Originally Posted by
Flagrum_3
Do you have access to an AC source? If so, get a trickle charger.
If not, either disconnect the battery which will leave your alarm system off and your car vulnerable, or leave it connected and relatively safe.
Chances are the temps won't go too low in the next month, and you should be okay. The battery will be drained pretty low but nothing a boost won't fix.
Take the car for a good run with little or no accessories on to charge the battery up good just before you take off on holiday also.
_3