@Spleenomatik, that’s because the URI points to an (unfortunately, mandatorily) private ZenDesk ticket.
I must have forgotten to share it. Thanks.
They provided me with a plausible explanation, but not one which I believe, due to the immediately noticeable degradation in performance immediately after hitting 10% charge (it should be a gradual performance degradation):
Our Product Team confirmed that this is a known behavior in many smartphones, including Android and iOS devices.
When battery levels drop to around 10% (sometimes 20%), smartphones often throttle performance to conserve power and prevent shutdowns, even if Battery Saver is off. This is due to:
- Built-in power conservation: Even when Battery Saver is disabled, most devices have automatic power-saving measures that reduce performance to prevent rapid battery drain. This isn’t typically controlled by user settings.
- CPU Throttling: When the battery level is very low, the CPU is usually throttled to reduce power usage, which impacts performance by limiting power-intensive operations.
- Battery wear and power delivery limits: Lithium-ion batteries struggle to deliver high power at low charge. Under 10%, the battery might not be able to sustain high-performance demands, and this power delivery constraint leads to an automatic performance reduction. This varies by device, which may explain differences the customer notices.
This behavior is normal and aims to extend device usability at low battery levels.
Additionally, Bedtime mode on will influence device’s performance as well. Bedtime mode is more resource intensive, so that could also lead to more performance degradation, in low battery levels.