voltage across battery when charging ?

mikew88gt · 11-26-2005, 06:25 AM

Seriously, how many grounds do you have?

You should have your battery grounded in one place. The other "grounds" I mention are where other electrical equipment is grounded to the car. My point is, maybe his battery is grounded just fine but the ground for his alternator is not adequate or maybe the bonding strap from the engine/tranny isn't cutting it. These will cause problems that can be hard to diagnose.

Good luck. Hope you get it on the road soon.

redsn95vert · 11-27-2005, 07:34 PM

I've been running a stock alt, underdrives, and a Optima Red Top for years. The lowest my bat drops is 12.5 with all the bells and whistles. I just took a 8 hour class in starting and charging systems 2-3 weeks ago, and it seems like you have a short someware,,,,
Check the connections at the starter and your ground. hope this helps.....Good Luck

11-26-2005, 06:25 AM	#1
mikew88gt Registered Member Join Date: Jul 1999 Location: New York State Posts: 242	Re: voltage across battery when charging ? Seriously, how many grounds do you have? You should have your battery grounded in one place. The other "grounds" I mention are where other electrical equipment is grounded to the car. My point is, maybe his battery is grounded just fine but the ground for his alternator is not adequate or maybe the bonding strap from the engine/tranny isn't cutting it. These will cause problems that can be hard to diagnose. Good luck. Hope you get it on the road soon. __________________ Your basic carbed 302 with Edelbrock Performer heads, Performer RPM intake and 650 Speed Demon. My 1988 Mustang GT

11-27-2005, 07:34 PM	#2
redsn95vert Registered Member Join Date: Jul 2000 Location: Rochester Posts: 323	Re: voltage across battery when charging ? I've been running a stock alt, underdrives, and a Optima Red Top for years. The lowest my bat drops is 12.5 with all the bells and whistles. I just took a 8 hour class in starting and charging systems 2-3 weeks ago, and it seems like you have a short someware,,,, Check the connections at the starter and your ground. hope this helps.....Good Luck __________________ 95 GT convertable, ported+polished GT40 heads, port matched upper and lower Cobra intake manifold, Flowthech headers, Catco hi-flow h-pipe with 2 hi-flow cats, Mac true fit catback exhaust, 3.73 gears, underdrive pullies, Edelbrock 70mm throttle body, Mac cold air intake, FMS 24lb injectors, Granatelli 75mm mass air

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