D2 charging rate

**Noki 3.9** · 21st March 2007, 07:43 PM

I forgot to say that if you find a higher voltage at the alternator than you get at the battery then there is voltage drop and you will need to replace the wire between the two. Make sure you put in a fusable link though incase there is ever a short so to minimise any damage that may happen.
I would use at least 8 mm wire to make sure that you get the most charge in your battery.

**feral** · 21st March 2007, 08:24 PM

Right 'o lads.....clarification time.

The vehicle is a STANDARD D2. No special features or modifications have been performed, that is the alternator is standard and the battery position and wiring is standard. A new recommended battery was put in only a year ago from one of our preferred suppliers for Aulro.

The indicator glass continually shows 'Low Battery Charge' but the auto elec's have tested the battery, holds charge and appears ok.

I will be looking at all the tests this thread has given so far on the weekend and if this does not resolve it the car will be going in to be checked.

**drivesafe** · 21st March 2007, 08:49 PM

Hi Lyndon, your battery is showing the correct state because it is not being charged properly.

First off, try charging your battery with a 240 volt battery charger and see if it corrects the indicator.

If it does then you will know your alternator or more correctly, your regulator is not working at the right voltage.

Cheers.

**Noki 3.9** · 21st March 2007, 08:59 PM

Hey DriveSafe, I should give you a job with us because thats what I was going to suggest.
Quite often we find that the indicator wont change from white to green but the battery is performing good. This is from acid stratification and is fixed simply as mentioned by charging with a GOOD charger not a $2 type. I have a miracle charger so it seems that can charge all the dead batteries that others cant, basically its 30 amp variable charger , ok enough dribble....................fix your low charge rate and your indicator should always be green. It COULD being the operative word be why your last battery failed.

**drivesafe** · 21st March 2007, 09:45 PM

Hi Noki, thanks but I have more work than I can handle at the present and it doesn’t look like easing off in the near future but I hope to call in on you some time in relations to getting some info on suitable batteries for use as auxiliary batteries in Disco 3s.

Cheers.

**Graeme** · 21st March 2007, 10:21 PM

Originally Posted by Noki 3.9

I forgot to say that if you find a higher voltage at the alternator than you get at the battery then there is voltage drop and you will need to replace the wire between the two. Make sure you put in a fusable link though incase there is ever a short so to minimise any damage that may happen.
I would use at least 8 mm wire to make sure that you get the most charge in your battery.

It aint necessarily so...

I had a lower voltage at the battery compared to the alternator on my 84 RR and tracked it down to a poor connection between the alternator and the block due to a bolt not entirely tight. There was a potential difference between the alternator body and the engine block.

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