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Author
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Topic: battery problem
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89_Faleen
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Member # 10728
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posted
 
 
Something is draing my battery. I put my digital multimeter(dmm) from my negative battery post to negative battery cable and I get almost full battery I get 11.5v. I've pulled out every fuse one by one voltage dosent drop. I be disconnected my electric fan, sound system full, hids. I've even removed my alternator completely nd still remain at 11.5v. Need help tanks in advance
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1990 GT (SOLD)
1990 LX (SOLD)
1995 GT (SOLD)
1989 LX (SOLD)
1997 COBRA (RIP)
1989 FALEEN (CURRENT)
Posts: 275 | Registered: Mar 2011
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93 twintrbo
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Member # 10475
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posted
DId you remove the negative battery terminal?
You need to remove the terminal and put one lead onto the battery post and the other lead to the negative cable. Once that is done, you will need to put your DVOM in the 10 amp fused setting to check for current draw.
Any current draw over 90mv is not acceptable. It should be around 30mv or so. I think you are looking at the voltage drop across the negative terminal.
Lawrence
Posts: 42 | From: Nor Cal | Registered: Nov 2010
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Camara90
1%
Member # 134
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posted
exactly pull the negative side off. And a full battery is 12.66 volts. Your shit is dead, hopefully it will come back after a trickle charge
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92GT,stock short block,9:1 TFS 170's,perf rpm,custom cam,1 5/8 shorties,C4 trans.
std. 356hp, 350tq
11.85@111.9mph on motor.
Posts: 2351 | From: 707 | Registered: Jan 2001
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89_Faleen
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Member # 10728
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posted
Yea I did it with the negative cable off forgot to mention that
Posts: 275 | Registered: Mar 2011
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FivePTSlow
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Member # 7682
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posted
how old is the battery? your battery could be going bad
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2011 GT/CS 5.0 + Boost(Procharger)
90 Bronco 5.8 Lifted
05 SRT-4 24PSI E-85 at least 50 million hp
07 Harley VROD NRS Stage 1
Posts: 1857 | From: Sacramento | Registered: May 2007
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