Battery charge

I would say about the same. Usually don't have a problem under a month on a charge.

The problem becomes more of how often does a single battery sit without being at full charge. When batteries sit, they sulfate which ultimately drops their charge. After multiple long periods of states of discharge, you eventually lose sufficient capacity in the battery for it to even hold enough voltage to start the bike.

Throughout my years of riding I've learned if I anticipate it sitting more than a month, take the battery out of the bike (to prevent discharge) and throw it on the tender so it fully charges. And then leave it out of the bike in room temperature.

Interesting! let us know where is the tender port on MT 10 (2022)

What i heard about Li Batteries is not that positive. Unless weight reduction on track is your main moto... They are expensive, need different charger, very susceptible to temperature and cant recover if goes below threshold voltage. Atleast for me not worth.
VRLA normal batteries works fine and serve purpose. yours going down in 3-4 days may be because it was discharged previously and not holding proper charge anymore.
 

That sucks if my battery isn't holding a charge.

Did you check that the key is not on the park position ?
In this position some circuits are still alive and using battery.

I've a Li-ion battery (skyrich paid same price as original yuasa) for 2 and half year now (and it was previously on my MT09 for 1 year) and I've no problem.
It starts instantly after 6 weeks.

You can compare with other bikes, the YTZ10S is also fitted on MT07 and MT09.
The power needed to start is quite the same because each cylinder has the same volume. (between 235 and 280 cc)

The OEM battery is a Yuasa YTZ10S 12VDC 8.6 Ah/(10hr.). It is the same battery as was in my MT-09.  The longest I have let a bike sit (without being on a trickle charger) is about 25 days.  A good battery, less than a year old, should maintain a voltage of 12.8 volts for a day after riding and drop 0.05 volts each day after that. I recommend using a Battery Tender if your bike will set longer than 3 weeks. Doing so will increase the life of your battery by about 5-10%. It will also avoid the strain on you, your battery, and your electrics by having to jump-start your bike. 

That might very well do it lol