We get a lot of enquiries about batteries, their performance, and what is the best type or brand of battery for an application. At 4QD we aren’t battery experts but we are interested in the subject and have picked up a bit of knowledge about it.
Here are a couple of links to sites that provide some good information.
The Caravan Club has this guide to leisure batteries which gives a good explanation of the different constructions and uses.
If you really want to go into depth then the Battery University is worth a look.