Alternator Workshop Light

[westonmac]

good evening all

small problem, my alternator workshop light came on full time when the pulley disintegrated , new alternator fitted .. now the the problem i have is that the the battery light stays on for around 5 or 8 seconds after starting and the the alternator workshop light then comes on and the goes out... this only happens first thing in the morning not during start ups and not during the day . 

this has been going on for a week now and i know that the alternator is charging the battery and all connections are sound.

the one thing i do know is that the battery is coming to the end of its life, its been struggling for a couple of months is it possible that the brief  warning light is a failing battery.

and if i was to replace the battery i believe the vartar f18 would be a good replacement.. thanks       

[chrispb123456]

Have you checked inside the battery fuse box for meltdown.

[sambulance]

Hi, if you can check the battery with a multimeter. You should get around 12.4-12.6 volts. This will confirm the battery is holding charge. I assume the alternator is new, otherwise another simple test to check its producing power when the engine is running is to turn on all the electrics and retest will the multimeter. You want to see at least 0.5v extra than with engine off. If these tests check out might be worth giving the battery a quick charge and also check the alternator lead and ecu connector are clean and tight. I did all these test when changing my alternator pulley to confirm good operation. Also is the belt tight. A slack belt could be good giving you the warning light for a short time untill the belt spools all the pulleys up to speed. Good luck

Edited January 20, 2013 by sambulance