Joel wrote:
My NiCad battery gave up the ghost in my HT for the second time. They
only seem to last a few years, at the most. I was wondering if I
replace the NiCad's with newer NMHi batteries can I use the same
charger? Both type batteries are about 1.2 volts when charged. But
I'm not sure about their charging requirements.

Take a look at Isidor Buchmann's excellent articles at
http://www.buchmann.ca/
Takes a bit of time to study, but will answer 99% of your battery-related
questions.