I have one of those fancy Maha C777+ chargers that charge, discharge and
monitor mAh in, mAh out, voltage and charging time so I have been playing
with several different brands of batteries.

I use the Maha Powerex 2500s which are the latest version of the highest
rated Ni-Mh double A's. Definitely an improvement over a lot of the older
models. They have a first 24 hour self discharge rate of about 5% but even
Maha says they should not be expected to hold a usable charge longer than
about 30 days. The Energizer (Sanyo) Ni-Mh double As are among the worst
loosing up to around 25% in the first day.

One other thing I have found. You can't get a new Ni-Mh to accept a full
charge until it has been cycled 4 or 5 times. If you charge them then use
them until the voltage starts to drop and recharge several times you get 20
to 25% more capacity.

--
Glenn Ashmore

I'm building a 45' cutter in strip/composite. Watch my progress (or lack
there of) at: http://www.rutuonline.com
Shameless Commercial Division: http://www.spade-anchor-us.com

"Larry" wrote in message
...
"Glenn Ashmore" wrote in news:Q3fPg.49456$ok5.43395
@dukeread01:

Up to 10% in the first 24 hours
and 1 or 2% per day after that

Hmm....I wonder if that is still true on the new Ni-Mh batteries. I just
turned on a little flashlight I keep in my desk. It's got two Tokima 2200
maH Ni-Mh batteries I can't remember when I charged, but it has to be 8-9
months ago. The bulb, not LED, in the little flashlight is just as bright
as it ever is. I'm going to leave it on to see how long it will be until
it's dead. 230maH in the first day? Wow, that's a lot of loss...

These batteries should have self-discharged long ago, by now.



--
There's amazing intelligence in the Universe.
You can tell because none of them ever called Earth.