X250 cab socket upgrade

The reason for the change is that 12 volt plugs usually keep coming out of contact over bumps causing loss of power to sat navs/ chargers etc without you realising until it proves inconvenient.
These twist lock sockets prevent this 
Pictures a bit out of sequence as I've already fitted the new sockets.
First remove the rubber seat for the ashtray cup holder. Then remove the T25 torqs screw.
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The whole switch panel then pulls up on the front edge nearest you and out towards you.
The pair of original connectors have a seperate small +ve wire for illumination of the cigarette lighter socket, this wont be needed so cut off and tape back.
The large yellow +ve requires a blue female 6.3mm spade and the -ve black a red 6.3mm 
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Hi, Do you have any Photo's showing how to install a second battery, only I have been thinking of adding another 100 amp battery but it will have to go in the garage which is about 8 to 10 feet away from the original leisure battery ?
Thanks

No
If you are going to mount them remote from each other then you will need an inline fuse in the +ve at both ends and protect the cable from mechanical damage
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Do you know where I can calculate the cable and fuse size and purchase the equipment from? Thanks

What is the likely load on your batteries?

Not really sure, just general lighting and water pump,  as we normally try to use sites with hook-up, the fridge freezer is on 12 volt only when travelling

Have you noticed the time stamp is 1 hour ahead

Well if you are not hammering them with an inverter then 30 amp is plenty
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6mm cable is a good robust size and will reduce volt drop

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Enodreven wrote:

Have you noticed the time stamp is 1 hour ahead

Should be OK now, you can set this yourself in your profile, you had yours set to GMT +1 hour
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Thanks to you both, very very helpful links to electrical supplies

Thanks