increasing fuel capacity/ secondary battery - Toyota 4Runner Forum

Tearsfallred4u · 02-25-2012, 12:12 AM

does anyone know if there is an alternative tank you can swap out or some kind of extension to the fuel tank to increase volume??? aslo wondering if there is a kit to install a secondary battery, (like the backup batteries the bmw's have and the mercedes)

t4r4life · 02-25-2012, 12:23 AM

you can get a extra fuel sell but they are not cheap, as for the battery they have a kit i think search on google.

Singtoe · 02-25-2012, 12:41 AM

here you go

t4r4life · 02-25-2012, 12:45 AM

Quote:

Originally Posted by Singtoe

here you go

is that plastic? thats wack

jmt2404 · 02-25-2012, 12:51 AM

I thought about doing this a while back.
http://www.toyota-4runner.org/off-ro...rear-axle.html

As for the second battery alot of people have them. I put mine in a while back and love it. Just do a search for 3rd gen dual battery set up.

J-money$$$ · 02-25-2012, 02:16 AM

check pg 1 on my build for a link to my write up on my dual battery setup.

It has been great. Last month my secondary yellow top kicked the bucket do to some heavy winching. it lasted quite q while but winching is hard on batteries. It swelled up a little and stunk so bad. It woulndt even take a charge. It was nice that you know your main battery cant get over drawn so you always have a good battery to get you home.

good luck

Bucket81 · 02-25-2012, 02:19 AM

Don't buy a battery kit they are a waist of money, build one. All you need is 2 battery's, an isolator, and some 4 AWG wire.

I prefer Optimas they are easy to find so it makes them easy to warranty, and I think they all have the 3 year warranty. And I would stay away from the odyssey battery.

The isolator http://www.ballisticfabrication.com/...xes_c_174.html
You can wire it to a switch or ACC

And the best battery box on the planet. (you have to supply the hardware)
http://www.ballisticfabrication.com/...xes_c_174.html

Really having dual batteries is a waist unless you can remove the bad battier from the system when you have a problem. Having a bad battery and a good one can make the truck not start, the bad one pulls power from the good one so the truck doesn't get the power needed to start. Let's say you leave your lights on and you have your isolator hooked up to a switch. You happened to remember to switch it off when you get out so you have one good battery but with the isolator on it can draw the voltage down on the good battier. Truck no starty.... You need to remove the bad one from the system. This is as simple as removing the leads from that battery then firing the truck up and reconnecting them.

jmt2404 · 02-25-2012, 10:54 AM

Quote:

Originally Posted by J-money$$$

check pg 1 on my build for a link to my write up on my dual battery setup.

It has been great. Last month my secondary yellow top kicked the bucket do to some heavy winching. it lasted quite q while but winching is hard on batteries. It swelled up a little and stunk so bad. It woulndt even take a charge. It was nice that you know your main battery cant get over drawn so you always have a good battery to get you home.

good luck

I have my winch hooked up to the main battery and haven't had any problems yet and during the snow storm we had I used it a few times. Is there a reason you hooked it to the aux battery?

Do you have the national Luna solenoid?

Quote:

Originally Posted by Bucket81

Don't buy a battery kit they are a waist of money, build one. All you need is 2 battery's, an isolator, and some 4 AWG wire.

I prefer Optimas they are easy to find so it makes them easy to warranty, and I think they all have the 3 year warranty. And I would stay away from the odyssey battery.

The isolator Ballistic Battery Boxes
You can wire it to a switch or ACC

And the best battery box on the planet. (you have to supply the hardware)
Ballistic Battery Boxes

Really having dual batteries is a waist unless you can remove the bad battier from the system when you have a problem. Having a bad battery and a good one can make the truck not start, the bad one pulls power from the good one so the truck doesn't get the power needed to start. Let's say you leave your lights on and you have your isolator hooked up to a switch. You happened to remember to switch it off when you get o
ut so you have one good battery but with the isolator on it can draw the voltage down on the good battier. Truck no starty.... You need to remove the bad one from the system. This is as simple as removing the leads from that battery then firing the truck up and reconnecting them.

I love my national Luna solenoid and don't think it was a waste at all.. I got the controller too incase I need to jump the main battery, connect them for heavy winching, or whatever.. it monitors the power going to both and I don't have to think about it or worry about leaving a switch on or off..