[beavertonbenz]

Hi Fellas..My car came with a trickle charger attched to battery...Just curious to know how difficult or expensive to track down power drain problem. I can go a couple days without charge before battery is too far gone, replaced battery a couple years ago, thought might solve the problem.

 

[Ears]

Hi Fellas..My car came with a trickle charger attched to battery...Just curious to know how difficult or expensive to track down power drain problem. I can go a couple days without charge before battery is too far gone, replaced battery a couple years ago, thought might solve the problem.

Let us know if the climate control (A/C) servo is kaput... common battery killer on cars of your vintage...

 

[momirj]

Are you sure that it is battery drain? Have you checked if it is charging properly.
Tracking down the battery drain should start at the battery. You should measure (any instrument capable of measuring electrical current will do). Engine stopped, keys out, doors closed. Take the terminal off the battery, connect the instrument and read how much current is passing through. at the steady state I'd expect no more that 50m Amp. That would be a clock.
Anything more than 150 mAmp would mean that you have a drain. Check the boot light, although it should be 5W bulb. 5 W bulb would take 100 hours to drain 50AMPH battery.....


Sent from my Autoguide iPad app

 

[tdoriot]

Not sure if the alternator is isolated in a off condition on these cars. If not, weak or bad diodes can discharge a battery.

 

[yka]

Main Switch

My previous battery died because of it was deep emptied time after time. I replaced it by Yellow Top Optima - this seems to be much more robust during the winter garage periods.

I have also added an electrical Main Switch to prevent the total empty battery. Elelctrical Main Switch is easy and fast to operate - the MS control rocker switch in the hard top connector bay.

 

[beavertonbenz]

Battery Drain...

Let us know if the climate control (A/C) servo is kaput... common battery killer on cars of your vintage...

Yes the AC and heater are on the fritz...I just don't know what is causing the drain, need to look into it, tired of always having to keep car plugged in.

Thx, BB

 

[yka]

Measure the drain currents fuse by fuse - it will quide you into the right direction.