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Hi I was wondering if you could help solve my ongoing flat battery occurrence. The car is a 1998 Subaru Forrester petrol permanent 4WD Automatic 1990cc. For past three years after installing a new battery if left in the garage for 1-4 weeks the battery discharges and clicks but fails to turn over. There is no evidence of lights being left on or doors left open. The battery has been tested two independent credible auto electricians who both agree the battery is not at fault and cannot identify the reason for the battery discharging. Please see attached the battery, charging system starter and drain test results from the auto electricians. https://1drv.ms/a/s!AiB8yIzUeXO3jRRkL1gF137J-Kcp
The battery is now 7 months old. The vehicle has not been modified and no additional electrical equipment has been attached except for a CD stacking system. There is 100,000 kms on the clock.

Many thanks in advance for your thoughts.

Ginny

Hi Ginny,
I would recommend you take the vehicle to an Auto Electrical workshop and ask to do an electrical system current draw test. This will see if there are any components drawing excess amount of battery voltage that will make the battery go flat too soon. They may need to disconnect some door light switches or electrical units in order to see where any potentials for current draw lie. There is an industry standard of maximum acceptable draw before it's considered as having a fault.