RW> Before I moved my workbench out of the garage, I maintained two batteries
RW> on one trickle charger as I mentioned above. One of those two was out of
RW> my 2001 Rodeo and came out of a Honda previous to being installed in the
RW> Rodeo. It had to be at least ten years old at the time. The trickle
RW> charger kept it at peak voltage, but when removed, it quickly died to a
RW> level of 9 volts.

 MH> Sounds like a bad cell.  I had one in my old HD battery.  I would
 MH> charge it all the way up, ride it somewhere, stop and get gas, and
 MH> it wouldn't re-start.  It just couldn't hold a charge very long at
 MH> all.  

this is one reason why i have /never/ turned off my vehicle when fueling
up... that and it costs more in fuel to start one than it does to turn it
off and restart it... i've been known to leave my vehicle idling for hours
at certain times specifically because of the fuel consumption thing...

)\/(ark