Help? Jammed passenger door...battery failure

[Hendrikus]

For the first time this winter, I put the 997 C2 (Gen 2) to bed in the garage, and connected a Porsche Charger to the cigarette lighter. Unbeknownst to me, however, someone shortly thereafter disconnected the plug from the socket and the car has been sitting there for 2 months or so without charge.

Discovering last night that I have a completely flat battery, without any juice at all, I have put the Charger on and after 12 hours or so, it is coming back to life. However, the passenger door will not open or shut at all, and a few other features not working - also getting a PSM failure warning light and a few other flashing lights! Question is: am I best to try and take it for a drive (the engine seems to want to start) and then see if everything sorts itself out, or should I leave it on charge for a lot longer?

 

[tscaptain]

Personally I would phone my local friendly Porsche Centre and ask them. However, failing that, if it was me I would probably start her up and take her for drive and see what I'm left with! []

 

[garyw]

You will get all those electronic issues after a battery failure.
A long run may indeed charge the battery to it's full capacity but sometimes the faults need to be cleared by the OPC..

garyw

 

[Lancerlot]

Dan,

It takes a long time for a discharged battery to fully recharge. You don't say which charger you are using but if it is a Ctek this is just a trickle charger and it could take a week. Try a charger providing a least 4 amps, connect direct to the battery not via the cigar lighter and leave it going for 24-36 hours, then take the car out for a drive.

Depending on its age, it's possible the battery is now damaged and will not fully recover. It will not hold its charge - in which case a replacement is required.

The passenger door problem should resolve itself once the central locking system is up and running again.

Regards,

Clive.

 

[rich mich]

you will get a psm failure warning when the battery is low or has been disconected, all you have to do is take it for a drive and it will do a automatic check of the inputs and then it will reset itself, happened to me when i changed my battery on the 987 last year ,also on my old battery when a tried to start car it just made a clicking noise, starter did not turn over and headlights flashed on and off and windows were going up and down on their own (new battery fitted all is ok)fault was a fault cell in battery

 

[Hendrikus]

Thanks all. You were all right; once I got the battery properly charged it all fixed itself, and panic over. Cheers, so reassuring to get some input from those in the know.