Charging the battery when the automobile is not in use

[Samuraisaint]

I am unable to drive until an issue with my medical licence renewal is rectified.
When I couldn't drive, it was usually because of a dead battery.
I began it every day and did my best to maintain it.

When I finally received my driver's license, all I had to do was buy a new battery.

I am unsure if I am able to use my ctek charger where I am. not at my residence
In my opinion, the garage is not a viable choice.
Lucky for us, we probably won't need the car to go about.

Even while I can disconnect the negative cable, I don't think that's the best solution.

I am only considering my options.

1, install a new battery and forget about it until you need it. I know it needs an AGM because of the start/stop functionality, so I'll start it every ten minutes.
Thirdly, is there a backup battery in the alarm system that will activate in the event that the primary batteries die? Is this something I need to know if I want to physically lock the car without the alarm?

(I remember my last vehicle making a beeping or whining sound if the battery was low)

My knowledge of solar power chargers is limited to what I've read about online.

DVLA has been really kind, however I'm devastated since I filed the application online with incorrect information because of an error.

Hopefully, the revised form they are sending out will cure the mistake; nonetheless, the timing of its processing is crucial. Obviously, becoming a doctor requires more time.

Shockingly, this has transpired once more.
I had to wait almost a year for all of my medical exams to be completed because of a backlog after losing my licence during Covid-19.

[Adv3nture]

Just turning it on for ten minutes won't do anything to restore the charge.
If the charger is not available at the current location, I would recommend unplugging the battery before leaving it for a long time.

[Samuraisaint]

Much obliged,

Does it have a backup battery? I was wondering whether disconnecting the battery will affect the alarm. For the time being, I can use the key to lock the car manually.

I'm scared about unplugging the battery because I just found it online.

A backup battery is included into the alarm siren for BMW E82 1 Series vehicles that come with the factory-equipped Anti-Theft Alarm System. one, two
If the primary battery of the car is disconnected or cut by a thief, this internal battery will activate the siren.

I'm also considering purchasing one of these for use with the on-board diagnostics port in my vehicle.

[Samuraisaint]

https://www.ebay.co.uk/itm/306651278761?_ul=GB&mkevt=1&mkcid=1&mkrid=710-53481-19255-0&campid=5338365712&toolid=20006&customid=CjwKCAjwt7XQBhBkEiwAtStpp_dl0yx_eKWQS5q3uH3AX_e0rW5QqcJVW8-BeE9zsYItszj4bgfNhBoCbzUQAvD_BwE|null|null&gclid=CjwKCAjwt7XQBhBkEiwAtStpp_dl0yx_eKWQS5q3uH3AX_e0rW5QqcJVW8-BeE9zsYItszj4bgfNhBoCbzUQAvD_BwE&loc_physical_ms=1007243&adtype=pla

[Adv3nture]

It will work perfectly if you detach the battery while the alarm is not turned on.

[MaxiBroadway]

Do you know how to physically access the battery? I can't lock it with the fob remote, and the battery isn't even attached.