[TrunkCom] BC250D Heat Issue
Joe Hathaway
[email protected]
Thu, 09 Jan 2003 21:37:09 -0600
Many moons ago, I posted on several lists that I had tried a several
different output-voltage wall-warts on my NiCds in my BC245XLT. I found
that in addition to the 12-volt Uniden transformer supplied with the
radio, 9-volt and even 6-volt chargers worked just fine, merely
extending the charging period before warmth could be detected.
At that time, persons more "electronic" than I posted that the scanner
lowered the charge rate to about 70 mAh, by lowering the voltage
supplied to the battery. Clearly, even though the charger circuit did
not offer sensing of the pack's charge state, the voltage regulation
function was alive and well. It was explained by another poster at that
time that the scanner supplied the optimal charge rate to the pack, and
dumped any excess current as heat. May I respectfully suggest someone
else experiment with lower-voltage (rather than lower-amperage) wall
warts? {I pick up extras at flea markets for less than a buck each; as
my mother used to say, :"Why pay retail?")
Joe Hathaway