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how to test a battery?

453 Views 3 Replies 3 Participants Last post by  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?

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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
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