Device: M1 pro Macbook pro, 16'', 16GB memory, 512GB SSD
A month back, the battery icon suddenly showed an 'X' mark with the 'Service Recommended' warning.
- The power source was shown as power adapter. So the laptop would switch off immediately whenever unplugged.
- The maximum battery capacity was shown as 85%
- Glitchily, the cycle count was shown as 0
- Until now, I rarely ever heard the fan, but now it was almost always on
When SMC reset/safe mode/apple diagnostic didn't help, I took it to the official apple authorised service centre:
- Reinstalling the OS didn't fix it
- They checked the hardware and didn't find any physical damage/swelling etc
They told me it's a "battery issue" since their diagnostic said so and since its in the "service recommended" state, the only option is to replace the battery. When asked then what exactly the issue in the battery is, they said it's "completely dead" (when in fact it shows 85%).
After Sonoma Update
After I updated to macOS Sonoma from Ventura, temporarily
- The power source was back to Battery, so the laptop wouldn't shut down immediately after unplugging
- Cycle count was properly shown as 286
- The device actually worked fine on battery. It was holding power like normal, and I'm pretty sure it could give me 10+ hours of battery life from the way it was draining.
But after a restart, the condition is back to how it was previously. (X symbol)
Based on the observations after the update, the issue is clearly software related. My guess is that there should be some glitch in how the OS is interacting with battery. (0 cycle count)
I don't mind the 85% capacity. I'm OK with using it mostly while plugged in. But I'm NOT OK with it switching off every time there is a power outage or I unplug it temporarily. I at least want to be able to unplug it for few minutes at a time, to move around, without it dying on me.
My only option right now is to downgrade to Ventura, then upgrade to Sonoma again, and never restart the laptop ever again, unless there is a workaround for the blocked battery.
Macbook battery has degraded to 85%. I'm okay with the lesser battery life, but currently, since power source is forced to be power adapter, it's unsuable when unplugged. Is there a workaround to this, so that I can continue to use it on battery power?