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getting a 15v rating on a 12v system


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still_walkin 
Silver - Posts: 644
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Joined: April 18, 2007
Location: California, United States
Posted: December 05, 2009 at 7:26 PM / IP Logged  
Pretty much I was thinking if that meter was right which its not wouldn't the battery burst or give after this much over charging
1993 sdv
Alpine 4x6 6x9 5 1/4 swr-10d4
alpine v60
12.5 VGA flip down
Nettop pc w/10" touch screen
78nova
5-re audio 5x7 ,10" sub &
Xtx-500.5
"Take the faceplate off get the jumperpack"
i am an idiot 
Platinum - Posts: 13,605
Platinum spaceThis member consistently provides reliable informationspace
Joined: September 21, 2006
Location: Louisiana, United States
Posted: December 05, 2009 at 7:52 PM / IP Logged  
Chances are the "Bling Volt Meter" you know the one mounted to the battery is inaccurate.  Running 14.4 volts into a battery will not usually make it blow up.  Seriously get a decent meter to see which of the 2 you have is inaccurate.
still_walkin 
Silver - Posts: 644
Silver spacespace
Joined: April 18, 2007
Location: California, United States
Posted: December 05, 2009 at 7:56 PM / IP Logged  
Yea I know My bling meter is wrong what I was saying about the battery is if it was charging constantly at 15v on a 12v battery what would happen to the battery
1993 sdv
Alpine 4x6 6x9 5 1/4 swr-10d4
alpine v60
12.5 VGA flip down
Nettop pc w/10" touch screen
78nova
5-re audio 5x7 ,10" sub &
Xtx-500.5
"Take the faceplate off get the jumperpack"
zerepdivad 
Silver - Posts: 605
Silver spaceThis member has made a donation to the12volt.com. Click here for more info.spacespace
Joined: July 03, 2006
Location: Wisconsin, United States
Posted: December 05, 2009 at 8:11 PM / IP Logged  
Just trust the multimeter. 14.4 is a healthy alternator.
A DMM is a beautiful thing.
MECP Advanced Installer Certified.
still_walkin 
Silver - Posts: 644
Silver spacespace
Joined: April 18, 2007
Location: California, United States
Posted: December 05, 2009 at 8:13 PM / IP Logged  
Yea I kno I left the ground on the pos terminal unplugged.
1993 sdv
Alpine 4x6 6x9 5 1/4 swr-10d4
alpine v60
12.5 VGA flip down
Nettop pc w/10" touch screen
78nova
5-re audio 5x7 ,10" sub &
Xtx-500.5
"Take the faceplate off get the jumperpack"
oldspark 
Gold - Posts: 4,913
Gold spacespace
Joined: November 03, 2008
Location: Australia
Posted: December 06, 2009 at 1:14 AM / IP Logged  
still_walkin wrote:
what would happen to the battery
Above 14.4 Volts (long-term) cooks the battery (gassing etc).
It usually wrecks AGS (VRLA) & Gel Cels because they have no fluids to boil off. (And you can get thermal runaway on AGMs.)
Some AGMs claim they will tolerate above 14.4V provided they do not overheat.
still_walkin 
Silver - Posts: 644
Silver spacespace
Joined: April 18, 2007
Location: California, United States
Posted: December 08, 2009 at 12:58 PM / IP Logged  
Sounds crazy.
1993 sdv
Alpine 4x6 6x9 5 1/4 swr-10d4
alpine v60
12.5 VGA flip down
Nettop pc w/10" touch screen
78nova
5-re audio 5x7 ,10" sub &
Xtx-500.5
"Take the faceplate off get the jumperpack"
oldspark 
Gold - Posts: 4,913
Gold spacespace
Joined: November 03, 2008
Location: Australia
Posted: December 08, 2009 at 4:59 PM / IP Logged  
The truth often does.
(According to others. In that regard, I no longer judge.)
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