Dual battery

Hi - I've had a look but could only find battery trays for the disco 2

I know lots of people have winches on their disco so can anyone show me how they have their dual battery setup - or where they got a dual tray from.

Cheers.

If you move your jack and chock from behind your n/s headlight there should be a battery tray already there. Pretty sure it was standard on the D1 but I could be wrong.

RichardH said:

If you move your jack and chock from behind your n/s headlight there should be a battery tray already there. Pretty sure it was standard on the D1 but I could be wrong.

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Thanks for the tip, I will have a look when I am back at the weekend.

Going to be a bit of a bitch for the cables to link the two though?

Any piccies from people that have dual batteries?

How you doing are you buying the brain as such what does a auxiliary battery straight from the alternater are you just going for a normal car battery with wires off the existing to charge it... I only ask as I need a dual battery for a c.b and some flashing lights so I can leave them on without the car running and killing the battery.

joshremlin said:

How you doing are you buying the brain as such what does a auxiliary battery straight from the alternater are you just going for a normal car battery with wires off the existing to charge it... I only ask as I need a dual battery for a c.b and some flashing lights so I can leave them on without the car running and killing the battery.

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Deep cycle battery, Haven't decided on wiring yet - for a winch.

Will try and take some pics at the weekend if you can hang on that long, the battery tray is where your jack ect is now.

pussa13 said:

Will try and take some pics at the weekend if you can hang on that long, the battery tray is where your jack ect is now.

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Ok that would be appreciated.

D90mitch said:

Deep cycle battery, Haven't decided on wiring yet - for a winch.

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Ive got a brand new normal car battery I think ill get away with that for now as the flashing lights and cb isn't high watts/amps

I made one recently. 100 amp relay operated from a switch which also switches on a voltage meter so I can monitor it. I've also wired the relay from the D+ on the alternator so the relay will only switch on when the engine is running!!

forkliftfred said:

I made one recently. 100 amp relay operated from a switch which also switches on a voltage meter so I can monitor it. I've also wired the relay from the D+ on the alternator so the relay will only switch on when the engine is running!!

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B+ mate. D+ is always live so your batteries will be constantly connected with that setup which is not good.

If your going to be using a winch I would suggest the biggest single battery you can get in your main tray, say at least 1000CCA job, and when you winch just idle her up a bit or put in some kind of hand throttle. Dual batteries is only really useful for fridges and spotlights and so on. If you want to winch with the engine off it would be a help but that won't make your batteries last too long before they go flat! Having said that, dual batteries are cool....... main thing innit
Two Optima yellowtop dual starter/deep cycles would be a sweet setup.

Wish I knew how to connect the 2nd battery in a proper way - I got this car with two batteries already there, connected parallel, I think. So they were draining each other ot something, I don't know for sure as I'm a bit of a dumbass when it comed to automotive wiring/electronics and so on. I've disconnected my second battery and removed it. Sometimes I drop it back in as a spare, without connecting it. Both are 65 Amh or whatnot. So together way over 100. The alternator is what, 75? So isn't it bad dor it to charge two bayteries at the same time?

m1943 said:

Wish I knew how to connect the 2nd battery in a proper way - I got this car with two batteries already there, connected parallel, I think. So they were draining each other ot something, I don't know for sure as I'm a bit of a dumbass when it comed to automotive wiring/electronics and so on. I've disconnected my second battery and removed it. Sometimes I drop it back in as a spare, without connecting it. Both are 65 Amh or whatnot. So together way over 100. The alternator is what, 75? So isn't it bad dor it to charge two bayteries at the same time?

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Unless one battery is faulty, one will not discharge the other and it's fine to connect 2 batteries of the same type & AH together, they will just take longer to charge fully. You need to check the voltage you are getting from the alternator at 2K rpm, you need around 14.2 volts to fully charge a modern battery.
If the second battery is just for a winch for example, you can fit a relay to seperate it from the main battery except when the engine is running by using the D+ on the alternator to energise the relay.