6v or 12v batteries (1 Viewer)

Patrick

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What’s the view's over this?

I am looking at putting 2 x 6volt Trojan’s on my van rather than replacing the 12 volts.
 

Bryan

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Jul 19, 2007
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2 x 6v trojans = 1 12v battery.

What amps are the trojans and what amps are the 12v you are replacing?
 
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Patrick

Patrick

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2 x 6v trojans = 1 12v battery.

What amps are the trojans and what amps are the 12v you are replacing?

Hi Bryan!

getting rid of the 2 x 220amp elcsol

want to replace with 2 x T105 Trojans.

T105 6 Volt. 225ah @ 20HR
185ah @ 5HR
Reverve Capacity in minutes :- @25 amps - 447
@75 amps - 115

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MikeandCarolyn

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OK-tell me the advantages-are you getting more in a smaller space or the same in a smaller space ?
I've been looking at batteries lately and couldn't understand the numbers with Trojan :Doh:

Mike.
 

dshague

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i have a agm longlife 85 amp squadron battery fitted .squadron are not trading now ut there are some of there 6v batteries on ebay .
are you saying you can put two 6v and run with 12v .ifso sounds good to me
help from tec man required .:Eeek:
 
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Patrick

Patrick

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OK-tell me the advantages-are you getting more in a smaller space or the same in a smaller space ?
I've been looking at batteries lately and couldn't understand the numbers with Trojan :Doh:

Mike.

Hi Mike,

I don't understand the numbers either mate!
I have just read so many good reviews about these batteries. My Elecsol that cost £ 500 squid are rubbish and one of them has gone dead after just 2 years. the Trogan's will give me the same 440 amp but they are true deep cycle. i was told 2 x 6volt would give longer performance than 2 x 12volt.

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DESCO

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Don't know how true but have always been told by people I respect for their knowledge that 2x6volt is the better way to go.


Dave :thumb::thumb:
 
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Patrick

Patrick

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i have a agm longlife 85 amp squadron battery fitted .squadron are not trading now ut there are some of there 6v batteries on ebay .
are you saying you can put two 6v and run with 12v .ifso sounds good to me
help from tec man required .:Eeek:

Yer, you connect them in sequence instead of in parallel
 

lunarman

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My understanding is that connecting batteries in series, as you would have to do with the 6v to give 12 v, maintains the capacity.

Thus 2 trojans in series would give you 225 amp hours capacity. Your 2 Ecosel 12v in parallel give you 440 amp hours capacity.

Are you not halving your power availability.

lunarman

edit see here

http://www.zbattery.com/Connecting-Batteries-in-Series-or-Parallel

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Patrick

Patrick

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My understanding is that connecting batteries in series, as you would have to do with the 6v to give 12 v, maintains the capacity.

Thus 2 trojans in series would give you 225 amp hours capacity. Your 2 Ecosel 12v in parallel give you 440 amp hours capacity.

Are you not halving your power availability.

lunarman

edit see here

http://www.zbattery.com/Connecting-Batteries-in-Series-or-Parallel

Yes i will be but getting a true 225 would be better than i felt i ever got from the Elecsols
 

Blisters

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Elecsol give a 5 year guarantee, so if yours has died after just 2 years, it might be worth having a word. Maybe it was a dodgy battery from the start, has we have 2, both 3 years old now and going strong.

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dazzer

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My understanding of it is that the 6v bats will give you a true 225ah as you can almost run them flat without damaging them. Standard 12v bats shouldnt be allowed to go below 50% capacity or it knackers them.

Or so im lead to believe, personally id go with the 6 volt if youve got the space and weight capacity spare.
 

Bryan

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Jul 19, 2007
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Hi Pat,

2 x 6v 225 ah batteries will give you 225 ah total
2 x 12v 220 ah batteries will give you 440 ah total

IIRC the trojans can be discharged to 20% before flat and the 'normal' batteries 50%

So...

2 x 6v, 225ah batteries gives 225 time 80% = 180 amp hours
2 x 12v, 220ah batteries gives 440 times 50% = 220 amp hours

Trojans are true deep cycle batteries so they should handle being deep discharged and recharged better.

HTH

Bryan
 

ehuplad

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What’s the view's over this?

I am looking at putting 2 x 6volt Trojan’s on my van rather than replacing the 12 volts.


Hi Patrick,

We have 2 x 6v Trojan 105 batteries, had them on the RV we replaced 3 12v 110amp batteries, we have now also swopped them to the fiver, I personally think they are the best you can get, true deep cycle and you can get them at a decent price if you shop around.

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Patrick

Patrick

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Elecsol give a 5 year guarantee, so if yours has died after just 2 years, it might be worth having a word. Maybe it was a dodgy battery from the start, has we have 2, both 3 years old now and going strong.

I will give them a call on Monday Graham; not very optimistic though, have been reading a lot about this company when it comes to there 5 year guarantee, it can take months of arguing with them.

hope your all well?
 

Terry

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Hi Patrick if I was you I would go for the cheapest FLA battery's I could find :thumb:
Try
http://www.olearymotorhomes.co.uk/
or KNOLBECK CARAVANS 01226753956
BOTH HAVE CHEAP PRICES FOR BATTERY'S BUT YOU WILL HAVE TO RING
terry
 
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What’s the view's over this?

I am looking at putting 2 x 6volt Trojan’s on my van rather than replacing the 12 volts.

Hi there,
we have 2 x 6 volt Trojan batteries. They are brilliant . We were advised to put them on because we have the Webasto diesel heating , which is also great in the winter . But not if you like rallying. As it soon ate the batteries.
Remember that you have to have them in an outside locker or have them in a sealed battery box vented to the outside. As they gas off when being charged. Ours are inside , with 2 venting tubes to the outside .
We have upgraded the on board battery charger , to a 50 amp 4 stage charger. So in the winter months we can plug the Honda in and give them a fast charge in under an hour. If needed.
We have found that the really hold the charge for a lot longer than standard leisure batteries. We can easily go 2 full days/ weekend with the Webasto , TV's , and every other electric gadget teenagers love to use:Doh:
Bev
( with a little help from Ralph on the techi bit:Blush: :ROFLMAO:)
P.S ,
OH and even better , we had our 2 Trojans given :thumb:

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Patrick

Patrick

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Update on the Elecsol battery saga:

I put both batteries on a mains charger for three days and they are now showing 14 on my control unit. When I tested them with the hydrometer it only showed as 125 just in the green area.

I have put of phoning Elecsol until Iam sure they do have a problem. I believe that carbon-fiber batteries do show a lower level on a hydrometer than ordinary lead plate batteries.:Doh:

Any thoughts on the above ??????

Has anyone fitted a 50 Amp Sterling battery 2 battery charger…what do you think of the kit???????????
 
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Patrick

Patrick

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Hi Patrick if I was you I would go for the cheapest FLA battery's I could find :thumb:
Try
http://www.olearymotorhomes.co.uk/
or KNOLBECK CARAVANS 01226753956
BOTH HAVE CHEAP PRICES FOR BATTERY'S BUT YOU WILL HAVE TO RING
terry

had a look on olearys site, nothing for batterys. Have seen some good deals on Flebay though!

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Patrick

Patrick

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Nov 18, 2007
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Update on the Elecsol battery saga:

I put both batteries on a mains charger for three days and they are now showing 14 volts on my control unit.
When I tested them with the hydrometer it only showed as 125 just in the green area.
I believe that carbon-fiber batteries do show a lower level on a hydrometer than ordinary lead plate batteries.

I have put of phoning Elecsol until Iam sure they do have a problem. :Doh:

Any thoughts on the above ??????
bump
 

Terry

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had a look on olearys site, nothing for batterys. Have seen some good deals on Flebay though!

Hi Patrick, you have to phone them :thumb:It is a proper Aladin's cave :thumb: and as such they only display ( web ) about a quarter of what they stock :ROFLMAO: They get just about anything M/H related, but chances are they will already have it :ROFLMAO:
terry
PS my thought's on battery's are they all die, some quicker than others regardless of how much you pay ! All my research on battery's point to flooded lead acid giving the best value for money - unless you want to pay what I call snob / bragging factor.Ask your self how many posts you have read where my expensive battery has died after 2 yrs ? Well a cheapo one should last longer than that. My cheapo one is 3 yrs old, still going strong and owes me very little.
 

Geo

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Hi Patrick, you have to phone them :thumb:It is a proper Aladin's cave :thumb: and as such they only display ( web ) about a quarter of what they stock :ROFLMAO: They get just about anything M/H related, but chances are they will already have it :ROFLMAO:
terry
PS my thought's on battery's are they all die, some quicker than others regardless of how much you pay ! All my research on battery's point to flooded lead acid giving the best value for money - unless you want to pay what I call snob / bragging factor.Ask your self how many posts you have read where my expensive battery has died after 2 yrs ? Well a cheapo one should last longer than that. My cheapo one is 3 yrs old, still going strong and owes me very little.
:thumb:

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thehutchies

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I might have posted this before, :RollEyes: , but I would recommend these batteries to anyone:

Link Removed

I currently have nine of these batteries on three different vehicles, two lots getting very hard use and one lot with typical motorhome use.
The newest are a couple of months old and the oldest about two years.

I have no complaints whatsoever with their performance and the price is very good.
I just search for the cheapest on the internet and buy from there.
 

Terry

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Crieky:Eeek: hutchies, although they are nice branded batteries :thumb: I was thinking more like 130 amp hrs for fifty quid tops :ROFLMAO: Out of curiosity next time I pass knolbeck I will see what price they are - about 6 mths since I priced some up :winky:
terry
 

thehutchies

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I was thinking more like 130 amp hrs for fifty quid tops
terry

Ah, Terry, you mean those Cambodian batteries made from pennies and vinegar!

In the olden days, I qualified as an electrical engineer. More recently, I did a Physics degree with a special interest in electrical theory.

However, when I go to buy a leisure battery, I'm as much in the dark as anyone about what a particular battery can do, without a test facility to dismantle and test, say, fifty of the batteries I'm looking at.

I was looking at various batteries recently, from the same manufacturer, and as far as I could tell, the leisure batteries were different from the starting batteries only because they had a picture of a caravan stuck on the side.

I have a permanent marker pen here and I'm thinking that if I go and write '400Ah, deep cycle' on each of my leisure batteries, I'll never have to worry about losing power again! :thumb:

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Patrick

Patrick

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I think i will go with what terry says...just get cheepos and replace them as needed.

Thanks to everyone who replied:thumb:
 

bobandjanie

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Hi, we fitted a pair of the LUCAS 113AH ULTRA DEEP CYCLE LEISURE BATTERIES , and very pleased with them.:thumb:


They can almost keep up with Jane's usage of power.:winky::ROFLMAO::ROFLMAO::ROFLMAO: But the more slack I give her the more she uses, bit like the water, if I have to carry it a long way she doesn't use that much, but park next to a tap she can use thousands of gallons.:winky::roflmto: Bob.

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