Acid battery problem

[userpw]

Car starts during daytime when temperature is around 21 22C but doesn't start and gives a weak self sound like when the battery is dead, during the night and early morning when it's super cold outside, is it time to replace the battery? This situation is after 12 13 days parked car

[pwuser162557941033]

I would start by checking your starter, alternator, and battery. First, use a voltmeter to check to voltage at the terminals of the battery.

Generally, a healthy battery at around 100% state of charge should read around 12.6 volts or higher.

Around 12.1 volts means your battery has about 50% charge, while 11.5 volts or lower means your battery is almost completely discharged.

Do this right about 2 hours after your car has been sitting after a long(ish) drive, and also when it has been parked for a day or so. See if there is any difference. Your battery should not discharge dramatically on its own unless there is something in the car draining it slowly over the course of a couple days or weeks, or the battery is failing.

[userpw]

Alternator and starter is perfect got the starter serviced and alternator checked few weeks back, also battery is more than a year old

[roboxx]

Tracker?
Tracker can drain the battery over a week or so.

One year battery is not very old to start draining itself.

[def3nder]

Well. Tell us your car. Oil grade using. Or as @roboxx said. Check anything consume your car's battery while parking. Is there an issue with the only morning start or everytime you face this issue?

[userpw]

Baleno 2005, no tracker, amplifier is installed but that's been installed for a year and this started happening now, only cold starts either early morning or late at night only when car is sitting for like a week or more, when battery is charged it starts fine at night and cold morning also

[userpw]

I don't think if a battery is perfect it would drain itself in less than 15 days, a month I can understand but not 15 days or less if car is sitting

[roboxx]

Get your car's battery cells checked.

[userpw]

Ok let me get it checked

[userpw]

Funny thing is dash lights work, central locking works, even headlights work but of course dim, only car doesn't start lol I turn the key and battery begs for mercy

[userpw]

A lot of white powder is forming on top of battery in the middle after a month of cleaning it, what does it indicate? Nothing on terminals, terminals are clean

[def3nder]

Try to lubricant your terminals with grease or vaseline or petroleum jelly. And clean the terminals first and attach yhe terminals wires. Then you wont find any powder deposits on your battery.