|05-09-2013 10:05 PM|
|AC0QR||The wiring diagram indicates that connecting them in parallel is exactly what he is doing...|
|05-09-2013 08:45 PM|
|05-09-2013 08:32 PM|
Nice job on the review Reketr. I noticed the mix of Red Top & Yellow Top, just remember to never let them get connected in parallel with each other. The only way batteries can be connected in parallel without one damaging the other is if both batteries are identical in every way including age.
|05-09-2013 08:27 PM|
|DJs97TJs||Any pictures of the control you use to switch between the batteries?|
|09-08-2012 06:09 AM|
|little1989jeep||My red top has survived a jeep fire, wrecked truck, & now it lives in our Massey 235 with no alternator|
|09-08-2012 04:00 AM|
|Texas2070||Is optima a good battery? Mines great and has never let me down. I was just wondering.|
|11-21-2011 09:53 PM|
|Itsfun00||Thats sweet... I need to do that and was thinking of using the other tray instead of squeezing it in. But now I know they will fit. Thank you!!|
|11-21-2011 08:25 PM|
|Jeeprogue||Nice Set-up btw, the other tray is not for if the steering wheel is on the other side (my TJ is a Righty) it is actually for the ABS module.|
|10-16-2011 11:09 PM|
|2005TJSOCAL||I like the set up, thanks I was looking at the other side tray, probably for when the steering wheel is on the other side? I think I m going to put my tank and compressor on that side. Do you have air too? Thanks for pics|
|04-12-2010 01:25 PM|
Nice setup! What do you think is the feasibility of using a heavy duty power-switch as an axillary battery master switch instead of an isolator?
|09-13-2007 02:59 AM|
|dwdrums801||yeah i need another battery my lights dim just with my stereo loud and when my winch is working.....I want to add 4 130w lights to the front of my jeep and 2 on the back and also rock lights|
|09-13-2007 01:16 AM|
|09-13-2007 01:06 AM|
|RIPBiker13||Why would you want this?|
|09-13-2007 12:22 AM|
HOWTO: Dual Battery Setup
Back in August of '06 I installed a dual battery config in my TJ. Well I finally remembered to post some pictures:
Here's a pic of the "tray":
And of the top cross bar:
And the final product (before reconnecting everything):
Here's a pic of the wiring diagram I drew up:
- Optima Red Top for main battery
- Optima Yellow Top for all accessories
- Painless Wiring Isolator
- Mean Green 200Amp Alternator
- ~20' of red and 20' of black #2 stranded cable
- a couple feet of 1.5" x 1/8" angle
- a few feet of 1.5" x 1/8" flat
- other: heat shrink, lugs, and wire ties
I set it up with the mindset that everything that came stock with my TJ went to the main battery and everything I've added (lights, winch, CB, etc) go on the accessory battery.
Chose the painless wiring isolator because there is a connection into the cab (not shown on the pic) with a switch that can allow for 1) normal operation where both batteries are being charged, 2) splitting off the Aux battery so it is completely by itself (i.e. not being charged), and 3) connecting the two batteries together in case the main is dead and you need to basically do jump it (with no jumper cables) to start the vehicle.
Uses the stock J bolts to hold it down. The two ends of the cross bar that aren't touching the J bolts are bent at a 90 degree to stop the batteries from shifting side to side.
And I used about 1/2 a can of spray on bed liner to coat the metal cross bar (figured it might make a nice rubberish coating on the cross bar).
In all was a fun project...especially since it was my first.