Question about 2002 Mazda 626

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Battery dies after car is sitting for 2 days. Alt

Battery dies after car is sitting for 2 days. Alt is charging when car is running

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I assume you have replaced the battery? If not have it tested.

Check to see if a glove box light, trunk light or under hood light is staying on. Also you can remove the negative battery cable and then reinstall it. When reinstalling it, if you see a spark (other than just a very small one) there is a current draw on the battery. This current draw can be isolated by pulling one fuse at a time to see when the battery stops sparking on reconnect. It is possible you could have a shorted voltage regulator causing the current draw also. Many things can cause this problem.

Posted on Sep 24, 2009

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Take your car to Auto Zone. They will check the health of your battery for free. Show them your fuse block. They may be able to spot something. And, it won't cost you a cent for this inspection.

Posted on Oct 09, 2009

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More than likely you have something draining your battery. Like an amplifier or radio.

Posted on Sep 24, 2009

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1 Answer

My 1994 honda passport will not stay charged new altnator and new battery


is the engine running at 800 rpm or more.
if engine RPM is way low the Alternator will die out.
trans light , where is that? name it. exactly
lets focus first on the engine, and RPM
does the dash have a tachmeter, ? yes, then use that.
we keep a hand tachometer (optical , ready for no tach cars)
RPM is everything.... maxwells laws. and such.
1: rpm 800 or more all the time. rule 1, do not skip this.
2: belt to ALT not slipping'
3: battery good. terminals on battery cables tight both ends and
NOT PACKED in green corrosion, .
4: alternator case is grounded good.
5: The connection and ALT, all good.
6: you key on, and the dash charge light must turn on,
if not fix that now, on old cars, the dash light , causes the ALT to self excite, if the lamp burns out the alternator boots up DEAD.
or fails every other car starts. (does)
7: new alt is the wrong alt. zillion wrong ones, only 1 works.

Jan 30, 2014 | 1994 Honda Passport

1 Answer

2005 toyota tundra new battery and altinator both been tested and battery still dies after trk runs for 10 min. any ideas?


sounds like the alt. is not the problem.does the battery drain while the truck is sitting or running?

Jun 12, 2012 | Toyota Tundra Cars & Trucks

1 Answer

After 2 days the battery dies what is the problem


if the vehicle is being run for two days and the battery goes down, it could be a charging system problem, if the vehicle is not driven in two days and the battery goes down, try having the battery disconnected from the cables while the vehicle sits for two days, if the battery goes down, it is the battery and if the battery holds a good charge , it is an electrical problem.

Feb 14, 2012 | 1998 Jeep Grand Cherokee

2 Answers

Display on my peugeot 307 is saying battery charge fault, what does this mean?


either your battery is going bad or your alternator charging sistem is faulty, need to check, or one day your car wont start, or it will die runnig.

Mar 28, 2011 | 2005 Peugeot 405

2 Answers

My battery drains if I leave my 99 Volvo C70 convertible sit for more than a week. This is the second time in 2 years that the new battery won't charge back up. The alternator is putting out between 12.7...


You problem may be the alternator...It may be putting out voltage, but not enough amperage...voltage doesn't charge the battery, the current(ampoerage) does. have the alt checked. then if its good, make sure you have no accessories that are plugged in or left on in the car

Feb 06, 2010 | 2004 Volvo C70

2 Answers

I'm driving down the road and my truck dies, i'll jump start it and it goes for a couple of blocks and dies again. i've had the alternator and battery checked and they say they're both ok. any suggestions


It could be that you are loosing a connection to main power on fuse panel but it is unlikely. In most cases if this is happening it is because the alternator is not charging. I know you will say you have had it tested but most testing procedures do not load test the alternator and does not show the amperage output of an alternator, they show voltage. In most cases there is not enough to back up the rate of charge and run the car so it dies again...

Aug 28, 2009 | 1986 Nissan Pickup 4WD 1986

1 Answer

91 Accord LX 2 dr 4 cyl just put new battery with 5oo cold cranking amps-NO Start! Owner said car has had perpetual problems holding a charge and starting! About 3mo ago Owner charged the old Die hard...


If you manage to get it started, check the alternator output...I'm betting it is bad. Should be making no less than 12.5 with accessories all on, 13.5 to 14 with just engine running. Bad alt can drain battery even when off depending what failed inside it. Towing with a chain is not really a good idea. the cross pin in those differentials are not very good and can fail.

Jul 12, 2009 | 1991 Honda Accord

1 Answer

When we turn key car is dead. Car has been sitting for 2 months.


replace your battery, a battery discharges every day you dont run the alt. to charge it up... after a week or 2 weeks the battery would be dead, just from a car sitting not being started... if you are not using the vehicle, it is a good thing to replace the battery, and every couple days just start the car up and let it run a while to charge the battery.... if you are going to have to leave the car for a while without starting it, then disconnect the battery, and remove it from the vehicle... you can buy a cheap trickel charger for the battery when it is out that will keep it charged till you decide to put it back in.... hope this helps you...

Jun 14, 2009 | 1999 Volvo S80

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