sought..............