🟩 1. Turn on Optimized Charging
This slows charging past 80% until you normally unplug.
It’s the only built‑in feature Apple uses to reduce chemical aging.
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🟨 2. Avoid keeping your iPhone at 100% for long periods
Lithium‑ion batteries age fastest when held at full charge + heat.
If you charge overnight, OBC helps — but it’s still better to unplug in the morning.
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🟦 3. Keep your iPhone cool
Heat is the #1 battery killer.
Avoid:
• Car dashboards
• Gaming while charging
• Wireless charging under blankets or cases that trap heat
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🟧 4. Use 20W or lower chargers for daily charging
Fast charging is safe, but slower charging produces less heat and extends lifespan.
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🟪 5. Avoid deep discharges below 20%
Dropping to 0–10% frequently stresses the battery.
Try to stay between 20%–80% most days.
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🟥 6. Turn off Background App Refresh for heavy apps
Apps like Facebook, TikTok, and Snapchat constantly wake the CPU.
Less background activity = less heat = longer battery life.
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🟫 7. Disable Always‑On Display (if you don’t need it)
On Pro models, AOD uses a small but constant amount of power.
Turning it off reduces heat and daily cycles.
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⚪ 8. Use Low Power Mode more often
It’s not just for emergencies — it reduces background tasks and heat.
Safe to use all day.
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🟡 9. Avoid cheap cables and chargers
Poor voltage regulation = heat spikes = battery wear.
Stick to MFi‑certified or reputable brands.
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🟤 10. Restart your iPhone once a week
Clears runaway background processes that cause overheating.