Computer hardware and software
Load Testing A Battery
load testing
www.ericthecarguy.com Whenever I post a video these days I wonder if I covered everything and if I presented the information correctly. I have that feeling with this video as there is so much I could cover with batteries. Lets just call this one the “quick” version and hopefully it will get you through the process of checking the battery without too much trouble. Visit me at EricTheCarGuy.com if you get the chance.Stay dirty ETCG Due to factors beyond the control of EricTheCarGuy, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. EricTheCarGuy assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. EricTheCarGuy recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of EricTheCarGuy, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not EricTheCarGuy.
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#4 written by boogiewoogie212 1 year ago
hey eric car woulding start took it to autozone for a test they said i had a bad altenator bought new one went second time cause it would start a few days later and it said the same thing bso i got another one now it wont start agin a few days later is that the battery keeping it from starting or is it just another bad altenator
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#5 written by EricTheCarGuy 1 year ago
@boogiewoogie212 Don’t ignore the evidence, it doesn’t seem that the alternator is the problem, you can watch my video on “Diagnosing a Charging System” to help you make that determination. Make sure the battery is good and check all the connections. A good connection is key to proper electrical system operation.
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#9 written by dollman0 1 year ago
I don’t have a lot of faith in the load tester you are using because of the low current draw, in my experience those will give you a false sense of security. I just bought a digital load tester from an online vendor for a little over $100 with S&H. I like it because it will calculate the CCA available in the battery and there is nothing that gets hot around the hydrogen gas on top of most batteries…. Its a good video and the voltage should never drop below 9.6 by industry standards.
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#11 written by jambe1234567 1 year ago
@EricTheCarGuy hey eric i was testing a battery and i noticed that everytime
the ignition is turned on or the door is open the batter voltage will go from 12.6 all
the way down to 0.0 volts. and the moment you closed the door or turn ignition off the voltage would come up slowly on the DVOM bac to 12.6 within 20 -30seconds. that was the stragnest thing i’ve seen. Any Ideas? -
#18 written by joewarcupinhull 1 year ago
I have some info, wether its relevant or not im not sure xD
I was reading a technical bulletin at work, and it said that modules on the vehicle emit certain frequencies that can drain a battery. Bare in mind, i work for Land Rover and the bulletin was about a new Range Rover with dozens of modules on. It was something i just found interesting :)
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#19 written by EricTheCarGuy 1 year ago
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#20 written by bloodieduckies 1 year ago
could I load test my battery using my multimeter?every video it seems they use the dvom thingy and I checked mine with my multimeter because it wouldnt crank,I tried it and it read 11.3 volts when I tried to crank it,Will this hurt my multimeter or is this another correct way if doing it if I dont have that load test thing you have?Thank you and awesome vids you put out.
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#22 written by grixxles 1 year ago
Hi
I have a battery problem. I externally charged my battery. It read 13.9V, just before I disconnected the charger. Straight away, I tried to start the engine. The battery voltage instantly dropped to below 7V. It could hardly even engage the starter solenoid, let alone turn the engine. As the battery is only 1yr old, I was wondering if its definitely knackered.
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#23 written by EricTheCarGuy 1 year ago
@grixxles If you load test it like in this video you will know for sure but your describing a failed cell. The symptom could also be the result of a poor connection so make sure your batter connections are clean and tight especially if you have those aftermarket terminals where you pinch the wire into the connector, they have a tendency to corrode hear and cause a connection failure.
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@spelunkerd We had a similar device that we used at the dealership where I worked, it worked very well in fact so yea, I would use it. As to your other question I haven’t been on a ‘real’ vacation since June 2001, I have however done a lot of driving in that time and I think that is what you are getting at. You could actually take the tips I put into “Trippin with ETCG” and apply that toward the video you are requesting.