Just to add to this, the latest public beta is an absolute game changer for battery life. Fingers crossed it doesn't nose dive in the final release but I don't have my hopes up tbh.

I'm not sure if the same can be said for the 7a, but a close friend of mine was having awful battery experiences on his 7. I saw a lot of people saying their battery was vastly improved on the Android 14 Beta so I told him to try it and he's said it's a night and day difference. May be worth a shot.