2 days without charging ? Then i would say after charge 100% just never touch do not do anything, lets see how long it can last maybe more than 2 days.

If u use heavy with no break even in 2 hour can finish up battery. Just typing text here in lowyat forum
1% reduced in 5 min
100% can reduced in 500min..  so within 8 hour its possible to use 100% of battery just texting here with display ON for 8 hour.

5 to 7% drain is pretty minimum if your data and wifi is on.

I always put on flight mode, 8 hours usually drains about 3-4%.

My S21FE's screen developed a green line
Never drop, never got wet, never use without a case

Went to Samsung Store for a quote, RM600+ and need to wait for 3 months
Ended up visiting 3rd party to repair, RM620, got it back on the next day
Funny thing is, this phone was repaired under Samsung Care+ a year ago
SS claims my phone was repaired by 3rd party cause the back cover was detached due to weak adhesive

I'm not going to buy any Samsung Phone after this
Been using their phone since S2, Note 1 era...not happy with their after sales quality

Anyone have issue after update latest software?
Phone middle suddenly have 1 pink line from top to bottom.

Contact samsung ask to send in service center to check.
Last time kena 1 time, after update screen terus black screen. Cost few hundreds to replace screen. Now second time, hope samsung can free replace screen. Else need to rethink. So far never has bad experience like this screen problem 2 times

10/10 S23 ultra cheap cheap and the first series 2 use the better amoled screen