Deep Cycle Battery for Discovery S2

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Originally Posted by pilbaradisco

Hi Franz,
I put a AGM 104AH battery in the original battery position for the fridge and fitted a smaller cranking battery in the ARB(Perth W.A.) battery tray. I joined the two heavy +ve cables from the oringinal +ve batt clamp in a 95mmSq butt crimp and used 50mmSq cable to run around the the ARB tray.
I have a Concorde Sun-xtender 104ah AGM for the second batt and a Red top Optima for the cranking batt. Both batteries even survived the 45 min dunking when I drowned my first D2 back in 2005.

http://www.gallery.d2au.com/main.php?g2_itemId=666

Glen.

Note:- I think the ARB Perth battery tray has a better heat sheild then the Eastern state types.

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I thought about doing this too but changed my mind, and made my own tray and heat shield, i've modified it again and added another shield to be extra sure.

A good idea that you have and probably better suited to you guys that camp with the car only, and a little easier than moving the ECU to fit the second battery beside the factory one.

Baz.

Not wishing to detract from the topic but because of the on going problems with heat associated to the firewall mounted battery, where space permits, I would recommend fitting the second battery in the cargo area in the rear of the D2.

The problem with the firewall mounted battery is not just the radiated heat coming off the engine but that this battery is going to be much hotter that the front battery and the hotter any battery is, the lower the charge voltage should be to avoid damaging the battery.

As there is no adjustment to the charging voltage level, I think that the problems with this battery location is a combination of high temperatures and too high a charging voltage.

Putting the battery in the rear of the D2 resolves the problems

drivesafe,
Whats it like under the bonnet of the TD6 RR for duel battery space? Got any pic's?

Glen.

Quote:

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Originally Posted by pilbaradisco

Hi Franz,
I put a AGM 104AH battery in the original battery position for the fridge and fitted a smaller cranking battery in the ARB(Perth W.A.) battery tray.

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This is what I was going to suggest. In my Rodeo I swapped the start battery and 2nd battery around. The Rodeo has only room for a small 2nd battery but can take an N70 size in the main tray. The Rodeo has a large main tray to suit the diesel but since I had the petrol I only needed a small start battery.

Hi Glen, no need for pictures as there is no possible way of mounting a second battery under the bonnet of a Mark III RR.

Thankfully, Land Rover had the wisdom to pre-fit mounts for a second, altho small, battery in a side compartment, under the floor in the rear.

Cheers.

Has anyone mounted the 2nd battery in the space where the fuel filler hose is, is ds rear quater panel?? There seems to be heaps of room there, unless you go a long range tank??

Aaron