[NCC74656]

i just bought a new battery and wanted to test it to see how it differs from my old ones. what is correct and what is wrong in this video?

 

[dhoagland]

Load test as he did in the video.
1/2 cold cranking amps for 15 seconds (not sure he went 15) in round numbers voltage should not drop below 9 volts during the test.

Proper testing procedure says battery should be full charged, so don't be alarmed if new ones fall close to the limit right off the shelf.

Typically a battery that is causing a starting issue will dive below the 9 volts well before the 15 second period.

As far as wrong I didn't see if he was wearing safety glasses

 

[PTSCummins]

One big problem. The tester he's using is not a carbon pile tester. It's an induction element tester that heats a resistive coil to consume energy.

Carbon pile is the only way to accurately test batteries. I don't care what anyone says.

Sent from my SM-G930W8 using Tapatalk

 

[NCC74656]

when i search carbon pile i think i get hte same one as in the video: https://www.harborfreight.com/500-amp-carbon-pile-load-tester-91129.html

and this on amazon: https://www.amazon.com/710-Carbon-Pile-Load-Tester/dp/B000JFJLI8

how can i tell if it is or isnt with our reling on what an add says?