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Did you know: Smaller batteries don't just store less power, but they also age faster.
Here's why:

To achieve the same absolute output power, a smaller battery has to work harder relative to its size (technical term: “C-rate”), and also be re-charged more frequently by the user, therefore cycling it into death faster.

Smaller batteries also can be charged slower relative to size.

A smaller battery needs to work harder to achieve the same user demands, which magnifies with battery age.

Battery aging makes a battery:

  • Have less capacity.
  • Have less output power.
  • Charge slower.

All of this while the user's demands persist.

An aging battery needs to work increasingly harder relative to its remaining capacity (that decreases with time) to fullfill the same user demands, which ages it even faster.

The unexpected shutdowns happen when the battery is unable to maintain a voltage of above 3.0V, which is more likely to happen with aged batteries where chemical reactions are slower, thus the output power is weaker.

That's why many iPhones, especially the iPhone 6s, was a battery disaster.

Imagine a tiny, non-replaceable (trapped) 1715 mAh battery having to provide the juice for power-intensive tasks such as 2160p and 1080p@120fps video recording on the iPhone 6s or a 1624 mAh iPhone SE. Recipe for battery disaster.

Also, remember how Apple throttled the processing speeds on the iPhone 4s with iOS 9? That's the reason for it.

Apple's battery performance was historically dystopic.

Did you know: Smaller batteries don't just store less power, but they also **age faster.** Here's why: To achieve the same absolute output power, a smaller battery has to work harder relative to its size (technical term: *“C-rate”*), and also be re-charged more frequently by the user, therefore cycling it into death faster. Smaller batteries also can be charged slower relative to size. A smaller battery needs to work harder to achieve **the same** user demands, which **magnifies** with battery age. Battery aging makes a battery: * Have less capacity. * Have less output power. * Charge slower. All of this while the user's demands persist. An aging battery needs to work **increasingly harder** relative to its remaining capacity (that decreases with time) to fullfill the same user demands, which ages it even faster. The unexpected shutdowns happen when the battery is unable to maintain a voltage of above 3.0V, which is more likely to happen with aged batteries where chemical reactions are slower, thus the output power is weaker. ---- That's why many iPhones, **especially the iPhone 6s,** was a battery **disaster.** Imagine a tiny, non-replaceable (trapped) 1715 mAh battery having to provide the juice for power-intensive tasks such as 2160p and 1080p@120fps video recording on the iPhone 6s or a 1624 mAh iPhone SE. **Recipe for battery disaster.** Also, remember how Apple throttled the processing speeds on the iPhone 4s with iOS 9? That's the reason for it. Apple's battery performance was historically dystopic.

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