Charging problem

Hi everyone I've got a discovery 3 the battery light has come on. I've fitted new alternator and battery. But light still on. Please any idea. Thank in advance

Hi

May I ask what. Make of alternator was fitted , plus make and size of battery plse

Have u checked all the alternator connections on the back to ensure there clean , connected properly , etc

What voltage have u got with the engine off and then running

Have u checked the large earth cable that’s hidden behind the drivers side wheel arch liner

U can use a jump lead to go from the earth battery post to a good earth point , normally the engine hoist bracket is a good place but best to use a multimeter prior to that to ensure it’s a good earth connection

Talking of connections there is an extra cable on the positive side of the battery that bolts to the battery clamp , might be an idea to undo that bolt , clean up the cable terminal with a wire brush, then reassemble using some copper slip etc to make sure a good contact , personally used a dremel with a flapper sanding disc

If u have access to a diagnostic reader that will also be useful to see if there are any codes , if there are , plse take a note of them and clear everything , then rescan the vehicle to see if any come back

Finally what year and engine have u got plse , thks and apologies for all the questions, it just gives us a basic understanding of what u have , can of course go deeper in the fault finding but these are just basic starting points to check so the more detail we have the better

Hope that helps

gstuart said:

Hi

May I ask what. Make of alternator was fitted , plus make and size of battery plse

Have u checked all the alternator connections on the back to ensure there clean , connected properly , etc

What voltage have u got with the engine off and then running

Have u checked the large earth cable that’s hidden behind the drivers side wheel arch liner

U can use a jump lead to go from the earth battery post to a good earth point , normally the engine hoist bracket is a good place but best to use a multimeter prior to that to ensure it’s a good earth connection

Talking of connections there is an extra cable on the positive side of the battery that bolts to the battery clamp , might be an idea to undo that bolt , clean up the cable terminal with a wire brush, then reassemble using some copper slip etc to make sure a good contact , personally used a dremel with a flapper sanding disc

If u have access to a diagnostic reader that will also be useful to see if there are any codes , if there are , plse take a note of them and clear everything , then rescan the vehicle to see if any come back

Finally what year and engine have u got plse , thks and apologies for all the questions, it just gives us a basic understanding of what u have , can of course go deeper in the fault finding but these are just basic starting points to check so the more detail we have the better

Hope that helps

Click to expand...

The Battery is an Exide 12v 100Ah 850A Alternator is an 14v 150A from Ajay car part. Battery reading at standing 12.94v running 14.4v.
Thank you.

Mooncat63 said:

The Battery is an Exide 12v 100Ah 850A Alternator is an 14v 150A from Ajay car part. Battery reading at standing 12.94v running 14.4v.
Thank you.

Click to expand...

2007 year 2.7 engine