 | Home > Puma (Tdci) > Socket 1692 behind rear RH speaker |
 
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| munch90 Member Since: 26 Oct 2013 Location: guildford Posts: 3558  
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think I know what socket you mean .. if its the one that if you looked at from the end its tee shaped . if so don't think I would run 2 feeds from that (12v & ign 12v) looks a bit thin to me
not really a answer but I ran 1 fused heavy cable from battery to back through conduit then put junction box and split cable one for 12v permanent and one 12v ign switched by relay (switching feed taken from rear wiper ign live) to be honest I don't like using any wires that are in the loom because if you do get a cock up and burn something out that's your loom scrap .. prefer to only take switching feeds from main loom wires |
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7th Nov 2013 1:52pm |
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| OleDave Member Since: 19 Oct 2013 Location: CARDIFF Posts: 175  
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HI munch90. many thanks for your reply, originally I was considering almost exactly what you have done and run a fused supply from the battery for both the feed to the fridge and onboard caravan battery.
My thoughts were the fridge needs a constant 12v supply but only pulls around 4 amps, if that plug is rated at 20 amps it is well over for that need. The battery amps I am unsure of, but again it would have to be a constant supply but routed through a split charge relay, and again I imagine with a fully charged caravan battery it would only pull a low amperage and just enough to keep it topped up as there is little or no load on the caravan battery when being towed. On my previous vehicle the battery supply went through a split charge relay which monitors both the vehicle and caravan battery and balances the charge to both, if the caravan battery is fully charged it ceases supply to it altogether. I have read that the connection behind the panel is fused at 20 amp which is well above the amps required certainly for the fridge supply and I suspect more than adequate for a trickle charge to the battery to keep it topped up, but being usure what that supply was originally intended for is the reason for asking. I absolutely agree in that you have to be so careful where you take a supply from, having worked in the automotive trade before retirement you would not believe what people wire their sockets into, I have even seen power supplies taken from the rear boot lighting circuit!! Well again many many thanks for your reply Regards Ole Dave |
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7th Nov 2013 2:42pm |
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| munch90 Member Since: 26 Oct 2013 Location: guildford Posts: 3558
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yes correct .but for caravan socket is supposed to have supply of 10a per cable (2x10a ). yes still only 20a but I like to edge on the side of caution .. like you say might not use all of it .but has caravan got a unit ( if it has you don't need split charge unit) that charges the battery or are you using just a spilt charger also what if you change caravan etc etc or run caravan from car if battery in caravan one flat or if you want to add other extras you have a heavy cable there to run from.
I always run heavy cable to front and one to rear makes adding extras easier just read your post again if the fridge is built in to caravan (ie not portable cool box style then fridge has switched supply. so fridge only runs when engine running .fridge would take long to run battery down |
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7th Nov 2013 3:02pm |
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| OleDave Member Since: 19 Oct 2013 Location: CARDIFF Posts: 175
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Hi Munch90, thanks again.
Well my caravan like me is getting on a bit, but unlike me it does have a built in zigzag charger which when the caravan is plugged into the mains the zigzag charger boosts the battery and keeps it topped up. The fridge on my caravan is fixed and as you say normally runs when the caravan is connected to the vehicle whilst running, when the engine is off the fridge power ceases, but there is the facility to switch to battery if needed, for short periods not a problem, it re starts when we plug it in to the mains or restart the vehicle engine, if you are traveling any distance in the summer you do need to keep the foodstuffs, especially frozen food cold and the fridge does that well running from the car or stand alone caravan battery, running on the caravan battery alone it would son go flat. The caravan is never ever run on battery alone, my wife being spoilt rotten has to have all her gadgets with her when we are away, hair dryer, curling tongs, TV, dvd, satellite system so she can watch Coronation Street or the like so we always pitch up on a Caravan Club site where all the amenities are available including a 16 amp power supply, the battery really for us is there for back up only in case the site loses its power, that has happened to us only once in 10 years, so charging it en route is suppose is really unnecessary but you never know do you? The idea of the battery connection I suppose is if you pitch up on a site where no power is available for mains charging, as the battery on the caravan runs down it would be possible to boost the charge and give you a few more hours/days but we are never likely to do that but who knows we could be stuck somewhere overnight traveling to a site, so its handy to be able to boost the power. Maybe I will play safe and install a separate supply as you have, and as I have done previously on other vehicles, I would still like to know why the 20 amp socket is there and what purpose its meant for? Well thats about it for the moment I am off now to have a vodka and coke before my curry. Many many thanks for your replies Regards Ole Dave |
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7th Nov 2013 5:29pm |
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| munch90 Member Since: 26 Oct 2013 Location: guildford Posts: 3558
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if like I said if it is tee shaped at the end that's the same as the plug on the back of land rover cigar lighter socket .. that's what I used it for to plug straight on back of cig lighter aux socket I fitted in rear corner panel ..
maybe land rover had idea of fitting rear aux socket too at sometime |
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7th Nov 2013 5:46pm |
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| OleDave Member Since: 19 Oct 2013 Location: CARDIFF Posts: 175
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Hi Munch90........possibly you have it nailed.
Many Thanks Ole Dave |
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7th Nov 2013 8:06pm |
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| ARC99 Member Since: 19 Feb 2013 Location: North Yorkshire Posts: 1831 
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I ran my fee from the battery back to a new type of relay (cannot remember what its called but its electronic) then to the S type socket. Running a fridge from a 12v battery alone is not good idea, I have tried it when the gas ran out and it soon pulled the battery down it needs a constant charge through the battery. Don't make old people mad.
We don't like being old in the first place, so it doesn't take much to  us off.
Richard |
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7th Nov 2013 9:02pm |
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| OleDave Member Since: 19 Oct 2013 Location: CARDIFF Posts: 175
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Hi Richard, thanks for your input.
After the discussion, where I was looking for confirmation of the reason for the supply behind the speaker I have decided to go along the route of a fused supply to the Aux socket, but prior to that through a split charge relay which monitors both the battery on the vehicle and the caravan. The split charge relay balances the power requirements to both, if the caravan needs a top up it switches and does that, if the caravan battery is fully charged it ceases to supply it, I have fitted this system previously to my last vehicle so I know it works and works well so that looks like the route again. As you say the caravan battery would die quickly if used on the fridge unless it has a constant supply, I doubt that situation for me would occur as we only ever use a site which has hook ups. the fridge can be run on gas but my view is if I have paid for the juice at site then use it !! when traveling the gas cannot be used so the power is taken direct from the vehicle to keep the fridge going, it pulls about 4 amps if I remember so its easily fed from a running vehicle. As a matter of interest Richard what route did you take for your power supply to the socket from the vehicle battery? did you drop down underneath the vehicle or run a protected trunking fused line inside the vehicle? Regards to all Ole Dave |
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8th Nov 2013 9:14am |
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| ARC99 Member Since: 19 Feb 2013 Location: North Yorkshire Posts: 1831
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I didn't mean to give the impression that you should run on gas when towing, I thought that you mentioned running on the battery if no 240v supply is available.
I ran the feed straight off the battery, through an available grommet on the drivers side of the battery box, then along the chassis to the point where the rear near side cables are for the road lights, then up inside the vehicle next to the road lights, after drilling a hole. I locates the new style relay behind the speaker, it is recommended that it be as close to the 12s socket as possible and kept dry. I then took the feeds from the relay back down to the socket. The relay only needed one live feed and one earth which I picked up along the chassis, there is a stud that the main battery earth is connect to. I ran the cables in convoluted plastic trunking and as a bit of over kill wrapped it in the cloth anti abrasive tape on the inside of the chassis leg which was a bit of a pain to do. I did this as my friendly M.O.T. tester warned me that additional cable runs are checked during the test these days. Don't make old people mad. We don't like being old in the first place, so it doesn't take much to us off.
Richard |
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8th Nov 2013 9:51am |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17316 
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There are kits available to fit a 12S socket to the back of the Defender which will have all the gubbins and the necessary instructions. It might be more expensive than doing it from scratch, but will save time.
If I recall correctly the LR 12S kit does pick up the same 12V feed as the connector behind the speaker, since this feed also runs to the plug-in connector from the 12N socket located behind the rear o/s wheel and the 12S socket also picks up connections from here. You might want to take a look at this thread or search the forum for "12S socket" for many relevant threads. |
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8th Nov 2013 10:03am |
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| munch90 Member Since: 26 Oct 2013 Location: guildford Posts: 3558
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you still may find you do not need the split charger .. does the zig unit control the charge to the caravan battery .. think some units even have a charge uplift to allow for voltage drop etc from the socket and to make sure caravan battery gets full charge .. I would check where the wires from the 12s socket go once inside the caravan ( do they go to caravan battery or zig unit ) .. I MIGHT BY WRONG BUT WORTH CHECKING
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8th Nov 2013 10:42am |
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| OleDave Member Since: 19 Oct 2013 Location: CARDIFF Posts: 175
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Well hello Blackwolf how are you? and hello again Munch90.
Well I think shortly I will pay Stratstone a visit in Cardiff and ask about the 12 S kit as that might be an answer to hours of work and give peace of mind. Will look at the thread you have given me Blackwolf and read what is said anyhow. Many thanks to both of you, its been a pleasure again. Regards Ole Dave |
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8th Nov 2013 1:51pm |
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