How to check for parasitic draw in Subaru Forester?
1.After CHARGING the battery turn the headlights on for 2 min to remove the surface charge from the battery.Read the voltage. (12.6 to 12.9 is a fully charged battery depending on condition.) 2.Next start the car and read the voltage @ idle (Higher or lower now?) 3.rev to 2k and read the voltage.
What to do about a dead battery in a forester?
If an unacceptable level of drain is detected (I’d guess say more than 50 mA) then the car should be hooked up to a professional scan tool (with a professional technician behind it) to trace what’s causing the drain. Might be tricky to track down in terms of being time consuming, hence dealer’s reluctance to dive into it.
Is there a problem with my Subaru Forester battery?
Car was totally dead about 6 weeks ago and they replaced the battery at the dealer. 6 weeks later, the car is dead again and they have no answer except to recharge the battery. This is a huge problem and I have no idea what to do. I’ve contacted my sales agent who is going to try and connect me to a Subaru specialist (mechanic) to investigate.
What should the draw be on a Subaru parasitic battery?
Make sure your voltmeter is set to milliamp (mA) setting. Connect the test leads of your voltmeter to the negative battery cable and the negative battery post. Remove the bypass wire you installed in Steps 2 and 3 and measure the current draw. After the five-minute stabilization period, the measured draw should be a maximum of 150 mA.
Car was totally dead about 6 weeks ago and they replaced the battery at the dealer. 6 weeks later, the car is dead again and they have no answer except to recharge the battery. This is a huge problem and I have no idea what to do. I’ve contacted my sales agent who is going to try and connect me to a Subaru specialist (mechanic) to investigate.
1.After CHARGING the battery turn the headlights on for 2 min to remove the surface charge from the battery.Read the voltage. (12.6 to 12.9 is a fully charged battery depending on condition.) 2.Next start the car and read the voltage @ idle (Higher or lower now?) 3.rev to 2k and read the voltage.
If an unacceptable level of drain is detected (I’d guess say more than 50 mA) then the car should be hooked up to a professional scan tool (with a professional technician behind it) to trace what’s causing the drain. Might be tricky to track down in terms of being time consuming, hence dealer’s reluctance to dive into it.
Make sure your voltmeter is set to milliamp (mA) setting. Connect the test leads of your voltmeter to the negative battery cable and the negative battery post. Remove the bypass wire you installed in Steps 2 and 3 and measure the current draw. After the five-minute stabilization period, the measured draw should be a maximum of 150 mA.