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  1. Quick Fix: FJ wouldn't turn over and horn was beeping constantly

    Misc. Technical Discussion
    So I disconnected the battery positive for 3 months to leave the truck in storage. When I reconnected it, the horn went off constantly, and she wouldn't turn over. The battery voltage was well within the acceptable range. A mechanic suggested: 1. Removing the key 2. Reconnecting the battery...
  2. Deep-cycle battery suggestions (HELP)

    Stereo / Electronics / Electrical
    First post & proud new FJ Cruiser owner! I know this topic has been discussed, but I’ve been searching the forums endlessly on deep-cycle batteries and they all seem outdated... I’m taking a 10 day trip through “The Maze” in Moab this coming May. I’m looking for a reliable deep-cycle battery...
  3. Erratic voltage, strange symptoms

    Stereo / Electronics / Electrical
    Just got done dealing with a confusing issue, hope this helps. I was very close to spending a lot of money that wasn't necessary. Symptoms: Voltage drop under braking, voltage dive coming to a stop, good start with low idle, stalling idle, battery not charging I was experiencing all of these...
  4. Voltage Fluctuations

    Stereo / Electronics / Electrical
    I will start off with the details: - 2007 AT 4x4 - 112k miles - Battery is Odyssey 34R-PC1500T AGM Group 34 installed brand new about 7 months ago - Alternator is stock Denso Remanufactured 100 amp installed about 2 months ago - HKB Electronics Alternator Voltage Booster installed about a month...
  5. Truck Shut off while driving HELP!!!

    Newbie Discussions
    So today i got a 55in curved Rough country light bar installed on my 2010 FJ. When i picked the truck up i turned it on and then tested out the light bar. Looked great the installer even made a comment about how bright it looked. So i headed out happy. As i got about a 1/4 mile down the road i...
  6. Weird Starting problem. Can anyone help me solve this?

    Problems / Dealer Service
    So I have a bizzare experience happening. Walked to my 2008 Fj, unlocked it with key fob. Put the key in the ignition, let the battery kick in (lights, music, etc.) as soon as I turned the key to crank it. I hear one click then all power shuts off. Lights turn off with music along with...
  7. URGENT help needed. FJ idling poorly after battery disconnect.

    Engine Performance
    Im posting this in general because its urgent, mods you can move this post later. ok so Im a college kid who moved off to oregon with the cash in his pocket so I cant have a dealer fix me up because $$. I was working on my 07 FJ and I disconnected the battery because I saw a huge rust spot in...
  8. Battery Question...

    Misc. Technical Discussion
    Hey Guys, I have a question to throw out there. I have a 2014 FJ and it still only has about 5K miles on it if that. My battery appears to have a bad cell already. I can tell it's a bad cell as the Alternator is fine and putting out the right voltage, however, when you go to start the truck the...
  9. Dome light Circuit Parasitic Drain

    Stereo / Electronics / Electrical
    Hello all, I have a 2011TT and have been having an interesting problem. About a year ago now I took it in for service at the dealer and they told me the battery needed to be replaced as it was not holding a charge. I replaced it with a Optima Yellow Top shortly after and didn't have any issues...
  10. Lighting and Battery Life

    Lighting
    Hey guys, So as of now, my battery is powering a CB Radio, 12,000lb Winch, a police/fire/ems radio, a regular AM/FM radio with a subwoofer, as well as all of its regular duties as a car battery. I am looking to get a bunch of lighting so that I can light up the trails. But I am worried that I...
  11. battery advice

    Stereo / Electronics / Electrical
    Hey everyone! Havent posted in awhile but I had a quick question. I need to buy a new battery for my baby... she made it 93K on the factory battery.. please dont ask how i did that! lol! anyway a friend suggested a Northstar battery and an odyssey. anyone with experience in these? or should i...
  12. Portable power in an ammo can!

    Stereo / Electronics / Electrical
    I stumbled across this gem a while back and he is finally going into production with it! The PWRBOX35-S is designed to be the power solution for outdoor, on the road, and emergency use. Encased in a waterproof Ammo Box, the 35Ah AGM battery packs a punch with over 350 Cold Cranking Amps. From...
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