What a great help! Found one more needing replaced. Imagine putting it all back together and finding that out the hard way! Thank you!!

Excellent! I actually gave up after trying to test cells and replaced a battery. I won't do that again!

Genius idea, thanks

This is really helpful for future reference....apparently I had all I needed already😂

thanks for the info! really helps me out just diving into my battery problems

That was really helpful Thank you 🙏

thanks for the prompt reply..

Nice!

❤❤ Great tricks.. Thanks Mate

So what should me ohms range be? Like 4.5 to 5.5 or what? Please let me know.

Thank you thank you❤ so much man🙏🏽

won't the resistance feature on a battery charger measure this just as precisely? I'm guessing if anyone has yanked their battery, they are preparing to charge it with such a charger. My sky RC charger for example can measure resistance. Or is that inferior in some way?

I saw a video, way back, where they used a regular load tester on a newly assembled battery and went right along checking each module, disregarding polarity. The tester was one of the ones that's box shape w/ all the holes in the front and a meter above that. There was a switch at the bottom and it had short cables with large alligator clamps. HFT $20, I think the type was. 100 amp carbon pile. I'm sure there is no reading of internal resistance but it shows the draw=down over a few seconds. I wanted to know your opinion on all that. Specifically, does internal resistance correlate to voltage draw down?

thank you for this great video. What does this device do differently than simply using a multimeter to test resistance?

When you replaced the bad module, did you have high voltage difference compared to the other modules? I replaced a module and showing 1.2 voltage difference and throws the "check hybrid system" p0a80 code on my odb2 reader. I need help.

I just replaced 3:54 all the blocks of my Lexus CT200h (same as prius.) After all done, the P3021 came up; it indicates that block 11 becomes weak. Any ideas? Do you think one of the blocks came bad? I refurbished all the blocks my self at once with new cylindrical ones. 😢

What from the reader told you it was cell 5? I’ve got the p0a80 not sure which cell(s) though

I used the onwei tester and it come out as all the modules are bad. It also give you an option to choose the kind of battery, like agm, lithium and 4 others. Resistance was around 5.4 and 6 all across. I don't think this really work good for hybrid battery module.

A question. Once reassembled did this help resolve the issue and if so in your experience what was the best internal resistance as a guide? Thanks for the video. A great idea by the way.

Wow ! Thank you

Chris, your test method was indeed creative. But are there devices more suitable for this kind of testing? The battery tester you used was originally designed to test the 12v starter battery, not for a 7.2v (nominal) module. Other than worrying about the reading would be inaccurate, I do not know how that "500A cold cranking amp" was tested, and I wouldn't attempt (until I watched your video) to use it, for fearing that it would draw too much amps from the battery module thus potentially damaging it.

i used the tester you used. results voltage abovr 7.55 all cells resistance 5.00 milli ohms, all 100 healthy. but says all cell have zero charge left. what is the solution.how to charge ?

Unfortunately doesn't work that way. I used this Viking battery meter on my Prius 3rd generation cells and it showed 100% state of health, 7.95V on everyone and very low internal resistance. Even though my battery had a problem on block 13. I had to run a Dr. Prius app test to see it and disassemble the battery again to replace it.

car stopped on the road 2 week ago. can the battery be reconditioned ? getting a dual charger/discharger.

silly question but is the 2012 Prius battery same layout?

Can I send it to Japan?

how do you know number 10 is bad, you said the OB2 said number 5 bad, but it is number10