@SaraJAwesome@Tesla Model 3 SR+, Sentry off, I lost a total of 12% after 4 weeks unplugged. I would guess it would last way more than 75 days. And Setry mode is automatically turned off when battery reached 20%.
@Yo1dotcom@AppleSupport I was just able to get it into internet recovery mode by 1. Let the be empty by just leaving it on 2. removed the SD card 3. Plug in 4. Reset SMC (Shift-Control-Option-Power) 5. Internet recovery (Option-Command-R) 6. Disk Utility First Aid 7. Restart and now installation resumed