jeepwrangler11 Posted February 13, 2010 Report Share Posted February 13, 2010 Im running a Shuriken BT-20 AGM Battery as a secondary to power my system. I have Stinger 4 Gauge wire hooked up to the front batt with a 80amp fuse inline to the BT-20 and my voltage on the BT-20 went from the high 14 volt mark to 12.3volts at the most. What is wrong and why wont my BT-20 Battery charge up to its 14 volts anymore. I took the battery out of a 4runner and hooked it up the same way in my jeep that it was in the 4runner but the voltage is lower then when it was in the 4runner hooked up exactly the same. 1998 Jeep Wrangler Tj Sport 4.0L Headunit:Pioneer AVIC-N2 Front Speakers:Boston 746 Rear Speakers:Boston CX-6 Speaker Amp:Kenwood KAC-526 Subwoofer:Kicker Free Air Competition 8inch Subwoofer Amp:Kenwood KAC-428s Wiring:Stinger 4&8 Gauge, Rockford Fosgate 16G Big3 in 4 guage stinger and two 8 gauge stinger wire Rockford Fosgate Battery Terminals,Connections and Distro Block Rockford Fosgate Signal Cables *UPGRADE COMING SOON ONCE SUBS AND AMPS ARE DECIDED* New Subs Two Sundown SD1V2 10's Link to comment Share on other sites More sharing options...
tristan560 Posted February 13, 2010 Report Share Posted February 13, 2010 Im assuming your charging wire is not connected in some way. <u>99 Jimmy SLT 4WD</u> Systemless. <u>99 Grand Prix GTP</u> DC XL 12 on 1.5k tuned lowwwwww. Link to comment Share on other sites More sharing options...
jeepwrangler11 Posted February 13, 2010 Author Report Share Posted February 13, 2010 I checked it and its connected. 1998 Jeep Wrangler Tj Sport 4.0L Headunit:Pioneer AVIC-N2 Front Speakers:Boston 746 Rear Speakers:Boston CX-6 Speaker Amp:Kenwood KAC-526 Subwoofer:Kicker Free Air Competition 8inch Subwoofer Amp:Kenwood KAC-428s Wiring:Stinger 4&8 Gauge, Rockford Fosgate 16G Big3 in 4 guage stinger and two 8 gauge stinger wire Rockford Fosgate Battery Terminals,Connections and Distro Block Rockford Fosgate Signal Cables *UPGRADE COMING SOON ONCE SUBS AND AMPS ARE DECIDED* New Subs Two Sundown SD1V2 10's Link to comment Share on other sites More sharing options...
HHR Ed Posted February 13, 2010 Report Share Posted February 13, 2010 Is the battery grounded? Is that voltage read with the car on or off? Ed Lester ShowtimeSPL Host Showtime Electronics Video MarketingMy old Build Loghttp://www.stevemead...08/#entry511451http://www.youtube.com/showtimespl 5 time dB Drag Finalist Last ride 2007 HHR, current dB 153.5 and bass race 149.4 dB. 153.0 dB on music New Ride, 2008 HHR SS. Build under way. Loudest score ever = 171dB 2009 dB Drag Racing, North American Points Champion Link to comment Share on other sites More sharing options...
Ndnkobra Posted February 13, 2010 Report Share Posted February 13, 2010 Is the battery grounded?Is that voltage read with the car on or off? x2, also how long have you had that battery for? maybe a cell just happened to die Link to comment Share on other sites More sharing options...
Mobile Chassis Dyno Posted February 13, 2010 Report Share Posted February 13, 2010 I wonder if the alternator just happened to take a dump at the same time. Sounds like you are running off the batteries to me. Warm Regards, Dyno Brian 1997 Ford Probe |Sony Head Unit|Alpine V12 AccuClass-D MRD M1000 Amplifier|4 RE AUDIO SRX12D4 12's|Mids and Highs coming soon!| |1998 Mustang GT Twin Turbo|1986 Mustang GT Single Turbo|1996 Mustang Mystic Cobra N20|1995 Mustang Cobra 5,000 miles| 2002 ZO6 Link to comment Share on other sites More sharing options...
jeepwrangler11 Posted February 14, 2010 Author Report Share Posted February 14, 2010 i will know for sure if the alts bad tuesday once i can get some gas for my car cuz im in cali for the weekend. And i dont know if it could cause the problem but my alt is stock 1998 Jeep Wrangler Tj Sport 4.0L Headunit:Pioneer AVIC-N2 Front Speakers:Boston 746 Rear Speakers:Boston CX-6 Speaker Amp:Kenwood KAC-526 Subwoofer:Kicker Free Air Competition 8inch Subwoofer Amp:Kenwood KAC-428s Wiring:Stinger 4&8 Gauge, Rockford Fosgate 16G Big3 in 4 guage stinger and two 8 gauge stinger wire Rockford Fosgate Battery Terminals,Connections and Distro Block Rockford Fosgate Signal Cables *UPGRADE COMING SOON ONCE SUBS AND AMPS ARE DECIDED* New Subs Two Sundown SD1V2 10's Link to comment Share on other sites More sharing options...
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