I recently purchased a 1 year old Boxster with 12,000 miles. It is fortunately still under warranty. Roughly every 3 weeks the battery completely drains. After it is jump started, the dealership can not find anything wrong. They have replaced the battery, and the same thing happens. No faults on the…

The only report I have of battery voltage was 12.47V. This was checked after the car was jump started. We sort of brought the car to the shop without jump starting the second time it happened. In order to tow this car you have to use a tow hook, which is located under the front hood, same as the bat…

Well 12.47 volts isn’t what a good fully charged battery should at. Something like 12.8 volts or slighly higher would be better. The car still should have been able to at least make an attempt to start at that voltage though. Since the first report stated there was nothing wrong with the battery it …

A fully charged battery – if it has been sitting overnight – might well read 12.47 volts the next morning. It would depend on the battery chemistry used – it varies brand to brand – and the temperature. Provided it measures around 12-13 volts, and you have no record of past measurements to comp…

What you say is true @GeorgeSanJose but at this point the battery condition isn’t really in question. It is new and it isn’t causing the real problem.

So here’s the official response to our complaint to the first dealership "Our experience and Porsche’s stance is a vehicle that is driven on an average of 500 miles a month is not sufficient to keep the battery fully charged and operational" Should I go to the media with this now or give Porsche No…

hmmm … well every car is different. 500 a month is enough to keep my Corolla’s battery fully charged. I know this from experience. But it might not be enough for other cars, like your Porsche. There is a limit on low use for every car where the battery won’t be charged enough from the amount …

I sincerely wish that I could be of more help on this matter but I just flat have no idea what’s going on here. From a purely mechanical standpoint, that 18 Milliamperes of current draw is not enough to run a battery down in a few weeks times. It would seem that there has to be an intermittent flaw…

Not sure if mentioned prior, but it is possible for a battery to self drain if there is any battery acid remnants or conductive contamination on the surface of the battery. This current wouldn’t be measured in a current draw test, as the current goes along the surface of the battery from the plus …

So Porsche North America’s official response is that Porsche cars must be driven at least 15 miles each day (not just an average of 15 miles a day) and if they are not there is a chance of battery drain. For this reason they recommend a battery maintainer every day you do not drive the car, otherwis…

Maybe it’s part of what Porsche owner’s call the “PAT”. Porsche Added Tax.

Battery keeps draining in Porsche Boxster

Maintenance/Repairs

db4690 August 9, 2013, 3:11am 53

@mrstretter

“So perhaps this car is functioning as designed”

Not a chance

The bottom line: Porsche is copping out.

By denying there is a problem, they are washing theirs hands of you and the car.

Lawyer time

Topic		Replies	Views
Lexus RX350 Battery Drain Problems Maintenance/Repairs	28	30331	March 9, 2022
Really? Is this possibly true?-ALL car batteries die after 3-5 days? Maintenance/Repairs chrysler , computers	47	41211	December 27, 2013
2009 Chevy Aveo - Battery dies overnight, but there's a twist Maintenance/Repairs electrical-wiring , chevrolet , batteries , aveo	57	53272	November 27, 2020
Accidentally drained OEM car battery Maintenance/Repairs toyota , rav4	50	5915	June 14, 2018
2014 Buick Verano - Battery issue Maintenance/Repairs buick	34	6623	October 22, 2024

Battery keeps draining in Porsche Boxster

Related topics