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Subject Topic: hi there help pls join 110 battery to 85 Post Reply Post New Topic
PersonGAYNOR68
28/9/2011 at 6:44pm
 Location: south yorkshire
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can i join 110 battery to 85 battery so i can everything through them an not have v on its own an lights/pump ect through other one ??


PersonDaveCoaches
28/9/2011 at 6:53pm
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Not sure what you mean but it is possible to connect two batteries together, positive to positive and negative to negative if that's what you mean. In practice though I would prefer to swap them over when one goes flat so that I have a better idea of my power usage and if I change a battery over I know I need to reduce my consumption. You can get the flat battery recharged while using the other one too rather than get two flat batteries.

Apparently, and I don't know how accurate this is, connecting a 110 ah battery and an 85 ah battery will not give 195 ah either, although technically it should.


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Persondavewakefield
28/9/2011 at 7:13pm
 Location: Chesterfield Derbyshire
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If you Join Two Batterys Together You Will Get 24 Volts


Personbobajob59
28/9/2011 at 7:29pm
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You will only get 24 volts if you connect in series. Connect in parallel and you will have 12v and incresed amp hours

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


Persons66614a
28/9/2011 at 8:11pm
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You should really have the same ah batteries as well if joining them together. so 2 x 110ah or 2 x 85ah.

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Mark


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PersonG7ACU
28/9/2011 at 8:43pm
 Location: West Mids
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Do I assume you don't use EHU at all and reliant on the batteries?

Although it's possible, I'd avoid doing unless both batteries are the same capacity (as mentioned). You'll have an imbalanced discharge for one of the batteries and it may drop too deep to recover properly and fail early.

If you do need two seperate batteries, I'd continue using them as you are.

-------------
Paul

Every day's a school day!


PersonGAYNOR68
28/9/2011 at 8:46pm
 Location: south yorkshire
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yea we on no ehu site, thx for any help


PersonFrancophile1947
28/9/2011 at 8:55pm
 Location: Norwich
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I've got a 110A/h and 85A/h connected in parallel and had no problems using them together.

-------------
Cheers
John


PersonGAYNOR68
28/9/2011 at 8:57pm
 Location: south yorkshire
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thx francophile i need to run tv. pump, lights, an radio will this be ok ??


Personmichael
29/9/2011 at 9:25am
 Location: Lancashire
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http://www.marxrv.com/12volt/12volt.htm

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the only silly question is the one you do not ask.



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