Glider Batteries and Chargers

"brianDG303" wrote in message
...
More about Glider Batteries:

My club's gliders use Gel batteries, probably because they fit the
mounts so well, but mostly the private gliders use a battery type with
many names, I guess it's an SLA (Sealed Lead Acid) except it's not
really sealed. I started to call it an AGM (Acid Glass Matt) which it
has, but suddenly it started to be called a VRLA (Valve Regulated Lead
Acid).

Perhaps I am calling what I use the wrong name.

What kind of battery is it, that is widely available form RC shops, 7 amp
hour, that does not care which side is mounted up, and has two male slide
terminals on it, side by side at one end of the battery?
--
Jim in NC