Later Battery Technology
For years the battery technology
has been first Nickel Cadmium,
NiCad batteries from 60+ years
back. Then Nickel Metal Hydride,
today is common in these
inexpensive GMRS radios. Maximum
capacity of these rechargeable
battery systems is 600 mAh to
700 mAh. At most about 10 hours
with little transmitting.
The Motorola radios, similar to the NMR350R below require little folded 11/4 inch aluminum foil strips under base of the two outside batteries folded slightly to make contact with the battery door metal charging tabs. The 3mm or wider copper desoldering braid also works for this purpose. Tape under makes sure no short to battery shell.