14.78 VDC at battery Too high?

Andy D · 06-17-2012, 06:42 PM

My old BMWs put out 14 as a norm. I dont know what is normal for the Ranger. I would just as soon not boil the Valuecraft battery I bought last summer. TIA

**RangerSVT** · 06-17-2012, 07:26 PM

Ranger normal voltage running is 14.5. Anything 13.5-15.5 is acceptable voltage. Anything over or under needs to be addressed...

SVT

**Tominator** · 06-17-2012, 07:37 PM

Quote:

Originally Posted by RangerSVT

Ranger normal bootstrap running is 14.5. Anything 13.5-15.5 is acceptable voltage. Anything over or under needs to be addressed...SVT

Yep! My 3G routinely hits 14.7.

**adsm08** · 06-17-2012, 07:40 PM

13.0 to 15.5 will function

13.5 to 15.0 is good enough

14.0 to 15 is really good.

Around 14.5 is optimal.

Unless there is a high load on the system, AC, dead battery, all the lights and the radio cranked, I don't usually like to see much above 14.8.

**doorgunner** · 06-18-2012, 01:51 PM

just watch for a battery cable with corrosion inside the plastic coating...that made my alt. gradually increase as the cable got worse.....

press 1 for english · 06-18-2012, 03:31 PM

If you are checking voltages when the alternator is cold, 14.7 is pretty much normal. Once the alternator builds up heat, 14-14.5 is normal.
I would never run more than 15 volts as that would hurt the battery.

The purple one · 06-18-2012, 07:21 PM

Heres another one for its no problem. That is what it should be at

Andy D · 06-18-2012, 08:22 PM

Thank you gennulmen. I once had an overcharged battery blow up in the spousal unit's car. Glad to know truck is behaving . It was titled as having 126K miles Hard fun miles, looks like. With a 5 digit odometer, who knows? Marina wants me to review her manual shifting. She learned to drive in my '62 bug and drove them for 15 yrs.

06-17-2012, 06:42 PM	#1
Andy D Member Join Date: Jul 2011 Location: Marshfield MA Year: 94 Make: Ranger Model: 4x4 Engine: 4.0 OHV Used For: mini pick up stuff Posts: 663 Rep Power: 6 iTrader: (0)	14.78 VDC at battery Too high? My old BMWs put out 14 as a norm. I dont know what is normal for the Ranger. I would just as soon not boil the Valuecraft battery I bought last summer. TIA
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06-17-2012, 07:26 PM	#2
RangerSVT Oct 09 OTOTM Join Date: Mar 2009 Location: TRS since 2002 - NW TN Year: 1996 Make: Ford Model: Ranger SC 4x4 Engine: GT-40 5.0L EFI W/AC Class: 4x4 EXTREME DD Used For: Anger Management Posts: 6,008 Rep Power: 27 iTrader: (29)	Ranger normal voltage running is 14.5. Anything 13.5-15.5 is acceptable voltage. Anything over or under needs to be addressed... SVT __________________ *Member of the Turkey Bay Crew* *SVT Build Thread (96 V8 Ranger)* ST Build Thread (02 V8 Sport Trac) *V8 swap Club/Info* Last edited by RangerSVT; 06-17-2012 at 08:11 PM.
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06-18-2012, 01:51 PM	#5
doorgunner Lab Rat for V.A. hospital Join Date: Oct 2008 Location: New Orleans (8' below sea level & sinking) Year: 1989/1936 Make: Ford Model: Ranger XLT Engine: V-8...Carbed/fo-barrel Class: 2WD Street Used For: FUN on a daily basis! Posts: 11,722 Rep Power: 72 iTrader: (0)	just watch for a battery cable with corrosion inside the plastic coating...that made my alt. gradually increase as the cable got worse..... __________________ *******My Stupied Build Thred! http://www.therangerstation.com/foru...ad.php?t=30561***** *All the people who's freedom of speech I fought to defend are now telling me to shut up* ******The Congress that gave me a Machine Gun to kill as many enemy as possible now wants my Winchester Model 1894 because I have PTSD!********
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06-18-2012, 03:31 PM	#6
press 1 for english Member Join Date: Jun 2009 Location: Arcadia, Fl Year: 2007 Make: Ford Model: Ranger XLT Supercab Blue Engine: 2.3 Class: 2WD Used For: Pleasure...drive to work Posts: 454 Rep Power: 8 iTrader: (0)	If you are checking voltages when the alternator is cold, 14.7 is pretty much normal. Once the alternator builds up heat, 14-14.5 is normal. I would never run more than 15 volts as that would hurt the battery. __________________ Dumb is an art form!
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06-18-2012, 07:21 PM	#7
The purple one Member Join Date: Mar 2009 Location: CT Year: 1993 1987 Make: Ford Model: Ranger & F-350 Engine: 2.3 & 7.5 460 Used For: Dump runs Posts: 280 Rep Power: 9 iTrader: (0)	Heres another one for its no problem. That is what it should be at
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06-18-2012, 08:22 PM	#8
Andy D Member Join Date: Jul 2011 Location: Marshfield MA Year: 94 Make: Ranger Model: 4x4 Engine: 4.0 OHV Used For: mini pick up stuff Posts: 663 Rep Power: 6 iTrader: (0)	Thank you gennulmen. I once had an overcharged battery blow up in the spousal unit's car. Glad to know truck is behaving . It was titled as having 126K miles Hard fun miles, looks like. With a 5 digit odometer, who knows? Marina wants me to review her manual shifting. She learned to drive in my '62 bug and drove them for 15 yrs.
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