Maker Pro
Maker Pro

Cell phone battery charger options



Jan 1, 1970
I just retired a Samsung 3500 cell phone (Sprint) for a new Sanyo SCP-4600
(Sprint). I'd like to avoid paying more for a new desktop charging holster
and car charger than I did for the entire phone plus wall outlet charger
($29.95). The batteries for the old/new phones are different size, but the
voltages are the same. Both phones charge fully in about 3-4 hours.
Shouldn't I be able to make a suitable socket adapter -- connecting to the
two metal contacts at the bottom of the battery -- then connect to my older
chargers? If there are cautions and formulas to consider, can someone
suggest those?

And I wonder if it is time to just *buy* one of those microprocessor
controlled universal chargers, with the adjustable contacts that can mate
with any battery. Any experience with those?