You can also just disable the battery performance optimization setting, but you could occasionally experience sudden loss of power with an old battery.
Enabling this setting can result in your iPhone hard-crashing during high-draw workloads (extreme CPU usage, very poor cellular connection, etc), as the power delivered by the battery becomes unreliable, causing the hardware to abort/panic when it drops low enough at the wrong time.
It's like intentionally buying a UPS that powers itself off any time you encode video and build a kernel at the same time, only on the device that's maybe holding your transit card and lets you call 911 emergency if you need to.
Maybe don't check that box. Or do, but do so knowing the risk. (Including the cost of replacing the device if the undervolting eventually burns it out, since you chose not to repair it when warned).
> disable the battery performance optimization setting
If you can't find the option to disable the battery performance optimization setting (Settings -> Battery -> Battery Health) its because your iPhone has yet to have an issue with peak current from the battery so is currently running as normal.
The option to disable battery performance only becomes avaliable once such an event has happened.
The speedup is marginal and hardly perceivable. This theory Apple is slowing older phones to sell new models is simply untrue. On the other hand I challenge anyone to show me a perceivable difference between a 60 and 100Hz display. I think it just wastes energy. After all, if Apple didn’t waste that additional power budget from dropping a process node, then the device might last twice as long and battery aging wouldn’t be an incentive to buy a new phone anymore. Guess everyone missed that trick
rgovostes|4 years ago
You can also just disable the battery performance optimization setting, but you could occasionally experience sudden loss of power with an old battery.
floatingatoll|4 years ago
It's like intentionally buying a UPS that powers itself off any time you encode video and build a kernel at the same time, only on the device that's maybe holding your transit card and lets you call 911 emergency if you need to.
Maybe don't check that box. Or do, but do so knowing the risk. (Including the cost of replacing the device if the undervolting eventually burns it out, since you chose not to repair it when warned).
Crosseye_Jack|4 years ago
If you can't find the option to disable the battery performance optimization setting (Settings -> Battery -> Battery Health) its because your iPhone has yet to have an issue with peak current from the battery so is currently running as normal.
The option to disable battery performance only becomes avaliable once such an event has happened.
threshold|4 years ago