You don’t say which version you have, but yes with the 11 Gen chips there is apparently a flaw in the Intel chip that once the BIOS/RTC battery discharges it hangs and so a ‘mainboard reset’ is required.
Given the above I doubt it’s the same issue but maybe a) a faulty battery b) the battery is poorly seated and isn’t being charged efficiently or c) the battery holder is not soldered properly.
You may want to remove the battery, clean it etc. and check.
Official support will no doubt help and may send you a battery if they deem it at fault, though it may be quicker and less stressful to buy a new battery and try that
This happens if the ML1220 isn’t charged regularly for 1 hour a day, or some 7 to 8 hours a weeks etc.
A fully charged new battery should keep the charge for at least two weeks not two days.