Hi I’m Terry, new in here, looking for some help with a problem with my Volvo C30.
the battery is draining overnight, two nights in a row after charging, & there is a clicking sound coming from the area of the fusebox in the the passenger footwell. The battery drops so low that the car does absolutely nothing, dead as a dodo.
Any help would’ve appreciated.

 

there's some info on the board and web on how to find a parasitic current draw. To start, you'll need a multi-meter. Disconnect the battery and then measure the current between the terminal and cable. I'd expect something in the 25mA range give or take. To drain a battery overnight, I'm betting you'd see 100mA or more. With that done, start pulling fuses and relays, if you see the mAs drop to a normal level, you have the circuit that's causing the problem so next step is to determine what's on that circuit.

Quite often its something simple like a glovebox light or vanity light that's not turning off - or a stuck relay that's staying energized.

 

Thank you very much for your advice, much appreciated, I will do that tomorrow.