Tuesday, May 22, 2012 at 09:06
realy you have no choice other than to run an N70 sized battery in most 4Wds, that is what the vehicle needs and that is what the battery carrier is designed to take.
I am very strongly in favour of the use of marine batteries, generally they are better quality than the basic car battery and they are rugged construction.
They mostly have heavier plates and most importantly glass mat between the plates to help with the vibtarion.
Many manufacturers will offer a "4wd battery" or an "earth moving battery", mostly these are the same battery with a different colour case and a different lable as a marine battery......Mostly you can get a better deal on a marine battery.
As for cranking capacity (CCA), Because you are stuck with a single battery size and there is no free lunch and no mirricles, there will not be a huge difference in any capacity.
HOWEVER, as you move up the the range of batteries there will be considerable differences in performance as the construction improves and the chemistry changes.
A higher quality battery will generaly have better cold cranking, longer life and better performance all round.
The rugged construction batteries will generally be in the upper part of the quality range.
I can not recomend the use of AGM under bonnet as a general rule, because mostly they do not cope
well with the heat.
A good sealed, rugged construction wet cell battery will have most of the advantages of AGM much better heat tolerance and will be half the price.
If you can lay your hands on them the Catapillar batteries have a good rep.
Persoanlly I like the Supercharge brand, Seamaster Gold, I have had a good trot with them and they have a very good following among
boaties.
The Seamaster Gold is the sealed maintenance free version of the supercharge marine battery.
One point of difference with the seamaster gold, is that once out of warranty, if you peel the sticker off the top, the vent valves can be unscrewed and the battery topped up just like any other screw top battery.
cheers
AnswerID:
486444