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Battery changed but alternator test showing "Ripple too big"


Mack

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Just had a problem getting the car to start.

 

Ive recently only been doing short journeys in the car, some days less than a mile.

 

Car wouldn't crank, clicking from the starter, battery showing 10v (checked with a meter), doors sluggish to unlock. Got a bump start, ran the car for a good 20 mins. Started fine the following time and again ran it for a good 20 mins. This morning again showing 10v. I attempted a parasitic draw test but got a wandering reading. Jump started the car and ran it down the local ATS.

 

They conducted a battery and an alternator test and concluded it was the battery. The alternator test is showing 14.43V under load (all car electrics, heaters etc on, only jump started 15 mins before) however it is also showing "Ripple too big." They gave me a copy of the test and told me its not an issue so I've taken there word on it and got a new battery.

 

Does this sound right?

 

Mack

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