Porsche Battery Maintainer

[teacher]

just a moment to say it worked, I bought the charger from Porsche even though I had a friend start it up from day to day...I'm sure it's fine and it runs grrreat today so thanks for all your support and help...this is a good blog and my thanks go out to you all =)

[tomk17]

When laying up the car for 2-4 weeks do you guys just plug in the battery maintainer and let it do it's thing? Plugged in my 06' 987 and the red light was on for maybe 1/2 day then out. Have not really seen it come back on, who knows maybe it comes on for a few hrs when I not looking/ Maybe my battery being rather new just holds up well.

Alternativly, I could plug it in for a week, unplug it for 1-2 days, plug back etc.

[thomschoon]

I leave mine plugged in two weeks out of the month using a 1-2 amp Black & decker maintainer from Walmart (cost $17). It pretty much charges for a day at 1 amp to make up for the clock & alarm, after 7 days the locking system is suppose to shutdown to save the battery so there really shouldnt be much charging at that point.

The other thing is that many folks have someone start their car and let it idle, that is always debated as does it do more harm then good as the oil never warms up enough to drive out the moisture and you could be getting more fuel dilution from a cold start, just wondering what folks think

[MNBoxster]

Originally Posted by thomschoon

I leave mine plugged in two weeks out of the month using a 1-2 amp Black & decker maintainer from Walmart (cost $17). It pretty much charges for a day at 1 amp to make up for the clock & alarm, after 7 days the locking system is suppose to shutdown to save the battery so there really shouldnt be much charging at that point.

The other thing is that many folks have someone start their car and let it idle, that is always debated as does it do more harm then good as the oil never warms up enough to drive out the moisture and you could be getting more fuel dilution from a cold start, just wondering what folks think

Hi,

Starting the car to maintain the battery isn't the smartest thing. 75% of the wear an engine receives during it's lifetime comes from starting it. This is why high mileage Highway cars have traditionally been more desireable than the one the little old lady drove 2 mi. to church on sunday.

The Highway car may be started once for every 100-200 mi. or more of driving while the little old lady starts her's 50-100 times to cover the same mileage. Starting the car unecessarily, or for few miles or to freshen the Battery is a bad thing. A low ratio of starts/miles is a good thing. This is why a maintainer can make sense, especially for a seldom driven car.. Hope this helps...

Happy Motoring!... Jim'99

[NickCats]

Originally Posted by tomk17

When laying up the car for 2-4 weeks do you guys just plug in the battery maintainer and let it do it's thing? Plugged in my 06' 987 and the red light was on for maybe 1/2 day then out. Have not really seen it come back on, who knows maybe it comes on for a few hrs when I not looking/ Maybe my battery being rather new just holds up well.

Alternativly, I could plug it in for a week, unplug it for 1-2 days, plug back etc.

My car is sitting on the Porsche battery maintainer right now. I would just plug it in and let it do its thing. When the light is on, it is charging the battery to full capacity. Once the light goes off, it goes into "maintenance" mode. No need to plug and unplug.

Hope this helps...

Nick

[drburton]

If you want the light to go on for sanity reasons open your car door and the maintainer light will go on to recharge the battery.