Symtoms of a Flat Battery

[jet black]

I drive my car once every week. After leaving my car (2006) for 5 days, I tried to take it out for a spin. I couldn't unlock the car using the remote so I used the key hole to unlock, when i opened the door, the window didn't nudge. The moment I put the car in standby mode the rear spoiler raised by itself, and came all the faults (PSM, Rear Spoiler, PASM etc) the door illumination light also didn't go off. I decided not to start the car fearing I could cause more problems. Could it be a flat battery? Or could it be the electronics just died on me? Now I couldn't close the door as the window prevented the door from closing.

I hope this is just a flat battery, did anyone experience the same symtoms for a flat battery?

[Loren]

I would get the battery tested for load and specific gravity of each cell.

[jet black]

It's the battery alright. What brands would be a better alternative to the original? Heard Optima is good.

[Loren]

It's the battery alright. What brands would be a better alternative to the original? Heard Optima is good.

Any major brand should be fine size 48 works best.

If you buy an Optima - you will have to make a custom mount. Someone did a DIY on that I think it is in the 996 DIY section.