painless dual battery kit

[blown XJ]

has anyone used the painless wiring dual battery system Part# 40103? im thinking about using it on my xj. i was planning on a battery in the stock location and mount the other one in the cargo area behind that back seat. i would love to hear any advice about this kit. is it worth the money? works as advertised? so on

thanks chance

 

[jps4jeep]

I had one for years, never needed ever, personally I think it is a waste of under hood space and money.

 

[Bounty__Hunter]

If you're set on running two batteries, remove the stock airbox and replace it with a battery tray from a diesel XJ. Then run a high-flow airtube. More power and a good location for that second battery.

 

[Ggg]

Seems a little pricey for what you get.

 

[54cj3b]

Painless wanted 600 bucks for a wire harness for my 4.3 got the same thing from howell industries for half but not sure if they carry kits for duel battery but worth a shot
https://www.howellefi.com/customer/cart.php?mode=checkout

 

[blown XJ]

the battery tray for a diesel XJ would be pretty hard to find. i would like the dual battery because of the winch. lights. efan and subs and amp.. ect...

 

[Bounty__Hunter]

Why? Did you check the stealership?

 

[blown XJ]

i was told that they cant get parts for diesel xj anymore. the stealership said they have been out of production for to many years

 

[jps4jeep]

i would like the dual battery because of the winch. lights. efan and subs and amp.. ect...

I have all that, Still won't need it. get your self a red top optima and be done.

 

[blown XJ]

i got a yellow top and a mean green alternator and when i run my lights and my amp it sucks the battery down. i got two 2500 watt competition amps and a 15" competition subs

 

[jps4jeep]

get a red top, just because the yellow top cost more, doesn't mean that it is better. the yellow top is not designed for a vehicle that is driven daily with varying draw, it is a slow discharge battery.
Red top will support your electrical system better due to it's abiity to recover from a large amperage draw
As for your stereo amps, if you are truely running 2500W you should have at least 2 farad caps on your system.

 

[blown XJ]

im running a dbix 6000 watt cap already. i was told the yellow top is a much better battery for hard offroad use. so thats why i got it. it was actually not much more the the stock replacement battery. i get a discount through work at a battery place here in town. i got a slightly bigger then stock yellow top for 110 bucks