Originated From
AOL Search

2003 duramax battery not charging

I have a 2003 duramax the battery not charging light is now comming on.

i installed a new altenator last week new batterys last week new cluster today

the batterys will not charge, i will get about 2 days with batterys fully charged overnight.  what next?

Liked this question? Tell your friends about it

2 Answers

Order by
Oldest to Newest
Newest to Oldest
Votes

Regarding your Duramax battery - makes no difference what brand - I presume this is inan auto. Regardless- batteriesdont work indefinitely so I presumme - auto or otherwise - you have a means of charging the battery. I will presume an auto (car) here. 

If itis in a car (or otherwise) - do you have access to a voltmeter- any kind but one that reads the voltage - not just a  lamp voltage indicator. Needle kind (analog) or Digital (DMM)  - set it so it will read 20 volts or so - but over the voltage rating of the battery (assumed 12 volts here).

Put the tester probes directly onto the battery terminals - dig in - and read the voltage - let's say the battery is fully charged and ready to rock - it should read in the area of 12.0 volts (not important how preciise - jut note where the needle or reading is  -better yet write it down).

Next start the engine - or plug in the charger if not a car. watch the reading - it should rise to a higher value - perhaps to 18 volts and slowly drop -butwhats important is that the voltage shouldbe higher when the charger or engine is running. If so - the alternator/generator is doing its job charging.  I suspect it wont be highter and maybe even lower voltgagte telling you that you are not recharging your battery. I am almost certain this is the problem and hence the alternator circuit in the car is the problem.

2 things involved here - the alternator and regulator - many times 2 different things in a car  (IE Chrysler) or the generator in IE a FM or Ford - the regulator is built into these. You must remove the alternator or generator - take it to a NAPA or other quality parts store - they will usually test it at no charge. If bad - there you go - if not I would swap our the regulator *on the firewall usually of Chryslers.

Summary - higher voltage on the battery terminals means its charging normally

 

Better do a battery test. There is test equipment that will determine whether your devices are overused or not. Most likely they are for rent

Related Questions

Other people asked questions on similar topics, check out the answers they received:

Asked: Chaney Electric Clock Care and Use Instructions ...

Chaney Instrument Where can I get a care and use book for a model 1327A1 electric clock?

Asked: Essex electric switch company, lexington ohio ...

essex electric switch company, lexington ohio I need (2) switches manufactured by Essex Group in Ohio for a battery charger. The part number on the face of the switch is 8726.On the back is two ...

Asked: Locating Grounded Leg on a electric Delta ...

Locating Grounded Leg on a electric Delta Secondary system, what is the process?

More Questions

Battery problems

Be sure that there is water in all the cells. The put it on a charger or jump it and drive it for 20-30 minutes. If you battery will not hold a charge, it is bad. Or alternatively, the alternator is bad. JayR

Charging Kit

Qi Wireless Charger Kit for Galaxy Note 3 N9006 don't know where you can find it? I really think you should check out in the online store like amazon. You can get the best one here in the amazon with this link.. http://www.amazon.co.uk/dp/B00FPFM4AY/

Acer a500 tablet charging

Either your charger or your tablet is broken. That'll be $85 please.

Can i recharge batteries with d-7 ac

As far as I know you can.