BATTERY CCA

Submitted: Sunday, Apr 18, 2004 at 12:59
ThreadID: 12157 Views:1636 Replies:7 FollowUps:3
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Hi fella's, looking for a battery to use as secondary in trailer, needs to be same as the batt in car which is 750 cca or can i use deep cycle, it need to be able to start the car in case of main batt failure. Set will be like dual batt system.

Baz.

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Reply By: ThePublican - Sunday, Apr 18, 2004 at 13:19

Sunday, Apr 18, 2004 at 13:19
Baz, try www.uuhome.de/william.darden/carfaq.htm long read but any and all anyone would want to know about batteries, easier than trawling through the archives.
AnswerID: 54807

Follow Up By: Baz (NSW) - Sunday, Apr 18, 2004 at 15:14

Sunday, Apr 18, 2004 at 15:14
Thanks Publican, thats a lot to get your brain around, aspecially when your not electrically minded. good info though, i'll print it and read it through properly.

Cheers Baz.
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FollowupID: 316501

Reply By: Member -Bob & Lex (Sydney) - Sunday, Apr 18, 2004 at 16:30

Sunday, Apr 18, 2004 at 16:30
Baz, you can use either, the normal battery will charge quicker & the deep cycle will hold charge longer or so i'm led to believe from past posts. The 1 in our camper is a sealed 100ah with the same ccr as the 1 in the patrol
AnswerID: 54819

Reply By: Member - Nigel (QLD) - Sunday, Apr 18, 2004 at 18:30

Sunday, Apr 18, 2004 at 18:30
I have a powerdive 108 AH AGM deep cycle battery in my trailer - it's only rated for 500 CCA, but that's enough to start my ST3 Petrol Patrol if it has too.

Biggest advantage of the AGM deep cycle is they recharge quicker than a starting battery, and you can flatten then further than a standard deep cycle.

The bloke from powerdive in brissy said they also sell AGM's with higher CCA in the same size, but they don't seem to list them on their website.
AnswerID: 54835

Follow Up By: Baz (NSW) - Sunday, Apr 18, 2004 at 18:49

Sunday, Apr 18, 2004 at 18:49
Thanks Bob and Nigel, it's the 750 CCA of the Explorer, after looking around for a battery today the biggest we could find was 720 cca, it's close but after reading the info on the web site that Publican put me on to i think getting a batt that is 750 or higher is a good idea, very interesting read and helpful.

Baz.
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FollowupID: 316530

Reply By: Nino & Kerry (VIC) - Sunday, Apr 18, 2004 at 21:39

Sunday, Apr 18, 2004 at 21:39
Baz
I,m no expert on batteries but i,ve just fitted one to my camper. I was advised to use a "normal" battery and not a deep cycle as like most people we only get to use our camper two or three weeks ayear and a deep cycle would'nt get discharged and charged enough, and therefore probably would fail premturely. A normal battery would be fine and should last years...

Nino..
AnswerID: 54886

Follow Up By: -OzyGuy- - Saturday, Apr 24, 2004 at 14:47

Saturday, Apr 24, 2004 at 14:47
you state that 'you are no expert on batteries' however if you buy a decent Deep Cycle battery you will get better servive when out in the bush from it.
when not using it and like any battery it should be left on a trickle charger and kept in a fully charged state, I actually run mine down to about 4 volts occasionly and then put them on Boost charge for a few days then back onto the trickle charge state.
it works for me.
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FollowupID: 317606

Reply By: Member - Jiarna (SA) - Sunday, Apr 18, 2004 at 23:41

Sunday, Apr 18, 2004 at 23:41
Hi Baz
I have a truck/tractor battery mounted on the trailer ("surplus" from my brother's farm), don't know what CCA rating but it's bigger than the vehicle's. I have it wired to the accessory circuit through the trailer plug, with a relay to isolate it when the ignition switch is off. Has worked well for a year so far. If the vehicle battery goes flat, I can use jumper leads to start from the trailer battery. The trailer battery is used to power a Narva spread beam spottie to light up the campsite - works a lot better than the gas lamp I used to use.
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AnswerID: 54907

Reply By: phil - Monday, Apr 19, 2004 at 10:52

Monday, Apr 19, 2004 at 10:52
For an auxillary battery you are more interested in the amp/hour capacity at lower currents. Most batteries quote a figure for RC which is the number of minutes it can supply 25amp and some quote the amp/hour capacity at a much lower current. These relate much better to how long you can run a fridge etc.

Exide Extreme is a popular compromise battery and not too expensive. 80AH for the N70 size.

Phil
AnswerID: 54940

Reply By: Baz (NSW) - Monday, Apr 19, 2004 at 11:27

Monday, Apr 19, 2004 at 11:27
Thanks everyone for your help, i think i have it sorted now, all i have to do now is buy it and set it up.

Baz.
AnswerID: 54942

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