What sensor a dashcam use are most often listed in the sales material, or at least on the brands home page.
A few brands make dashcam dedicated power packs, and these can also often be used with other brand of Dashcams, street guardian for instance say their cameras can work with,,,,,, i cant remember which power pack.
Using parking mode, not least if you want to do that whenever you are parked, that actually put a high strain on the battery, so you cant just do 1 hour of driving every day and then have the camera do parking guard the remaining hours of the day.
The 2 things need to balance out, and only way to do that is to drive enough for your car to fully charge the battery or put a charger on the car at home.
Some people are using USB power banks, and then have 2 so they can use one while the other one charge at home, but then you have to manually swap them around all the time, and there are no automated hand over between regular driving mode and parking mode,,,,,, so personally not something i would use myself.
Parking guard are a okay feature, but i think you should do all you can to use it as little as possible, i have it going on one test system ( SG9663DR ) but i only have to going for 1 hour on the timer, this will cover all my shopping.
And should i park in a suspect place i can just go into settings and remove or change the timer value for longer coverage.
At home i have or rather use to have CCTV on my parked car, but t he camera broke and i keep forgetting to replace it.
My little car have a little battery, so on the days where i only do a short run to the shops, the 1 hour parking guard are on when i get home are Okay to deal with in regard to keeping my battery topped up.
It is only 1 - 2 times every week i go for a longer drive, with a total of 1 - 1.5 hour driving time, and it is also not every day i drive, some days i just stay at home and go nowhere. ( retired and on a pension )
There alsi is one more problem in regard to parking mode, and thats is at night there must be some level of light from street lights or something, and also very much a problem for me now this time of the year, dew or droplets on the windscreen that will block the view from the camera.
And ice on the glass, well the cameras can often melt that if it is not super cold, but if it is a thick layer of snow that are a problem,,,,,, and doing so the camera will reveal its pretense to anyone that notice such things.