How to power down a Cerbie?

[AnotherGuy]

On Saturday I need to move my Cerbera into a rented storage unit - as my garage is having extensive work carried out, it'll be in storage for around 3 months.

The unit doesn't have power. Nor do I have access to sunlight for a solar power jobbie. So I need battery disconnection options :

a. Turn the silver key and hope it turns back on again later
or
b. Remove the battery

But what about the (standard) alarm, I assume it has battery backup - how do I ensure it doesn't start making a noise at 2am the morning after I leave it, and will the fob and alarm still be in synch after 3 months without power? Anything obvious I've missed or will encounter?

Thanks

[TwinKam]

Don't. Touch. The. Silver. Key. !
Leave car unlocked (and therefore the alarm disarmed).
Disconnect one terminal of the battery, the positive is easiest to get to.
Leave bonnet un-latched.
When you reconnect, the alarm will sound immediately, so have your plipper to hand.

[mike_e]

More importantly the car will lock itself as soon as the battery is connected, don't leave the keys inside or leave a door open.

[Byker28i]

mike_e said:

More importantly the car will lock itself as soon as the battery is connected, don't leave the keys inside or leave a door open.

bonnet open, door open, boot open (so you can get to fuses etc)

[GT6k]

My experience is that the doors and boot must be open when you reconnect the battery otherwise the alarm and door computers become out of phase. This means that you can then only open the doors when the alarm is armed so it goes off every time you get in the car.

[CerbWill]

Alternatively with the doors shut my car auto arms the alarm on reconnecting the battery with associated winding up of the windows and flashes of the hazards. A normal press of the unlock button and all is well. 1996 Cerb for reference, with a new M99 alarm and immobilizer fitted a couple of years ago.

[Incognegro]

Fit a battery isolator switch under the bonnet?

[Mr Cerbera]

.... and
How did the reboot go ???

[TheRainMaker]

I would just disconnect the battery, leave the boot unlatched and the bonnet open but down.

When you connect the battery back up the car will start to arm, just press the fob and disarm it.

[AnotherGuy]

Mr Cerbera said:

.... and
How did the reboot go ???

I don't know yet...

I moved it into the storage unit in Oct and followed the general advice of just disconnecting the + battery terminal. It's been there since. The house refurb is expected to continue for another 8 weeks before I can move it back