car battery repair

My blog http://extreme-check-engine-light-codes.com/blog/ made a car battery repair video to show you how to test and repair a bad battery. Before installing a battery on your car, always load test the battery to check if the battery cell inside is damaged. This is particularly true when installing cheap rebuilt battery which could be defective. It is also necessary to check the engine circuit drain on the battery after installing it to make sure the battery will keep charged the following morning.

In short, car battery repair includes battery load testing to check the integrity of the battery and making sure there is no battery drain after it is installed.

Category:

Autos & Vehicles

Tags:

• car battery repair
• load test battery
• battery drain

[2ub40]

yes but if u put a new battery the drain still keeps going on! how do u fix that?

[65kotse78]

@2ub40

Then disconnect your circuit fuses one

by one while you check the drain

voltmeter reading every time you

disconnect it. The last fuse you will

disconnect that shows no drain is

the culprit. Then that is where you will

find the shorted wire causing the drain.

You might need a wiring diagram for this

if the wiring shorted is verified.

[Chevenitsu]

to check for a parasitic load you need a volt meter, set it on 20volt range. find the battarys positive lead post (+) and remove it from the battary. you will use the volt meter leads to brige the gap. put the (+) from the volt meter to the cars positve cable then put the (-) from the volt meter to batarys (+) top post. if theres exessive voltage there is a problem

somethings still on!!! -adam felix"

[65kotse78]

@Chevenitsu

One of the best way to do battery parasitic load test!

Thanks!

[65kotse78]

@Chevenitsu

Do you have a battery saver in your vehicle circuit? Sometimes you have

to wait upto one hour and see if the drain

still exist.

[zillsbury]

you have to hold the load button for at least 15 seconds.

[65kotse78]

Can't argue about because you are absolutely right! Excellent comment!

Thanks!

[pv544in1964]

making sparks around the battery can be hazardous. if the battery is making hydrogen from charging a spark may ignite the hydrogen causing an explosion that could wreck the battery and blow pieces of plastic and battery acid into your face and eyes. Been there done that.

[h0354y]

very very helpful! and yea thats a easy way to find out where the drain is coming from by doing it with the fuses. gonna try it tomorrow with my car.

[XvBobMarleyvX]

thank you come again!

[timfode]

When I drive my low battery light goes on and off. Usually when my car is at high RPM's it turns on then when I let off the gas pettle the battery light turns back off. It occasionally comes off and on as I drive in town. Is this enough information to decipher if the problem is with a weak battery or if my alternator is bad? Or my belt. My belt doesn't seem loose and I have 70k miles on my car. Ponitac Sonfire 2001. 2.2 L or 2.4 L engine not sure. Can you help me :D

[8MCDonalds8]

Who can tell me how much fluid is supposed to be in each cell? Should they be almost to the top or just enough to cover the other parts in the battery?

[markymark9172]

@ chevenitsu, what are you talking about??? If you connect a 'volt' meter as you describe you get bugger all because volt meters work in parrallel, you have just told everyone to put it in series. what you are describing is an amp meter connection in series. THIS is an AMPS draw test, not a VOLT test. Oh yes learn to spell as well. People are now dummer for reading your input. Depending on the vehicle about 60-70 mA is ok.