At 11:55 16 September 2012, K wrote:

Use caution with these. Ive found the best chargers for the AGM batteries
l=
ike Power-Sonic which most of us use are the chargers sold by
Power-Sonic.
=
The Power-Sonic charger for the 12V 9AH battery (Commonly used for
gliders)=
shows a charge rate of 800MA and this thing is 2.5A. Further, Ive tried
se=
veral different chargers and the PS chargers determine peak and switch to
f=
loat CONSISTENTLY (Emphasis) better than most of the chargers Ive tried.
Th=
e higher the charge rate or the continuous charge past peak, The hotter
the=
internal battery temp during charging the shorter the battery life.


The heading on the original post was about the Optimate series,
unfortunately the web page showed the Optimate 5. As I said, I use a bank
of Optimate 4's which is the right model for glider batteries. The maximum
charge rate is 800MA.

The manual sounds complicated, but all you need to do is plug it in and
leave it on - all winter in particular:

http://www.optimate.co.uk/Optimate%2...structions.pdf


I test the capacity of my batteries regularly, worth changing after 3 or 4
seasons and I think that goes for whatever charger you use.

Mike