New battery…car not driven much…once a week short distance…something is draining battery.

The first step is to measure the battery current with everything turned off. It should measure less than 50 mA. It can take 20 minutes or longer after the car is turned off and the doors are locked to get everything, all the computers etc, turned off.

The computers in the vehicle are draining the battery, try recharging the battery once a month.

Once you determine if the parasitic drain is within normal limits, my suspicion is the once a week short drive is not enough to recharge the battery.

[image] Purebred: my suspicion is the once a week short drive is not enough to recharge the battery. +1 That “short distance” drive, once per week, is not sufficient to recharge the battery after using the starter, which uses a LOT of the battery’s charge. If the OP operates the heater and …

[image] lion9car: You might need a battery tender here. Yes, a battery tender will help the battery, but unless the OP begins to drive the car as it was intended to be used, the engine and the exhaust system will suffer greatly. Note to @Dannis : In case you are not aware of it, all car manu…

[image] George_San_Jose1: The first step is to measure the battery current with everything turned off. It should measure less than 50 mA We are in agreement You used to mention a much higher number What changed your mind . . . ?!

[image] db4690: You used to mention a much higher number What changed your mind . . . ?! hopefully the three or four hundred times you told him otherwise?? :thinking: :thinking: :rofl: :rofl:

[image] pyrolord314: hopefully the three or four hundred times you told him otherwise?? :thinking: :thinking: :rofl: :rofl: I have a feeling he learned it the hard way . . . He may have measured a 500 milliamp draw with his multimeter and decided it was okay . . . only to have have a dead ba…

[image] db4690: I have a feeling he learned it the hard way . . . He may have measured a 500 milliamp draw with his multimeter and decided it was okay . . . only to have have a dead battery in the morning :wink: nothing teaches better than experience! My friend is a master plumber in Tenness…

2008 Ford Taurus - Battery drain where to start?

Maintenance/Repairs

lion9car February 13, 2020, 1:57pm 5

I agree with Purebred. You might need a battery tender here.

1 Like

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2008 Ford Taurus - Battery drain where to start?

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