Jump to content

Inconsistant voltage


Recommended Posts

Posted

Maybe a noob type question but I for a while typically always stayed at 13.6ish front and rear batts while driving and now it has been dropping to 12.6 in the same conditions. It will jump when starting the car then drop to the 12's within minutes and usually does not go back up. The problem is that it does not happen daily. Not real sure when to start troubleshooting.

2017 Honda Accord Touring 

Build coming soon

Posted

when was the last time you topped off your batteries?

CURRENT SYSTEM:

  • Alternator:
    1. Stock alt on mids/highs
    2. Isolated DC Power 270 SP - Charging @ 16.8v
  • Batteries: (2) XS D1400s
  • Power Cable: Double Runs of 1/0 KNU Kolossus Fleks
  • Headunit: 80-PRS
  • Sub Amp: DC 5.0k
  • Subwoofers: 2 RE MT 15s /PSI dual .7ohm recones
  • Subwoofer Enclosure: 9.1cubes @ 32hz - brutal.
  • Mids & Highs Amp: CT125.4
  • Active Components:
    • Mids RE XXX 6.5c
    • Highs - 3 RE XXX tweeters per side(A pillar)
  • Noise Control: Damplifier Pro all over the cab.

Build Log

If you do business with me please leave feedback here: FEEDBACK THREAD

 
Highest Legal Score: 151.0 db
Highest Musical 30 Second Average: 151.6 db
Posted

get them on a charger, top them off, and test again.You may be pulling more amps than your alt can keep up with and over time draining your bank.

CURRENT SYSTEM:

  • Alternator:
    1. Stock alt on mids/highs
    2. Isolated DC Power 270 SP - Charging @ 16.8v
  • Batteries: (2) XS D1400s
  • Power Cable: Double Runs of 1/0 KNU Kolossus Fleks
  • Headunit: 80-PRS
  • Sub Amp: DC 5.0k
  • Subwoofers: 2 RE MT 15s /PSI dual .7ohm recones
  • Subwoofer Enclosure: 9.1cubes @ 32hz - brutal.
  • Mids & Highs Amp: CT125.4
  • Active Components:
    • Mids RE XXX 6.5c
    • Highs - 3 RE XXX tweeters per side(A pillar)
  • Noise Control: Damplifier Pro all over the cab.

Build Log

If you do business with me please leave feedback here: FEEDBACK THREAD

 
Highest Legal Score: 151.0 db
Highest Musical 30 Second Average: 151.6 db
Posted

Man 12.6 with car running is not good. If you look around the classifieds on here and caco you may be able to find one cheaper than new.

Vehicle
2007 Chevrolet Avalanche(Co-Co)

DNX9980HD
6 Team Fi 15's(King Edition)
3 DC 9k's
8 Nendo PWX 8's
4 Custom Steg 4" Super Tweeters
1 DC Audio 175.4
1 DC Audio 90.4
Rockford 360.3
3 DC Power 370xp Alts(Externally regulated)
21 D1600's
2 D4800's
All SMD RCA's
AudioTechnix Deadner
Viper Alarm

My YouTube- http://www.youtube.c...NG?feature=mhee
Link to buildlog- http://www.stevemead...4-15s-2-dc-9ks/
Link to UBL- http://www.stevemeadedesigns.com/board/topic/165059-ublkings-avalanchecoco-new-build-starting8-king-edition-15-team-fis-in-a-wallyes-a-wall/

96576a0.jpg

Banner3_zpsa237d00a.jpg

Posted

Also CTEK is a good charger that doesn't break the bank and does the same thing as many of the other popular chargers.

Vehicle
2007 Chevrolet Avalanche(Co-Co)

DNX9980HD
6 Team Fi 15's(King Edition)
3 DC 9k's
8 Nendo PWX 8's
4 Custom Steg 4" Super Tweeters
1 DC Audio 175.4
1 DC Audio 90.4
Rockford 360.3
3 DC Power 370xp Alts(Externally regulated)
21 D1600's
2 D4800's
All SMD RCA's
AudioTechnix Deadner
Viper Alarm

My YouTube- http://www.youtube.c...NG?feature=mhee
Link to buildlog- http://www.stevemead...4-15s-2-dc-9ks/
Link to UBL- http://www.stevemeadedesigns.com/board/topic/165059-ublkings-avalanchecoco-new-build-starting8-king-edition-15-team-fis-in-a-wallyes-a-wall/

96576a0.jpg

Banner3_zpsa237d00a.jpg

Posted

Man 12.6 with car running is not good. If you look around the classifieds on here and caco you may be able to find one cheaper than new.

It does not happen all the time though, just a lot recently. Any links or specifics to look for? I've never looked into them before. Thanks

2017 Honda Accord Touring 

Build coming soon

Posted

CTEK 7002 will be big enough for what you have. They are right around $100-120 and I used one for a year on 4 kinetik 2400's and then got a bigger one when I added another battery

Edit" Just search Ebay or Amazon for the best prices unless you can find one used

Vehicle
2007 Chevrolet Avalanche(Co-Co)

DNX9980HD
6 Team Fi 15's(King Edition)
3 DC 9k's
8 Nendo PWX 8's
4 Custom Steg 4" Super Tweeters
1 DC Audio 175.4
1 DC Audio 90.4
Rockford 360.3
3 DC Power 370xp Alts(Externally regulated)
21 D1600's
2 D4800's
All SMD RCA's
AudioTechnix Deadner
Viper Alarm

My YouTube- http://www.youtube.c...NG?feature=mhee
Link to buildlog- http://www.stevemead...4-15s-2-dc-9ks/
Link to UBL- http://www.stevemeadedesigns.com/board/topic/165059-ublkings-avalanchecoco-new-build-starting8-king-edition-15-team-fis-in-a-wallyes-a-wall/

96576a0.jpg

Banner3_zpsa237d00a.jpg

Archived

This topic is now archived and is closed to further replies.

  • Recently Browsing   0 members

    • No registered users viewing this page.
  • Who's Online   0 Members, 0 Anonymous, 949 Guests (See full list)

    • There are no registered users currently online
×
×
  • Create New...