Need a new battery

Time for a new battery (she's starting to struggle) and was wondering if any guru's out there know of a battery to suit my needs. I work FIFO and leave the Nav at the airport for 9 days at a time, I want a battery that'll tolerate that sort of punishment.

I've heard of gel batteries, combine cycle and a few others but I'm not sure what to go for. Any help?

why not fit a isolator to prevent battery discharge?

The problem with the Navara D40 is that its on-board computer systems continually run and draw enough power to flatten the starter battery over a period of time. From memory it takes a couple of weeks for a battery in good condition to pass below the danger point where permanent irrecoverable damage occurs to the battery.

That's the 50% charge mark in our starter batteries. This will probably be why yours is suffering so much.

If you replace it with a gel battery you'll kill it fast - gels don't like being charged by an alternator, which usually puts out 14.4V-14.7V and the most you can charge a gel with is 14.1V.

Personally I'd just get another 700CCA starter for it, unless they're over $300 each - then I'd look at a spiral wound AGM.

I would talk to a battery specialist. They'll probably tell you that AGM batteries are a good alternative because you can discharge them to 20% of their capacity and they'll recover - plus the spiral wound ones can be fast-charged and batteries like the Optima D31A yellow top battery for $389 which can deliver 900CCA.

If you use a conventional battery. fit a Century. Best quality and excellent life.

Greg

Thanks for the great feedback guys, fingers crossed she starts when I get back to Perth tonight! I am considering a dual battery setup, not too keen on just the isolator, knowing myself I'll forget to use it

iv been thru several batteries and found the CAT 760CCA deep cycle to handle long periods without use well.

HJWB said:

Thanks for the great feedback guys, fingers crossed she starts when I get back to Perth tonight! I am considering a dual battery setup, not too keen on just the isolator, knowing myself I'll forget to use it

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Isolators are automatic, set-and-forget, they take care of your auxiliary battery without any intervention. Install and enjoy!

nismo4x4 said:

iv been thru several batteries and found the CAT 760CCA deep cycle to handle long periods without use well.

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I have a Cat battery in mine, $115 and 5 years warrenty. Cant go wrong.

would the Cat battery be more suited as a second battery??? been deep cycle.

i have an optima red top 800cca and its only 4 years old old and its just crapped it self so i wouldn't recomened one of them.

Dave said:

I have a Cat battery in mine, $115 and 5 years warrenty. Cant go wrong.

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What are the Cat batteries to which people refer? I have been on their web site & nothing seems to fit the bill.

Trying to find an equivalent to N70zz.

Ta

joe2006 said:

What are the Cat batteries to which people refer? I have been on their web site & nothing seems to fit the bill.

Trying to find an equivalent to N70zz.

Ta

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Me too!!!

century have 2 one is a N70ZZL 4WD with 760cca and the other is heavyduty DIN65LH 660cca, they recemmend the heavyduty one but i personally would fit the bigger one if it fits. My optima is almost capult after only 4 years so i wont be paying big bucks for another battery again.

Bought a $220 Yuassa N70ZZL for wifies car from Battery World in Oct 09 & it has just about shit itself.

Although it may be illogical because you get good ones & bad ones with all batteries, I won't go near another Century/Yuassa.

Called a Cat dealer. Closest size for purely a starter battery is their battery No. 153 5656.

Only problem is that the negative & positive posts are reversed for my application. Negative on RHS with posts closest to you.