Frequently, our 2002 Volvo S80 will not start as the battery is dead. We have had the battery checked and was told it was good. However, something seems to be draining the battery. Does anyone have ideas on the possible cause of the drain? Also, the first time the battery died, it was jumped from the battery rather than the connection points in the engine compartment (Under the hood). Could we have mess something up in the electrical system in connecting directly to the battery in jump starting the vehicle?

Welcome :) . Please post under related forum to get a better response. New member area forum is for introductory purpose only.

:00000732: :)

New here too, but thought I would ring in with a :00000732: ...great place to hang and find answers.

Check the switches. Especially those hidden from the naked eyes, like the glove-box switches etc. If they are bad, the lights go on all night.

I have good news for you. E was in the same situatuin and tried very hard to fin sameone with skiils to fixed up. Anyway my problem was a module which is under the driver chair. This one can dry your batery even if you dont use the car for one hour
good luck

No, it won't mess it up by jumping it from the battery, in fact it's actually better to do it that way. Do you KNOW that the battery is dead? OR does it just have such a high resistance in the cables that it can't carry the current to the starter that is neccessary. Check all your connections and make sure there is no corrossion, knicks, or cuts in the cables, ect... The best way is to test potentional voltage + post and - post. Then test the positive under the hood to a relative ground, and if the voltage is significantly lower, it's most likely your battery cable. good luck!