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What rpm does an alternater rom a rv have to spin at to charge a battery

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An alternator usually only needs to turn at engine idle speed to charge.

Posted on Apr 15, 2014

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Posted on Jan 02, 2017

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SOURCE: new alternater still not charging

The car is having power drained somewhere. Check for an electrical short or some kind of "on" power source. Good Luck!!-----------------------------------------------------------------------------------
ECU Chip Tunning Tools

Posted on Dec 17, 2012

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3 Answers

How to check alternater charging


start engine hold at 1500 rpm and disconnect battery if car stops the alternator not working .

Jan 18, 2017 | Suzuki Cars & Trucks

1 Answer

Battery light stays on after changing battery,alternater & plugin.


Is the system charging? You should have 14.2 14.6 volts at the battery. The charge light is controlled by the alternator internally. If the charging system is working, you could have a bad diode inside the alternator keeping the light on or a short/grounded circuit to the battery light

Apr 11, 2015 | 2003 Ford Windstar

1 Answer

2012 jetta battery ligh is on


it suggests your charging system isn't working correctly. Check your battery terminals and your alternater is charging. If your lights brighten when you rev the engine your alternater is charging so could be bad battery terminals or a loose connection

Mar 05, 2014 | 2007 Volkswagen Jetta 2.5 Sedan

1 Answer

Charging system voltage low


there are only 3 parts. but the causes are 25 or more.
1: belt missing slipping,
2: engine rpm below 800 RPM (lots of ways ,ask )
3: ALT had.
4: wiring to ALT bad.
5: bad battery or its connections, (wires)
6: bad fuse. see fuse link a11? on fFM page 20?
7: car is PCM alt controlled, it can be bad too. see 2 field wires on ALT and PCM on page 20? below?
8: battery temp sensor bad. making PCM think battery overheats.
the fSM covers all tests above.

pick car here, then pick charging.
5 alternators used on the 5 diffr.engines. got the wrong one?

the see wiring diagrams at end and chapter 20 inside, charge.
pdf page 118 for gas engine, if diesel next few.

Jan 07, 2014 | 1998 Jeep Cherokee

1 Answer

Alternater is only charging at 12.34 volts


if battery is almost full and there is not much current draw from the battery.Activate front seal beam, heater blower , if all connection at the battery are clean and good raise engine rpm around 1500 rpm and check battery voltage

Sep 19, 2013 | 1994 GMC Sierra

1 Answer

Charge at idle only


Your alternator is faulty. A properly working alternator produces 13.5 to 14.5 volts at idle and raised rpm's. The battery itself is 12 volts and a raised rpm demands more electrical power, therefore your drop.

Apr 12, 2012 | Saturn Cars & Trucks

1 Answer

I have a 2000 chry town and country the batt light came on the other day ignored it. now tonight when driving it the whole car shut down got a jump then it died again down the road. i jumped car agian...


wow if your battery is that old i would get a different one but you can have the battery and alternator tested for free at a auto parts store they can tell you if its junk or not but thats why your having them problems when your alternater spins it charges the battery if the battery is no good it wont hold a charge and you car will die now it the alternater is bad it will not keep the battery charged and your car will die.

Aug 23, 2011 | 2000 Chrysler Town & Country

2 Answers

My kia sephia 2000 turn signal comes on and then stops alot then after driving for awhile it comes on normal can you tell me whats wrong


I have a 2000 kia sephia, i have went through 3 alternaters including brand new in 2 days. The alternaters are not charging my battery and burning the alternaters up with in minutes of putting them on. My engine light is blinking about 40 times. When i turn the trun signals on my speedometer an rpm gage jump up and down.

May 20, 2010 | 2000 Kia Sephia

1 Answer

Replaced battery after car sat for 1 year. battery idiot light comes on when vechle idles falls below 2 rpm


hi, if the battery light is lighting up then this indicates the battery isnt charging properly so what you need to do now is check that the alternater belt is tighten correctly and not slipping check all wires going to the alternater if they are ok then the chance are the alternater needs replacing.

Let me know how you get on or if you need further assistance ok

Nov 24, 2009 | 2007 Chevrolet Aveo Sedan

1 Answer

The car wont take a complete charge


If able, ck the charging voltage at the battery. The alternater should be charging the battery between 13,6 to 14.2v. The lower the voltage the more its charging. Make sure both battery cables are clean and tight. Good Luck.

Mar 08, 2009 | 1996 Mercury Grand Marquis

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