SESKStuff Everyone Should Know
SESK: Stuff Everyone Should Know · sesk.info/tech-no-need-to-drain-battery

Should you let your phone's lithium-ion battery run all the way down before charging it?

No. Charge whenever you want; there's no need to drain it first.

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  1. Yes, or it forgets its full size
  2. Yes, at least once a week
  3. No, charge it whenever you like ✔

Why: Lithium-ion batteries do not need a full discharge before charging. Apple says you can charge its batteries whenever you want, with no need to run them down to zero.

Huh, didn't know that: Batteries count 'charge cycles': using 75% one day and 25% the next adds up to one cycle.

The dad joke
Why didn't the orange win the race? It ran out of juice.
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References

Answer: No, charge it whenever you like. Lithium-ion batteries do not need a full discharge before charging. Apple says you can charge its batteries whenever you want, with no need to run them down to zero.

  1. Why Lithium-ion? (Apple Batteries) www.apple.com/batteries/why-lithium-ion
    Charge your Apple lithium-ion battery whenever you want. There's no need to let it discharge 100% before recharging.
    Checked 2026-10-11.

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