Boxster trouble

[Steve Tinker]

Do you have a multimeter & a battery charger? If so, here is a quick guide.

1) Check the voltage at the battery terminals - a fully charged battery should = 12.6v, anything less than 12 volts won't start the car and you need to put it on the battery charger for several hours.

2) With the engine is running @ +/- 1,500rpm, the voltage at the battery terminals should be 13.4 -14.3 volts approx. Anything less than 13,2 volts and the alternator / voltage regulator is suspect.

3) If all above checks out OK, then you have a parasitic draw which is flattening the battery - this could be as simple as an internal light left on in the front / rear boots or in the cabin, or alternatively an electrical fault elsewhere in the system.....

[evo-r]

Originally Posted by Steve Tinker

....
3) If all above checks out OK, then you have a parasitic draw which is flattening the battery - this could be as simple as an internal light left on in the front / rear boots or in the cabin, or alternatively an electrical fault elsewhere in the system.....

In addition, the cigarette lighter socket in the car is alway "live" even when you remove the key, so make sure you turn off or unplug whatever you have plugged into the socket.