The battery will drain down because the computer is always pulling a little current to save it's memory. One thing you will have to do though is when you re-hook the battery, make sure to turn the key on BUT DON'T START IT. Leave it on for a minute, then restart it. Toyota's have a problem restarting after a new battery if you don't follow this step. Also, an easier fix for you might be getting a slow charger to leave hooked up to battery for the time it's being stored. Many battery chargers will shut off after the battery is fully charged, then come back on when it needs charging. Good Luck!!
CR2032
It's a group 34 battery.
Yes, you can run a 1.5 cu ft mini fridge on a Toyota Sienna battery, but it depends on a few factors. The fridge's power consumption should be within the limits of the vehicle's battery capacity, typically around 12 volts. Additionally, running the fridge for extended periods can drain the battery, potentially leaving you unable to start the vehicle. It's advisable to monitor the battery level or use a power inverter for better efficiency.
From $65 to $265 depending on the quality battery you buy.
There could be several reasons why a Toyota Sienna will not start. the most common problem would be a dead battery.
530 cca and 575 cca
If they sell batteries, then yes.
24F or 35 Just ask for the number from any places that sale battery,
check the battery
A failing alternator.
The tank that is located under the battery on a 2004 Toyota Sienna is a windshield washer fluid tank. Toyota put this tank in this position on the 2004 to 2010 models of the Sienna.
Check you battery, when it starts to die esp on hot days.