Battery requires jump every few days. Now every other day. Checked with Honda dealer battery full charge under warranty they won't replace since it has good charge. What else could be draining battery? Went to Pep boys they said battery cable was loose. Battery still died. Alternator check ok. What could it be?
It seems that the battery is not the problem. It might be that you have a short our something that is draining the battery while the car is off. Have you had any accessories added to the car that require battery power? Anything plugged in etc.?
SOURCE: 2004 suburban 1500 battery keeps going dead
Something is obviously putting a drain on the battery, if all the things you had checked are good. If you disconnect the negative terminal on the battery touch it back, it should spark a little, but not alot. If it sparks quite a bit you know something is staying on that shouldn't. Possibly a glove box light, or if your truck has a light under the hood the mercury switch in it may have gone bad causing it to stay on. If it's taking 8 days to go dead you'll be looking for something small. I hope this helps.
SOURCE: 2005 Dodge Caravan with Dead Battery. Replaced
Disconnect battery from vehicle overnight to check for internal battery drain.......just take one of the cables off.
If the battery is still up and starting the vehicle after being disconnected after a day or two......the drain IS in the vehicle and will have to be checked again.
Do it yourself.
Buy a cheap 12 volt test light.
Place it between the cable you removed before.
One end on the battery post and the other on the cable end.
Now....with the key off......
If the light glows brightly....you have TOO MUCH drain.
We want a dim glowing light.
The dim light is just the memory circuits in the electronics and OK.
With the doors closed....take out one fuse at a time until the light glows dim.......the fuse that dims the light is the problem circuit.
If no fuse dims the light...remove relays one at a time.
Remember....some fuses and relays could be in the engine compartment and under the dash.
If no relay dims the light disconnect ALL alternator wires.
Remember....anything that uses power will make the light glow ....keep those doors closed (we do not want interior light drain affecting the test ) and if you have a under hood light check it first by removing the bulb.
We do not want false readings.
SOURCE: battery keeps draining but tests good and is only
Hello, This type of problem is usually easy to solve with a little investigation. First with the loose belt, usually there is only one belt, a Serpetine belt, which drives the Alternator. If your vehicle has this single belt system it has a part called a Tensioner. The Tensioner can get weak and allow slippage of even a new belt. The simplest way to ensure a good grip on a new belt is to replace the Tensioner at the same time.
The squealing sound is an indication of a loose belt. The reason it squeals in the beginning is that you used a lot of power to turn the Starter. It would be a good idea to get a Starter draw test on the car at Autozone, Oreillys, Advance or any parts place which will test it free. The Alternator is really working hard to replace the lost power and the Alternator is harder to turn when it is producing a lot of power. The hard turning causes the belt to slip if the belt is loose.
If you have more than 1 belt on your car, the belt that runs on the Alternator pulley is the one that is loose. When you have several belts they are tightened by adjusting slots in the mounting brackets.
Other problems caused by loose belts are poor water circulation by the water pump, poor action of the A/C, and your Alternator can discharge when driving. How it can drain while driving is the Alternator needs to put more power than your car uses. If the Alternator is slipping it can not make enough power to do its job.
Another main reason for a dead battery is a power drain overnight. Someone needs to hook up a test gauge after the car is turned off and setting. There should be almost zero power drain with the exception of the clock, onboard computer, and AntiTheft if equipped. The biggest culprits for overnight power drains are the Rear Window Defroster, the Ignition switch, a stereo system, and the power window motors.
Once you fix your loose belt, your car may be fine. If not, observe how much spark the battery cable has when you disconnect the NEG cable and reattach it. It should only have a flicker, not a Zap. Disconnect the battery overnight until you find the problem, then connect the battery when you need to use the car.
I hope you find my solutions helpful and understand more about your problem now. Depending on your situation, there are some portable batteries with jumper cables, air compressor and even a light in them. When kept charged they are reliable for about a year. A device like that could get you through the Winter.
SOURCE: I have a 1999 Lexus LS-400. Appears to have
firstly check with your car scanner ,read for fault code, as my experience the alternater fault due to leak in alternator regulator ,check with multimeter for your voltage, at least with light and air con on, it should at least 13.6volt.normally with alternator light on when engine running.conform alternator,replace one thank you
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