Dear Gimpy,
I have no formal experience with power scooters. Only
experience I've had was briefly being able to work on a power
wheel chair for a woman I dated some years ago.
My guess is the motors on your scooter are 24 volts. This
means that both batteries are supplying the same amperage
(current) to the motor.
With an unmatched set, the one battery will go dead a lot
sooner. The new battery will be under much greater load. Being
unevenly yoked, so to speak. So, your new battery will go dead
sooner.
It isn't what you wanted to hear, but I'm guessing that in
the long run you will find it cheaper to replace both batteries
at the same time. Used 12 volt batteries are useful to HAM radio
operators, CB radio users, and folks like me who are into
emergency prep. Might also be useful for someone who's trying to
make an extra capacity Uninterruptable Power Supply for his
computer.
Wish I could save you a few bucks. I suspect a two- battery
replacement will be cheaper in the long run.

--

Christopher A. Young
You can't shout down a troll.
You have to starve them.
..

"Gimpy" wrote in message
...
: Am disabled & am using an electric scooter to get around
outside. Put in 2
: new batteries ( lead acid type ) (U1 Ah SLA ) the start of
last summer & by
: late summer one went bad & was replaced under warrantee . Now
the remaining
: one of the original pair is starting to go & was wondering if
it would be ok
: to run with the some what new one from last fall & put in a
new one before
: much longer to replace the one going bad. OR be best to keep
the somewhat
: used one & put in 2 brand new ones now ?? On S.S. so funds are
: limited.......Thanks Gimpy..
:
: