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Question
mensoft
Hi AL Experts ,
I need your advice again on some electrical issue . but i can't tell exactly this is electrical or mechanical issue .
least week i drive may car around 25 km in the night and head lights are on . after next day morning my battery is not charge to start the engine. This battery is not even two months its a brand new battery. so i push the car and start and kept for few min and off the engine and tried to start again and this time its able to crank and start the car.
And just to verify the alternator is working fine while engine is ruining i removed the + wire from the battery and engine is running. so i have no doubt about alternator.
So i dive the car during the day around 10-12 Km and went to the battery shop to show the battery. during this ride i stop the engine 2 times to visit to some other places and when i went to the battery shop i have drive more than 10km.
The issue is in battery shop when they check the battery they said it don't have the correct gravity on the acid and there is some charging issue. i explained them what happens and they check the charging also and while head lights are on and said alternator current is not enough to charge the battery. Next i went to my electrician and explained. he checked all the things and said there is some issue with alternator pulley.(this i can agree because i cant tied my fan belt it get damage) meany times i have changed the belt and Im keeping extra standby.
My questions are ,
1) if a battery dead and once do a jump start how long engine have to run to get it charge .
2) how the gravity can get high once it go down. ( as electrician explains it have to low charge for one day) how long it will take to run from alternator ?
3) what is low charge?
4) when head lights are on to charge the battery how much voltage should provide from alternator ?
5) what is the correct tension for the fan belt.(guy at spare part shop said when its tied it should have 1inch play up and down freely) I feel its too lose.
6) when my battery goes down can i charge it from a old UPS ? then how long i have to charge it ?
My car is Lancer A72 (Flaght light) battry is 12v 45Ah . this week i hope to do the alternator pulley repair and will keep you guys update.
Thanks.
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