986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post

BIGBLUE1212 · 04-24-2025, 04:39 AM

Hello All,

I know I have seen this topic before, but I think I have some interesting new info regarding the battery drain issue on the 986.

I have a 2000 Boxster S. I noticed the battery drain issue that a lot of you are having. I have a 1AMP Noco battery charger/tender that struggles to charge the battery. When investigating the battery drain issue and leveraging a lot of the suggestions on this and other forums, I came across something interesting. A few years ago I installed a bluetooth adapter to the back of the factory CR-220 radio. It uses the CD Changer input, which was open on my car as it was not equipped with that option from factory. What I noticed was with the car off, and whether it was unlocked, locked (with or without the fob) and everything presumed to be off. The bluetooth adapter was still active and my phone could connect to it. The radio looks to be off and I also did the disable flashing alarm LED trick.

Now this begs the question. Where do I go from here?

04-24-2025, 04:39 AM	#1
BIGBLUE1212 Registered User Join Date: Jun 2021 Location: Milton, Canada Posts: 2	986 Battery Drain Hello All, I know I have seen this topic before, but I think I have some interesting new info regarding the battery drain issue on the 986. I have a 2000 Boxster S. I noticed the battery drain issue that a lot of you are having. I have a 1AMP Noco battery charger/tender that struggles to charge the battery. When investigating the battery drain issue and leveraging a lot of the suggestions on this and other forums, I came across something interesting. A few years ago I installed a bluetooth adapter to the back of the factory CR-220 radio. It uses the CD Changer input, which was open on my car as it was not equipped with that option from factory. What I noticed was with the car off, and whether it was unlocked, locked (with or without the fob) and everything presumed to be off. The bluetooth adapter was still active and my phone could connect to it. The radio looks to be off and I also did the disable flashing alarm LED trick. Now this begs the question. Where do I go from here?