Wednesday, Apr 11, 2012 at 20:38
Hate to tell you but advances in batteries are few and far between. They are still 6 cell and easily die an early death if you don't look after them.
Under the bonnet:
Simplest and cheapest is a hybrid wet cell, like the Exide Extreme or Yuasa Overlander. They survive the heat, can recharge quickly and don't cost an arm and leg. About 80Ah in an N70 case.
Next option is a quality AGM like the Optima. Downside is only 75Ah in a 13" case, but upside is they are more resiliant than the average cheap AGM and have come down in price. I wouldn't put a cheap AGM under the bonnet.
Third option is a wet cell deep cycle. Never been a fan of them - many only come with a 6 month warranty. But some people get a good run out of the more expensive high capacity ones (eg 115Ah 13" batteries - Trojan and Caterpillar come to mind)
I wouldn't buy a Ca-Ca battery - they don't like vibration, need a higher charge voltage than the average alternator can provide and I've seen a few too many fail on corrugated outback roads.
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