Measuring Potential
At its core, the problem with a lower max capacity is all about efficiency.
As your battery ages and degrades, the amount of charge it can hold begins to drop.
After that capacity drops a bit, it also can start to affect how well your unit performs.
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Because your battery isnt capable of holding as much charge, your iPhone begins throttling things to save power.
In practice, an iPhone with low battery health will throttle performance to avoid powering out.
“The phone battery health often plays a huge role in performance too.
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In practice, an iPhone with low battery health will throttle performance for avoid powering out.
This means that phones will increasingly get slower as the battery health reduces,” Vrabie explained.
Breaking Down
While rechargeable batteries have come a long way, they still have a limited lifespan.
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Every charging cycle that your phone goes through degrades the batterys overall capability.
A full charging cycle is completed each time the battery uses the power equal to its actual capacity.
Things get a little complex when you start to factor in theDepth of Discharge,or DoD.
Essentially, DoD is the percentage of power that has been discharged, compared to the batterys overall capacity.
The iPhone does something similar, but with a built-in feature calledOptimized Battery Charging.
While this is useful, Vrabie recommends unplugging your phone once it hits that 80% mark.
