It depends on the capacity [measured in Amp-Hours] of the battery, and the amount [how much Amps] of current the mini-fridge draws [uses].
I have an electrically operateed cooler/warmer [looks like an "ice chest"] that plugs into the cigarette lighter, and without the engine running, it will fully discharge the battery in about two hours!!!
I think that mini-fridges operate on the same principle, and thus, I wouldn't expect a car battery to hold up much longer.
2005 Mini Cooper replace car battery. Alternative to MINI part
No
On my 2004 Mini Cooper I jacked up the car and removed the power steering fan (two 13mm nuts) to gain access to the battery terminal on the starter solenoid (the one with the battery cable). I attached a battery charger to the terminal and powered the door locks long enough to open the driver's door. It's tight fit, but I have large hands and was able to do it.
As long as the battery is kept charged then it should last 3-5 years.
how long do batterys work for a car?
A trickle charger is a car battery charger that is designed to be left on a car for very long periods of time to re-charge that car battery by slowly adding charge to the battery.
It is a CR2032 battery, widely available and used in most car alarm remotes/garage openers/various car stereo remotes.
you should go to a car shop and get your battery checked and ask how long should u charge your battery.. or if you should get a new battery
I was told by the dealer that the key recharges when it's plugged into the car.
about 5 years
a car battery last for about 3-5 years
Truck Battery versus Car BatteryThere is no difference in a truck battery or a car battery unless you are talking about a semi. As long as the battery fits, it the same voltage, and has sufficient CCA (cold cranking amps) it will work in a truck or car.