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A new battery comes charged well enough to start the car, if it keeps going flat u have a problem either with the charging system or a power drain, so once car is turned off sonthing is staying on draing the battery. Or the battery could be faulty but very unlikely. To check the charging start car and put a volt meter on the terminals of the battery should be reading aprox 14.2 v if it only reads 12 something then u have a charging fault. If charging fine then have to test for a power drain and the easiest way to do that is to open bonnet or boot depend where battery is lock the vehicle up and wait about 20 mins for the car to shut down Ecus etc remove earth terminal off battery and put a 12v bulb from the earth terminal of battery and the earth lead if the light shines u have a power drain remove each fuse in turn remember to put it back after until light goes out then u have the offending circuit. Hope this helps
Sounds like a charging system problem. The engine runs off of the alternator but if it is not charging the battery properly the battery will be drained until I engine will no longer run. You need to get the vehicle to a repair shop to have the battery and charging system check for defects
Sounds like your alternator is doing nothing-the car is running only off the battery. Have your charging system checked-does your battery light stay lit? If that bulb is burnt out, that may be why the charging system is not working. On some charging systems, that bulb is crucial for the alternator to work.
Engine off, a fully charged battery should measure 12.5 volts with a voltmeter. Engine idling, and the voltmeter at the same battery should be showing about 13.5 volts. This tells you the charging system is working.
No such thing. If you have a new battery, and the alternator's testing fine then there's obviously something draining the battery. You'll need a multimeter for this. First off, once started, test the battery voltage at idle. Then increase RPM to about 2000. The idle reading could be as low as 10 Volt(since you just put a massive drain on the battery but should pick up with RPM to aboout 13 Volt at least. It could even go up to 14 Volt. If that is fine, shut down. Disconnect the neg pole on the battery. Switch your multimetre to Amps(You may have to move one of the meter wires to a current measuring connection on the meter.) Connect the leads between the neg of the battery and the cable that came off it. A reading any larger than 0.5 amps (500mA) could mean trouble. First thing I always check for is trunk and glove compartment lights. They may not be turning off with the lid closed. Next is aftermarket amplifiers. If incorrectly installed it does not shut down and drains the battery in no time at all.
try removing the battery and removing the adaptor press and hold down the power button for 5-10 seconds then let got this will power drain your system board noy turn the system on using the battery only without any adaptors to charge or power the system, try turning the system on if the system turnes on leave it turned on for a couple of hours then conenct your sysem adaptor monitor if the battery light and the battery indicator on the lower right of the screen in windows woll indicate that the system is chargin if it is then I believe everything should be fine the blue indicator is for your system if it is blue then your system is turned on and has power if it turned orange and blnking then the battery will be more likely be almost out of juice or may need charging.
How long does it stay on for? I had a similar problem. Mine would stay on for 10min then shut down. It ended up being an excessive build-up of dust around the cooling fan. If your problem is similar its worth taking a look at. Good luck, Todd
Try taking the batter out and booting using just the power cord and Vice Versus'. Also when the power is plugged in does the charging light (Battery Indicator) blink or light up? If you know the Power Supply is good, then the Mother Board may have fried. If it's under warranty, take the Hard Drive out and send it in.
You should charge the battery longer about four hours. Then the light should be green. Try. If that don't work disconnect the battery and check for anything. Connect your battery again and take a look. If it still isn't functioning please let me know.
The battery light on a notebook only uses .07 volts to light up and very minnium current.Your battery light isnt discharging your battery.Something called internal resistance is what is discharging your battery.If you are gonna park your notebook for a while and not use it. Take the battery out of the notebook. You will experence less battery drain . But a battery that is getting old may have drain even when not installed in the notebook.Try running the battery compleatly out of juce then charge it 24 hours then do this several times in some battery types this will help them hold a charge better. I hope I have been some help I own Kips Computer Service in Hattiesburg,MS. My e mail is firstname.lastname@example.org feel free to e mail