Purchased a battery (616C) from the Automobile Association in June last year. All went well until February this year. To date the AA had to boost the battery on four occasions. On the 3rd occasion, the battery was taken to the Manufacturer, National Battery, to be tested. The prognosis was that there is no problem with the battery.
On the 4th occasion, Tuesday last week, the AA technician did a parasitic drain test on the vehicle. The test proved that there was no battery drain on the vehicle.
On Monday morning, there was a slight hesitation on startup. Took the car on a long run and sped up to 120 k’s. On returning, disconnected the battery cables and tested the battery with a multimeter. Reading was 12.31. On Tuesday afternoon the reading dropped to 12.17, this morning it was 12.14.
Based on the above drop in readings, can I use this info to prove to the AA that the battery is faulty?