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Thread: Battery Advice.

  1. 10th December 2013, 07:05 PM #1
    d2dave's Avatar
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    Battery Advice.

    I am looking at options for a second battery to run fridge.

    I can buy this for $280 and it has a 100 AH capacity

    12 Volt 105AH 780CCA Drycell AGM Battery Deep Cycle Dual HVT70ZZD Caravan 100AH | eBay

    Or I can get this for $335 and it has 75 Ah capacity.

    http://www.ebay.com.au/itm/OPTIMA-YE...item4acb6e652a

    Both are similar in size and weight.

    Any battery experts here for pros and cons of the two?
    Dave.

    I was asked " Is it ignorance or apathy?" I replied "I don't know and I don't care."


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  2. 10th December 2013, 07:15 PM #2
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    Quote Originally Posted by Mr Whippy View Post
    I am looking at options for a second battery to run fridge.

    I can buy this for $280 and it has a 100 AH capacity

    12 Volt 105AH 780CCA Drycell AGM Battery Deep Cycle Dual HVT70ZZD Caravan 100AH | eBay

    Or I can get this for $335 and it has 75 Ah capacity.

    12 Volt 105AH 780CCA Drycell AGM Battery Deep Cycle Dual HVT70ZZD Caravan 100AH | eBay

    Both are similar in size and weight.

    Any battery experts here for pros and cons of the two?
    First bit of advice, fix your links. They both point to the same battery.
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  3. 10th December 2013, 10:39 PM #3
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    Quote Originally Posted by Mick_Marsh View Post
    First bit of advice, fix your links. They both point to the same battery.
    Done. My Bad.
    Dave.

    I was asked " Is it ignorance or apathy?" I replied "I don't know and I don't care."


    1983 RR gone (wish I kept it)
    1996 TDI ES.
    2003 TD5 HSE
    1987 Isuzu County
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  4. 10th December 2013, 11:16 PM #4
    Hoges
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    Bought a Supercharge (Not Supercheap) "All rounder" abt 105 AH and 760 CCA. One up front under bonnet, the other elsewhere, now 3 yrs old and still in excellent condition. Well under $200 ea with AULRO discount
    MY99 RR P38 HSE 4.6 (Thor) gone (to Tasmania)
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  5. 10th December 2013, 11:41 PM #5
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    Quote Originally Posted by Hoges View Post
    Bought a Supercharge (Not Supercheap) "All rounder" abt 105 AH and 760 CCA. One up front under bonnet, the other elsewhere, now 3 yrs old and still in excellent condition. Well under $200 ea with AULRO discount
    Is this an SLA or a wet battery? As I will be putting in the rear I want an SLA.
    Dave.

    I was asked " Is it ignorance or apathy?" I replied "I don't know and I don't care."


    1983 RR gone (wish I kept it)
    1996 TDI ES.
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  6. 11th December 2013, 12:48 AM #6
    slug_burner
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    I got my yellow top 31A in 2005, did an outback trip for approx 6 weeks then sat around on the garage floor for a year and had not self discharged. Since then I have used it on the portable fridge during renovations and used it as a starting battery where the D2 has run it flat while sitting on in the drive for weeks at a time. Charged and brought back to serviceable condition on multiple occasions. It is still starting the D2 at the moment.

    I can't speak about your other choice.

    I have heard people here say that the Optima are expensive and that they are not what they used to be. If I was buying another second battery I would go another yellow top, they do a good job as a starting battery as well.
    Quote Originally Posted by benji View Post
    ........

    Maybe we're expecting too much out of what really is a smallish motor allready pushing 2 tonnes. Just because it's a v8 doesn't mean it's powerfull.

    One answer REV IT BABY REV IT!!!
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  7. 11th December 2013, 02:02 AM #7
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    Yellowtop
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  8. 11th December 2013, 07:12 AM #8
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    FWIW I have chosen to use the same type of battery for the second battery (fridge & accessory power) on the basis that (1) they are far cheaper and (2) they can be swapped for if the cranking battery gives up the ghost in a remote situation.
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  9. 11th December 2013, 07:52 AM #9
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    Quote Originally Posted by 87County View Post
    FWIW I have chosen to use the same type of battery for the second battery (fridge & accessory power) on the basis that (1) they are far cheaper and (2) they can be swapped for if the cranking battery gives up the ghost in a remote situation.
    I assume that you are referring to the one that is NOT the optima?
    Dave.

    I was asked " Is it ignorance or apathy?" I replied "I don't know and I don't care."


    1983 RR gone (wish I kept it)
    1996 TDI ES.
    2003 TD5 HSE
    1987 Isuzu County
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  10. 11th December 2013, 08:40 AM #10
    PhilipA
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    I have a couple of beefs with Optima.
    I have only had one yellow top back about 20 years ago when the were eyewateringly expensive at almost $500 then!
    It lasted 3 years before leaking at the negative teminal.
    The other beef is that for their size they have low capacity.

    The spec of the AGM doesn't thrill me much either.
    First the max stated amp charge at 10 amps is quite low for the battery size, although in my experience thay can take full alternator current for a while no problems.
    The other is that the battery is quite light for the stated capacity at AFAIR 27KG. I would think it is more likely to be about 90AH.

    Have a check of other AGMs and compare the dimensions and weight with that one.
    Regards Philip A
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