In case you haven't heard of Battery University, it's an excellent resource for understanding how batteries work and how to get the most out of your batteries: http://batteryuniversity.com/learn/.

Cheers

Ray

I leave mine on a projector charger all the time as the patrol is not my daily drive. Had the batteries checked the other day both still punching out the same CCA as the day I installed them 4years ago.

Used to do the same, although the way the price of electricity is going i have stopped, as it was costing to much and I now have a carport insteaded of lockable garage.

I charge my campervan batteries ( 2 x 120A) about every 2-3 months with a Projecta 25A charger, but with colder weather coming on, I may have to keep a closer eye on the batteries.

Cheers

Ray