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Hello everyone, I know how hard this will be to answer as the variables are infinate..............BUT!.
Am looking to fit dual batteries to my rig as I have killed the current N70ZZ and its past its used buy date anyway, we have just bought a weaco 50ltr fridge freezer,DVD player, TFT screen, two hella spotties and looking to fit a ARB winch bar and a winch in the next couple of months once the bank balance resufaces . We have been advised while ringing around town today, to fit a dual battery system (more goodies) and have one cranking battery and one deep cycle battery. Apart from the mind bending logistics of things we have to move in the engine bay (which I have measured up and can do) We know we can fit two batteries the same dims as the above unit, does any one have any ideas as to which brands are best for both the dual system and which batteries to get, and more specificly how long we can expect to run the fridge for while out camping without needing a recharge.
How long the fridge will run from the deep cycle battery depends on how much power it draws and what battery you get, not to mention how hot it is outside at the time - if it's hotter, the fridge will need to run more to stay cool.
A deep-cycle battery will work well for your fridge but is unsuitable for your winch. The best approach is really hard to decide - three batteries is best - two for cranking, one deep-cycle.
Jaycar and Dick Smith do a kit for dual batteries that's suitable for a deep-cycle secondary, but they are fairly complex to assemble. My old man made a few up and was selling them, I'm not sure whether he has any left. He is between houses at the moment - sold up his Qld place and can't move into his new place down in Melbourne yet - so they may be in a box somewhere. PM me if you're interested, they were about $130 I think.
I ran an exide extreme (think was a 650cca)for five years as an aux battery...usind a pirahna 100amp isolator...lasted five years before I changed cars..Ran fridge and stereo all day in 38deg temp and batt was only starting to struggle the next morining..
Just my 2 cents worth
I ran an exide extreme (think was a 650cca)for five years as an aux battery...usind a pirahna 100amp isolator...lasted five years before I changed cars..Ran fridge and stereo all day in 38deg temp and batt was only starting to struggle the next morining..
Just my 2 cents worth
Winch requires heaps and heaps of current (200 amps+)relatively quickly, which would kill a deep cycle battery which are designed to supply low current over along time.
Winches work better with high CCA (cold cranking amps) batteries.
+dj_hansen+ wrote:Winch requires heaps and heaps of current (200 amps+)relatively quickly, which would kill a deep cycle battery which are designed to supply low current over along time.
Winches work better with high CCA (cold cranking amps) batteries.
Would kill a typical deep cycle battery however not an automotive deep cycle battery. Take a look at deep cycle batteries from Trojan, Optima or Odyssey, they are designed for winching and cranking.
Weekdays - Prado GXL D4D with some stuff
Weekends - Mav shorty with lots of stuff
+dj_hansen+ wrote:True, but i would class that as a dual purpose battery, rather than just a deep cycle.
To me; deep cycle - low CCA but high AH rating, cranking - high CCA with lower AH rating...
Then you get the likes of optima yellow top or the orbital blue top which are both...
Each to their own, no disrespect
None taken
I have a Rotronics dual battery system. Currently I have an RACV starting battery and a Trojan 27TMH aux, remember the Rotronics systems uses the aux for winching. I can't decide between 2 Optima Yellow tops or 2 Odyssey PC1700s.
Weekdays - Prado GXL D4D with some stuff
Weekends - Mav shorty with lots of stuff
+dj_hansen+ wrote:True, but i would class that as a dual purpose battery, rather than just a deep cycle.
To me; deep cycle - low CCA but high AH rating, cranking - high CCA with lower AH rating...
Then you get the likes of optima yellow top or the orbital blue top which are both...
Each to their own, no disrespect
None taken
I have a Rotronics dual battery system. Currently I have an RACV starting battery and a Trojan 27TMH aux, remember the Rotronics systems uses the aux for winching. I can't decide between 2 Optima Yellow tops or 2 Odyssey PC1700s.
Optimas are over priced and Odysseys are over rated.
Why don't you give an AGM battery from other manufacturers a go. After all, that's all Optimas and Odysseys are, just in strange shapes and sizes.
Try www.absorbedpower.com , I think I've decided that's what I'll use. Big CCAs as well as good AH ratings at prices that shit all over the other two.
+dj_hansen+ wrote:True, but i would class that as a dual purpose battery, rather than just a deep cycle.
To me; deep cycle - low CCA but high AH rating, cranking - high CCA with lower AH rating...
Then you get the likes of optima yellow top or the orbital blue top which are both...
Each to their own, no disrespect
None taken
I have a Rotronics dual battery system. Currently I have an RACV starting battery and a Trojan 27TMH aux, remember the Rotronics systems uses the aux for winching. I can't decide between 2 Optima Yellow tops or 2 Odyssey PC1700s.
Optimas are over priced and Odysseys are over rated.
Why don't you give an AGM battery from other manufacturers a go. After all, that's all Optimas and Odysseys are, just in strange shapes and sizes.
Try www.absorbedpower.com , I think I've decided that's what I'll use. Big CCAs as well as good AH ratings at prices that shit all over the other two.
Interesting I wasn't aware of AGM. What model are you fitting?
Weekdays - Prado GXL D4D with some stuff
Weekends - Mav shorty with lots of stuff
+dj_hansen+ wrote:True, but i would class that as a dual purpose battery, rather than just a deep cycle.
To me; deep cycle - low CCA but high AH rating, cranking - high CCA with lower AH rating...
Then you get the likes of optima yellow top or the orbital blue top which are both...
Each to their own, no disrespect
None taken
I have a Rotronics dual battery system. Currently I have an RACV starting battery and a Trojan 27TMH aux, remember the Rotronics systems uses the aux for winching. I can't decide between 2 Optima Yellow tops or 2 Odyssey PC1700s.
Optimas are over priced and Odysseys are over rated.
Why don't you give an AGM battery from other manufacturers a go. After all, that's all Optimas and Odysseys are, just in strange shapes and sizes.
Try www.absorbedpower.com , I think I've decided that's what I'll use. Big CCAs as well as good AH ratings at prices that shit all over the other two.
Interesting I wasn't aware of AGM. What model are you fitting?
As stated earlier, the "AGM" technology is in both the above mentioned batteries. Odysseys are standard AGM and Optimas are spiral cell AGMs but both are way overpriced. The thing I like about the Absorbed brand is they are in standard car sizes (and good price). I will be using the GT12-90c as it is the size of a standard N70 style battery that will fit in my tray, still cranks 700cca but also has a full 90ah.
RoldIT wrote:As stated earlier, the "AGM" technology is in both the above mentioned batteries. Odysseys are standard AGM and Optimas are spiral cell AGMs but both are way overpriced. The thing I like about the Absorbed brand is they are in standard car sizes (and good price). I will be using the GT12-90c as it is the size of a standard N70 style battery that will fit in my tray, still cranks 700cca but also has a full 90ah.
+dj_hansen+ wrote:True, but i would class that as a dual purpose battery, rather than just a deep cycle.
To me; deep cycle - low CCA but high AH rating, cranking - high CCA with lower AH rating...
Then you get the likes of optima yellow top or the orbital blue top which are both...
Each to their own, no disrespect
None taken
I have a Rotronics dual battery system. Currently I have an RACV starting battery and a Trojan 27TMH aux, remember the Rotronics systems uses the aux for winching. I can't decide between 2 Optima Yellow tops or 2 Odyssey PC1700s.
I just decided on a Century Overlander dual purpose battery. Cross between a deep cycle and cranking with 700cca. $180 each can get you two for the price of a yellow top Optima. I got mine from Battery Word in Balwyn and he also said that they are not a true deep cylce. If you wish to go bush with a fridge etc than there are better deep cycle options but not recommended for winching.
Also the Overlander pops straight into the GQ battery tray where as the optima yellow top did not have a choice of + and - positions.
RoldIT wrote:As stated earlier, the "AGM" technology is in both the above mentioned batteries. Odysseys are standard AGM and Optimas are spiral cell AGMs but both are way overpriced. The thing I like about the Absorbed brand is they are in standard car sizes (and good price). I will be using the GT12-90c as it is the size of a standard N70 style battery that will fit in my tray, still cranks 700cca but also has a full 90ah.
Emma Chisit?
$260
Weekdays - Prado GXL D4D with some stuff
Weekends - Mav shorty with lots of stuff
+dj_hansen+ wrote:True, but i would class that as a dual purpose battery, rather than just a deep cycle.
To me; deep cycle - low CCA but high AH rating, cranking - high CCA with lower AH rating...
Then you get the likes of optima yellow top or the orbital blue top which are both...
Each to their own, no disrespect
None taken
I have a Rotronics dual battery system. Currently I have an RACV starting battery and a Trojan 27TMH aux, remember the Rotronics systems uses the aux for winching. I can't decide between 2 Optima Yellow tops or 2 Odyssey PC1700s.
I just decided on a Century Overlander dual purpose battery. Cross between a deep cycle and cranking with 700cca. $180 each can get you two for the price of a yellow top Optima. I got mine from Battery Word in Balwyn and he also said that they are not a true deep cylce. If you wish to go bush with a fridge etc than there are better deep cycle options but not recommended for winching.
Also the Overlander pops straight into the GQ battery tray where as the optima yellow top did not have a choice of + and - positions.
cheers
Eric
Century Overlanders are definately NOT a "dual purpose" battery, they are a flooded cranking (starting) battery only. That said, they will run a fridge for a long time before showing problems but cycling a starting battery will kill it. You may still get a couple of years out of it but if you run it down real low, often, you willl kill it quick. The only advantage of the overlanders are they are constructed with high vibration resistance in mind.
AGM batteries are the only batteries you can consider a true "dual purpose" battery. They are designed for cycling use but also, due to there construction also have excellent CCAs.
+dj_hansen+ wrote:True, but i would class that as a dual purpose battery, rather than just a deep cycle.
To me; deep cycle - low CCA but high AH rating, cranking - high CCA with lower AH rating...
Then you get the likes of optima yellow top or the orbital blue top which are both...
Each to their own, no disrespect
None taken
I have a Rotronics dual battery system. Currently I have an RACV starting battery and a Trojan 27TMH aux, remember the Rotronics systems uses the aux for winching. I can't decide between 2 Optima Yellow tops or 2 Odyssey PC1700s.
I just decided on a Century Overlander dual purpose battery. Cross between a deep cycle and cranking with 700cca. $180 each can get you two for the price of a yellow top Optima. I got mine from Battery Word in Balwyn and he also said that they are not a true deep cylce. If you wish to go bush with a fridge etc than there are better deep cycle options but not recommended for winching.
Also the Overlander pops straight into the GQ battery tray where as the optima yellow top did not have a choice of + and - positions.
cheers
Eric
Century Overlanders are definately NOT a "dual purpose" battery, they are a flooded cranking (starting) battery only. That said, they will run a fridge for a long time before showing problems but cycling a starting battery will kill it. You may still get a couple of years out of it but if you run it down real low, often, you willl kill it quick. The only advantage of the overlanders are they are constructed with high vibration resistance in mind.
AGM batteries are the only batteries you can consider a true "dual purpose" battery. They are designed for cycling use but also, due to there construction also have excellent CCAs.
Cool, Dual purpose were the wrong words to use.
I have no intention of cycling it. Winching only. The impression I got when it was sold to me was that it might take a bit more abuse than a normal cranking battery but not to be used as a cycling battery.
I've got an exide extreme as a second battery. The dude i bought it off assured me it was the best of both worlds (dual purpose) and it carries both amphour rating and cca rating. Its what ARB use on all of their kits apparently.
1989 Ford Maverick Turbo Diesel Tourer
4" spring lift 2" body lift
33" MT/R's
the fridge will draw aprox 4 amps/per hour at worse conditions....hot weather and open closing all the time. your fridge will also stop when ur battery is gettin low.
so work out ur deep cycle battery amp/hrs
thast how long till flat.
My thought on batterys is the new sealed OPTIMA batteries. they are awsome.. can recharge many more times than any others and are the quickest to charge back to full capicty
piranha or GSL isolators are good for dual batterys... piranha being a bit smarter than gsl but both we fitted a few times a week at work.
. We have been advised while ringing around town today, to fit a dual battery system 
(more goodies) and have one cranking battery and one deep cycle battery. Apart from the mind bending logistics of things we have to move in the engine bay (which I have measured up and can do) We know we can fit two batteries the same dims as the above unit, does any one have any ideas as to which brands are best for both the dual system and which batteries to get, and more specificly how long we can expect to run the fridge for while out camping without needing a recharge.
- two for cranking, one deep-cycle.
