Stored 360-prevent dead battery and jump starts

Can you remove the battery and keep it at home on a tender? When spring comes, reinstall the battery and your good to go with a fresh battery. If not removable due to space constrictions etc, you could use a power source like a Jackery to power your charger or tender periodically and keep the battery charged, Just a guess, but if you did this probably once a month would be sufficient. The most harmful, least desirable method would be to start the car cold and idle it to charge a battery. The engine would never get properly warmed up and it would induce internal condensation corrosion etc, Not a good idea to just start it and let it idle in the cold.

 

Take the battery home, my toyota used to sit for 5 months at a time when i worked deep sea and not started.
On coming home the battery still had enough charge to start the engine after a few goes, yet not charged up. You will not do that in a ferrari

 

Take the battery out and charge in house.

 

For 3 years I stored my car at my daughter's condo. I do not like turning the power completely off because I did that the first year of ownership and it did not wake up well in the Spring. It threw so many codes like a f-ing beauty queen. Then I needed to get an emission done and some of the monitors just didn't want to reset.
Yes, all my issues but the car went to sleep properly after a nice long drive and a goodnight kiss.

So I decided then to keep the battery connected and charged, but how in a condo with no AC outlets or extension cords allowed.
I bought some wire, 2 alligator clips and 2 truck batteries (the biggest 12v batteries I could find).

I connected the wires to the battery connections behind the driver, ran it out the door and under the car and to the back. I connected the 2 alligator clips and attached it to a fully fully charged battery. This would upkeep the drain to the main battery. Every time I visited my daughter or at least 1/2 week I swapped in the other fully charged batteries.

I monitored the voltages for a while to ensure my setup worked.

It worked so just my suggestion if you're stuck.
The battery setup was always covered by the car cover, away from 'eyes'.

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Get a small solar panel from Harbor Freight. I just looked on their website and they have one for $36 that is 7amp. They also have a 1.5 amp that will probably work also. Attach alligator clamps to your battery and put in the garage window or put it on the roof.
I use solar panels to maintain my RV batteries and it’s a no brainer.


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Hope he has a window with sunlight.
Outside on the roof isn't going to work in Chicago. First snowfall/ice storm and it'll be rendered worthless.

 

Turn the battery master switch off in the frunk. Remove the battery from the passenger wheel well. Put the battery on a tender. Done.