battery light

[qkfxxxx]

my car's battery warning light will appear on the speedometer sometimes when im driving. it isnt suppose to right? what could be the problem?

 

[ravingill]

ur battery gettin weak la....bro..thts the purpose of the light !!!

 

[Maxx]

i think ur alternator going to die.
it cannot charge ur battery properly.
have them check asap.

 

[5115]

try to jump start ur car with other's battery then unplug the positive cable,c whether the engine will still running.

if yes,change battery
if not,go find an alternator & battery

 

[qkfxxxx]

nahh...did some research just now...apparently that battery warning light has nothing to do with weak battery at all. ahah. made me wonder for a while cos i just change my battery beginning of the year. yeap alternator is most probably at fault. not enough charge

 

[ravingill]

dude thn get it replaced bro...as it will giv big probs soon.....

 

[Vagabond]

or it could be just the alternator belt.

is there any squeeking or squeeling noises coming from the engine bay?

 

[5115]

fyi,if alternator fault,it will affect ur battery lifetime

 

[Vagabond]

i'd rather have a defective battery than a faulty alternator.

for rare model cars, alternators can be a b***h to source.

 

[Maxx]

sometimes the alternator just need new carbon brush. i diy mine. only cost ~rm3 for the carbon brush.

alternator

dismantle
http://img.photobucket.com/albums/v237/max_xpert/G100/alternator diy/Image020.jpg

the carbon brush
http://img.photobucket.com/albums/v237/max_xpert/G100/alternator diy/Image012.jpg

old and new brush.

desolder old ones, and solder new one.
http://img.photobucket.com/albums/v237/max_xpert/G100/alternator diy/Image017.jpg

then reassemble back.

im checking the alternator why it isnt charging my batt.
actually the main cable (+ve) from alternator to batt disconnected (melted). :shocked:
since already removed the alternator, i just go on inspect it and change the brush. :regular_smile: