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
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
