Question about 2003 Buick Rendezvous

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Battery suddenly got discharged.How to remove battery for charging

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Charge the battery on the vehicle its easier

Posted on Sep 03, 2010


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The battery may be defective. It will charge but will not hold the charge.

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Battery discharge when shut off is due to a connected add on in the truck,( 2way radio, some item plugged into the power plug, ETC). Also a bad battery will lose it's charge when not being charged,( I've seen brand new batteries do this, Have it load tested, Also the alternator can discharge the battery if the diode is defective. Depending on wiring set up the engine can shut off when you disconnect the positive cable.

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Alternator light came on all of a sudden then all lights on dash came on and car wouldn't start after that

Maybe your battery is discharged - did you check that out? Alternator warnings are there to let you know that the charging circuit is not working. And when that happens batteries discharge, and car will not start!

Sep 10, 2015 | Cars & Trucks

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Can the car alarm kill your battery but you can start the car but after you turn it off battey died again

sure, if you let the alarm drain the battery, this can destroy any stock battery.
The car batteries are not like golf carts and are not deep discharge rated. (so can be damaged)
so charge the battery, if it wont hold a charge, it is bad.
if it discharges silently, and darkly parked , that is phantom discharge
if is discharges , driving that is a engine charge system failure.
parked over night discharging is phantom discharging.
if the alarm goes off and stays in alarm , then dont use, it.
if the battery is happy with the alarm defeated then the Alarm is bad.

The battery measure 12.6vdc charged,(rested) "voltmeter"
and running measures, 13.3 to 15vdc at idle.

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Dec 05, 2014 | 2000 Chrysler Cirrus

1 Answer

I have a 1995 integra. i have charged the battery fully and it will still die on me slowly, like theres something left on in the car or something. i have disconnected my alarm system to see if that was the...

Recharge the battery fully, remove a battery cable (+ terminal is recommended) and leave. Connect it after a day or two and see whether battery has discharged.
If the battery has not discharged, there is a short somewhere.
If the battery has discharged, then it is time to replace the battery. Your battery cannot hold the charge. There is nothing wrong with the wiring or equipment.

Aug 31, 2011 | Acura Integra Cars & Trucks

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When driving car it will all of a sudden start going dead. Battery will discharge have to recharge or boost off even with new battery it drains the charge driving about 3-4 miles is this a problem with...

It sounds like your alternator is defective and draining the battery.
Since the alternators function is to charge the battery, if it's not working you will be running off battery power. With a short in the alternator that would explain the sudden drain on the battery.

BUT before you buy anything have the alternator tested first. It could be something more simple like a bare wire grounding out against metal, which would cause the problem.

Simple things first, so test it before you buy a new one. A parts store will test it for free.

Even still I suspect the alternator. A new will cost $160 maybe more.

Feb 16, 2011 | 1992 Lincoln Town Car

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I have 2005 Chrysler Voyager - battery flattens overnight, and will not start. I am doing short journeys which I guess does not help. Nearly new battery, charging system good, and nothing apparently using...

The battery will not discharge unless there is a drain. When the car is shut down disconnect the negative battery terminal. Put a DC ammeter between (in series) the battery negative terminal and the disconnected cable. The drain due to electric clock and immobiliser circuit will be in the order of 30mA (0.03 Amps). Remove each fuse in turn and note any drops in the current drawn. At some point you will encounter a fuse which when removed drops the current drain, it is this particular circuit that is primarily the cause of the battery discharging and it will need closer inspection to detect the fault within it. If you can leave this fuse out to prevent battery discharge.

Dec 05, 2010 | 2004 Chrysler Voyager

2 Answers

Hello, the battery of my jetta 91 car is suddenly discharged , can you clear the reasons please

There may be a surface discharge. this occurs when the vehicle still draws current from the battery even when the car is off.the problem could have been going on for a while now and the battery just cannot sustain in a charge any more.
most times this occur in the morning when you start. a simple test is to disconnect the battery at night an see of it starts in the morning the battery held its charge and the car is the problem..
Other Reasons:-
the lights was left on
a door was left open
battery not holding charge
no battery water
the alternater not working well to charge the battery

Mar 02, 2010 | 1991 Volkswagen Jetta

1 Answer

Battery discharge light is shown. After car is

Check alternator for charge,somebody was boost and fray diode inside alternator,start car when car is runing remove positive cable if car stop you need new alternator

Apr 22, 2009 | 1999 Oldsmobile Intrigue

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