Battery gone

[ghiblicup]

My trickle charger was flashing oddly when I put the GT4 away yesterday so I checked the car this morning as it was playing on my mind. The battery was dead and fobs would not work. Tried to open the door and the alarm went off so called Porsche Assist. They came in 40 mins and we got it started but the battery was not taking any charge and there is an LED on top of it flashing green/red but everything else seemed ok. They offered to get it to my OPC but I know it'll just be sitting there all weekend so I opted to get it sorted on Monday.

Has this happened to anyone else? Sounds like the battery is fked. Can a trickle charger drain a battery? Never had a hint of trouble and the car only does long runs.

[88racing]

If they're still using Moll batteries this doesn't surprise me. They're really a bit pants and you'd be far better off fitting a Bosch - except that you can't if you're under the Porsche warranty.

[cay]

Yeah, Moll batteries are hopeless. Mine only lasted 8 years.

[ghiblicup]

Car went in today and it seems I have a special light weight battery that was not mentioned in the specs when I bought it. It aparantly depletes and charges really quick? It also cost £3000! They reckon my drive there already started charging it and they are fully charging it tonight to test it.

Does anyone know anything about these battery’s? Does what they are telling me sound right? I’m not up on them.

[TDT]

ghiblicup said:

Car went in today and it seems I have a special light weight battery that was not mentioned in the specs when I bought it. It aparantly depletes and charges really quick? It also cost £3000! They reckon my drive there already started charging it and they are fully charging it tonight to test it.

Does anyone know anything about these battery’s? Does what they are telling me sound right? I’m not up on them.

Guess you are not the first owner? so didn't spec it?

From GT4 Options Sheet UK - 192 Lightweight battery (lithium ion) [40Ah] £ 1,538

Lightweight battery is usually an option GT cars and the same was true of the GT4 at new - it was a expensive one at that and yes also expensive to replace... not really sure how many people realistically specced it - but seem like you are one of the lucky few.
I'd expect it to be directly interchangeable with a normal battery which no ill effect other that addition of some weight - that you probably won't notice. And at least it won't be hypersensitive to treatment and environmental elements.

Edited by TDT on Thursday 16th November 18:45

Edited by TDT on Thursday 16th November 18:46

[ghiblicup]

Got the car back! All good and charged. Just went for an hours thrash around Kent.

Yes I wasn't 1st owner.

The OPC I bought from never mentioned it so I was using a standard trickle charger that doesn't work of course. Hence total drain. Now have ordered the "special" trickle ££££

On the plus side my car is lighter and I actually paid less overs than the car cost when it was new!

[mikefocke]

These lightweight batteries are fine for racing. But for running accessories like Audio, HVAC and starting on a cool day not so much.