Charge circuit guru's...
#1
Registered User
Thread Starter
Charge circuit guru's...
Okay this is weird.
So lately my "Battery/Alt" lamp has been going on and off as I drive but the alt is still putting out 14.5 volts whether the light is on or off and it's usually very stable as this happens too. Only maybe 3 times over the last 4 days have I noticed the voltage spike to 15 -16 volts but this only happens for a split second then flicks back to the regular 14.5 volts and stays there.
(I notice the spike because my inverter has an alarm for over/under voltage. Also, I have voltmeters in my dash for both batteries as you can see in my Build thread)
I checked the leads from my fuse box to the alt and they seem okay. The alt is a little over a year old and it's a DC Power 180 amp unit.
Anyone with any suggestions?
So lately my "Battery/Alt" lamp has been going on and off as I drive but the alt is still putting out 14.5 volts whether the light is on or off and it's usually very stable as this happens too. Only maybe 3 times over the last 4 days have I noticed the voltage spike to 15 -16 volts but this only happens for a split second then flicks back to the regular 14.5 volts and stays there.
(I notice the spike because my inverter has an alarm for over/under voltage. Also, I have voltmeters in my dash for both batteries as you can see in my Build thread)
I checked the leads from my fuse box to the alt and they seem okay. The alt is a little over a year old and it's a DC Power 180 amp unit.
Anyone with any suggestions?
#3
Registered User
iTrader: (1)
Since the light goes on in a over voltage situation as well as under That is why your light is coming on.
Sounds like your voltage regulator is on the way out .
I just hope it does not let you sit.
Are you running some sort of battery isolator with your dual batteries??
Depending just how things are wired it would not hurt to look at that as well
Sounds like your voltage regulator is on the way out .
I just hope it does not let you sit.
Are you running some sort of battery isolator with your dual batteries??
Depending just how things are wired it would not hurt to look at that as well
#4
Registered User
You can also check the cable for the alternator to the battery, or isolator, whatever you are running. If that is frayed, corroded or some of the strands have broken inside the insulation, you will have this exact same problem.
#7
Registered User
Thread Starter
It just started happening on the weekend.
I've been thinking about getting a back-up one from the wrecker to eliminate the alt being the issue.
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#8
Registered User
iTrader: (1)
Well trouble shoot the charge light circuit.
Starting at the plug on the alternator .
Is this a plug and play alternator swap from factory or is some custom wiring needed ??
Is it possible your light is coming on because another circuit is grounding through the charge light??
something within the gauge cluster??
Starting at the plug on the alternator .
Is this a plug and play alternator swap from factory or is some custom wiring needed ??
Is it possible your light is coming on because another circuit is grounding through the charge light??
something within the gauge cluster??
#9
Registered User
Thread Starter
#11
Registered User
Thread Starter
Well I'm leaning to it being the Alternator. I checked all the connections and they are in great shape. It seems to start acting up after the engine warms up too, maybe after about 10 minutes of highway driving. I've driven over bumps to see if there is any change at all but it doesn't seem to be related to poor contact anywhere. I've e-mailed DC Power 3 times now but I'm still waiting for a response from them.
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