batteries

Submitted: Sunday, May 08, 2011 at 15:36

ThreadID: 86137 Views:2834 Replies:6 FollowUps:5

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Member - neville G (QLD)

I have two Century NZ70 batteries fitted to my TD Cruiser and they are just over three years old. I have just driven 1000 plus Klms. in the last two days and found the starter slugish this morning. I have just checked both with a hydrometer and both read flat. I have always looked after them and have a low voltage cutout in the fridge circuit which has performed well over the last five years. The vehicle has 15000Ks. up. Is this the life that can be expected from this type of battery and if so, is there a longer living type that I can install?.
Any advice will be appreciated.
Cheers, Nev.

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Reply By: oldtrack123 - Sunday, May 08, 2011 at 15:39

Sunday, May 08, 2011 at 15:39

Hi Neville
What voltage does the low voltage cut out drop out at???

Peter

AnswerID: 453620

Follow Up By: Member - neville G (QLD) - Sunday, May 08, 2011 at 15:42

Sunday, May 08, 2011 at 15:42

that was quick Peter and thanks, I believe 11.6 is the cut off voltage. Cheers, Nev.

FollowupID: 726463

Follow Up By: oldtrack123 - Sunday, May 08, 2011 at 17:20

Sunday, May 08, 2011 at 17:20

Hi Neville
They are not "deep cycle batteries" so if you have taken them down to that cutout point frequently it will have seriously shortened their life.

Try fully charging each one separately
You may have just one faulty one pulling the other down

Peter

FollowupID: 726472

Follow Up By: Member - neville G (QLD) - Monday, May 09, 2011 at 07:06

Monday, May 09, 2011 at 07:06

Yes Peter,
They have been to the cut-off point many times and that obviously has done the injury to them. I will speak to my battery man to see if there is a type that will better suit this type of use.
Thanks to all that have replied.
Cheers, Nev.

FollowupID: 726523

Follow Up By: Gronk - Monday, May 09, 2011 at 10:21

Monday, May 09, 2011 at 10:21

Whatever sort of battery you go with, you really need to work out how to stop the batts getting to a cut out voltage, as this type of abuse will kill any sort of battery..

You obviously don't drive the 4wd much, so you may need to depower the fridge every time you come home ???

FollowupID: 726544

Reply By: snoopyone - Sunday, May 08, 2011 at 15:42

Sunday, May 08, 2011 at 15:42

Mine died at 4 years.

AnswerID: 453622

Reply By: Bigfish - Sunday, May 08, 2011 at 16:17

Sunday, May 08, 2011 at 16:17

2-3 years is about what most of my mates get in the territory with similar batteries. Many running CAT batteries now with good warranty and performance. Heat is a killer(plus lack of maintenance.) Maybe they need a really good charge.ie---to full capacity.
cheers

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AnswerID: 453625

Reply By: Batt's - Sunday, May 08, 2011 at 17:55

Sunday, May 08, 2011 at 17:55

I think most low voltage cut outs are 10.6v I have an MRV70L Allrounder battery installed it in Dec/2007 hasn't missed a beat can run my evakool 47ltr fridge/freezer for 2 days and plenty of power left to start 4.2ltr diesel 4x4 their a combination cranking and deep cycle battery 105amp hour,760cca

AnswerID: 453634

Follow Up By: Batt's - Sunday, May 08, 2011 at 17:58

Sunday, May 08, 2011 at 17:58

ps.I only used NZ70 before good battery but wrecked it with the fridge

FollowupID: 726478

Reply By: SIF4X4 - Sunday, May 08, 2011 at 19:51

Sunday, May 08, 2011 at 19:51

Years ago I had a good run out of them...two lasted 5 years each....I ran both in parallel using one as an auxilliary battery. I replaced those and then my troubles started. Recently I had to throw one away under one year of age. There was no warranty on it(so Century supplier told me) as I had both batteries replaced under 2 years old. I now have a Deep Cycle battery as auxilliary and N70ZZ as cranking. This combination seems to be working for the moment but will look for a new cranking battery as Century don't make them tough any more.

Spero

AnswerID: 453654