Thread: Battery disconnect

G'day Steve, I have a Cat isolator switch fitted to the front of the passenger side seatbox so you can reach across and isolate everything. Works a treat.

nope, not overkill

you can also now buy a pulsed relay (press to close press to open) that will do the job so you can activate it from anywhere

Originally Posted by Blknight.aus

nope, not overkill

you can also now buy a pulsed relay (press to close press to open) that will do the job so you can activate it from anywhere

Thanks Dave - hadn't heard of them.
I think I'd prefer to keep this one to a simple mechanical arrangement.

Whats a suitable rating for a battery switch given that it needs to be able to handle the Isuzu cranking, and some winching?
Something like this?? Blue Sea 6006 M- Series Battery Switch Single Circuit ON/OFF for Marine Service | eBay

Steve

depends on how much your going to winch with it...

Personally I'd want at least a 500A rating and not just a 10 second rating for the suzi and if you were going to winch at least the same as the batteries CCA if not higher.

That switch would do the job in a suzi but I'd only expect it to last about 3 years. The TD25 towmotors have a 100ish amp constant 500ish 10 second and 1500 peak rated Isloator on them and they last 2-3 yeas and the starter only draws about 300A

Steve,
I have this type on the front of my seat box. It gives you the options of isolating either battery separately, coupling both together or isolating both.

They're not too pricey either 250A DUAL BATTERY ISOLATOR SELECTOR

I dare say BCF would have them out your way, or most boat shops.

Cheers, Murray

I used something better than a marine switch and cheaper too.
A dual battery marine switch works great, but takes up room.
Buy 2 x15 dollar plastic isolators switches with plastic keys and fit them in the front of the battery compartment.
It allows easier fit up as the switches are much smaller and you just run one switch per battery and cut them in and out as you want them.
It is proven and reliable as I have be using these switches for years with and without electric winches as described.
Take the keys out and it is anti theft too.
Use the switches on the positive side.
New keys can be purchased, but at 15 dollars a pop it doesnt matter.

Defender 130 with twin batteries

Twin battery on 101 landrover done the same way with switches in the battery box just like the Defender and they are hidden behind the seat too.
I have never had to replace one of those switches in the more than 15 years in the defender and 6 years in the 101 and they get turned off every time I would park the vehicle for any lenght of time,

Heavier duty metal switches are advailble for good prices, but found the plastic ones work well, cheaper and do not suffer from any corrosion problems and again for 15 dollars a pop..........would it matter ? and never had a plastic one fail with my useage including electric winching , in witch case both switches would be closed to allow maximum gunt to the battery
Both switches would have to fail at the same time to cause much trouble.........and with the limited battery room and sizes in the battery compartment none have failed.