24v power on leisure batteries?

 
 
 
 
 
 
AutoRollerCW
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24v power on leisure batteries?

 ·  Posted: 08.06.2015  ·  #1
Hi everyone. I'm new to the whole caravan/Campervan scene so this question may sound silly. Is it possible to have 24v electricity from your leisure battery by putting 12v leisure batteries in series??
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Re: 24v power on leisure batteries?

 ·  Posted: 08.06.2015  ·  #2
Quote by AutoRollerCW

Hi everyone. I'm new to the whole caravan/Campervan scene so this question may sound silly. Is it possible to have 24v electricity from your leisure battery by putting 12v leisure batteries in series??


Yes it is possible to wire them in series, but why would you want to do that? Nearly everything that you will be using is 12v and you will probably fry your Control panel,water pump etc.
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Re: 24v power on leisure batteries?

 ·  Posted: 08.06.2015  ·  #3
.... and how would you charge them if they are connected in series?
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Re: 24v power on leisure batteries?

 ·  Posted: 08.06.2015  ·  #4
Quote by CHAUSSON

Quote by AutoRollerCW

Hi everyone. I'm new to the whole caravan/Campervan scene so this question may sound silly. Is it possible to have 24v electricity from your leisure battery by putting 12v leisure batteries in series??


Yes it is possible to wire them in series, but why would you want to do that? Nearly everything that you will be using is 12v and you will probably fry your Control panel,water pump etc.


The van came with a 24v tv and I just thought that if I done something like that it would allow the kids to watch tv as we were travelling or not on mains hook up anywhere. I wasnt aware it could damage the pump etc. I just presumed if everything ran from mains hook up that there wouldnt be an issue.
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Re: 24v power on leisure batteries?

 ·  Posted: 08.06.2015  ·  #5
Quote by Scanner

.... and how would you charge them if they are connected in series?


tbh I hadnt really thought that far ahead. I just said Id pop on here and get the advice of people that know what they are talking about.
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Re: 24v power on leisure batteries?

 ·  Posted: 08.06.2015  ·  #6
Quote by AutoRollerCW



The van came with a 24v tv


Do you mean a 240V TV?

If its 240 then it could be run of an inverter.
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Re: 24v power on leisure batteries?

 ·  Posted: 08.06.2015  ·  #7
AutoRollerCW
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Re: 24v power on leisure batteries?

 ·  Posted: 08.06.2015  ·  #8
Quote by Ally


Do you mean a 240V TV?

If its 240 then it could be run of an inverter.


Sorry it must be 240V its a typical domestic small screen tv.

Theres an inverter behind the passenger seat and I think it is connected to the engine battery.

Theres a three pin plug on the side of it. Would this allow it to run?
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Re: 24v power on leisure batteries?

 ·  Posted: 08.06.2015  ·  #9
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Re: 24v power on leisure batteries?

 ·  Posted: 08.06.2015  ·  #10
Quote by AutoRollerCW


Theres a three pin plug on the side of it. Would this allow it to run?


If it's 240v then yes. :)
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Re: 24v power on leisure batteries?

 ·  Posted: 08.06.2015  ·  #11
Quote by Ally

Quote by AutoRollerCW


Theres a three pin plug on the side of it. Would this allow it to run?


If it's 240v then yes. :)


Perfect I'll give it a try this evening. Thanks for your help :up:
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Re: 24v power on leisure batteries?

 ·  Posted: 08.06.2015  ·  #12
Quote by AutoRollerCW

Quote by tony2phones

Have you checked if the TV is committed 24v or if a 12~24v unit? you can get a 12v to 24v step up regulator for under about £20 http://www.ebay.co.uk/itm/2pcs-Voltage-Booster-Power-DC-Converter-12V-To-24V-3A-72W-Step-Up-Regulator-/111685456330?pt=LH_DefaultDomain_3&hash=item1a00f8d1ca


How would I check this?


The TV will have a rating plate on the back somewhere that carries the serial number and lots of other information inc. the operating voltage.

BUT there is an easier way - what sort of power cord does the TV have?
Is it one that ends with a standard 3 pin plug or is it one that plugs into the back of the set and has a cigar lighter plug on the other end.

If 1 it is a mains (240v) TV if 2 then it is a 12v (or just possibly 24v - but very unlikely) TV that will run straight off the leisure battery.

Beware of running anything like an inverter straight off the starter battery as they use a lot of power and can flatten a battery very quickly - you do not want to keep flattening a starter battery.
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Re: 24v power on leisure batteries?

 ·  Posted: 08.06.2015  ·  #13
Quote by Scanner

Quote by AutoRollerCW

Quote by tony2phones

Have you checked if the TV is committed 24v or if a 12~24v unit? you can get a 12v to 24v step up regulator for under about £20 http://www.ebay.co.uk/itm/2pcs-Voltage-Booster-Power-DC-Converter-12V-To-24V-3A-72W-Step-Up-Regulator-/111685456330?pt=LH_DefaultDomain_3&hash=item1a00f8d1ca


How would I check this?


The TV will have a rating plate on the back somewhere that carries the serial number and lots of other information inc. the operating voltage.

BUT there is an easier way - what sort of power cord does the TV have?
Is it one that ends with a standard 3 pin plug or is it one that plugs into the back of the set and has a cigar lighter plug on the other end.

If 1 it is a mains (240v) TV if 2 then it is a 12v (or just possibly 24v - but very unlikely) TV that will run straight off the leisure battery.

Beware of running anything like an inverter straight off the starter battery as they use a lot of power and can flatten a battery very quickly - you do not want to keep flattening a starter battery.


The lead has a 3 pin plug and is wired directly into the tv so Its 240 for sure. I get what you mean about flattening the battery alright. Would it be safe enough to use while the engine is running and charging the battery that the inverter is connected to?
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Re: 24v power on leisure batteries?

 ·  Posted: 08.06.2015  ·  #14
Quote by AutoRollerCW

I get what you mean about flattening the battery alright. Would it be safe enough to use while the engine is running and charging the battery that the inverter is connected to?


Depends how many amps the tv is drawing and how big the inverter is, also how good an inverter it is also.
I know plenty of Motorhomers who run 240v tv's using an inverter, usually around a 300 watt inverter and have no issues with flat batteries.

If you are moving every day or so then you should be ok, if you plan to stay in the same spot for a few days with no EHU then you batteries will fail.

Of course it will also depends on what else you are using your batteries for, how many leisure batteries you have, what AHR they are.
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