2004 Prius iTech - Battery when car unused for 4 weeks?

welcome!
you can put a smart charger on the charge point under the hood. there's also an sks shut off switch under the steering wheel, if you have sks. another concern is the hybrid battery. as they age, they dislike not being used. 4 weeks probably isn't a big deal though.

 

Use the key in the fob push the clip on the remote. Then pop the hood and open fuse box under the hood.
There a red cover charge +it there- to bare Metal

Posted via the PriusChat mobile app.

 

You can either do it at the terminal in the fuse Box or plug one into the cigarette lighter

Or unbolt the red wire from the fuse box it like unbolting the ground
But easier to get to
I Use a piece of plastic to hold it up off the bold Not sure how long that wire is

Posted via the PriusChat mobile app.

 

4 weeks is pretty risky. I have a 2007 prius that I bought about 3-4 months ago. I don't use it, as I bought it merely because it was a fully loaded model and the price was impossible to pass up. I installed a brand new battery in it, and leave the smart key system turned on. I've had to recharge the battery twice due to it dying.

If you have a full size battery and jumper cables, or a jump pack, just put it in the car and use it when you get back if needed. or, you can get crazy and connect the full size battery to the prius battery before you leave, so you have the equivalent of 3 prius batteries connected to the car. That would last months.

 

Why not just turn off the SKS button under the steering wheel to minimize unnecessary 12V drain?
Why not just disconnect the 12v GROUND?
Why not just put smart battery charger that is AGM compatible?

 

he's at the airport, so charging is out of the question.
if you disconnect the 12v neg, how do you open the hatch?

 

in that case, i think turning the sks off and a jump pack would be your best bet. or they may have free jump service at the airport? but you would have to wait for them, and make sure they don't cross polarize the connections.

the big question is the health of the 12v to begin with. i leave mine every winter for 5-6 weeks without problem, but i know it's a healthy battery.