How to Take Care of Your Smartphone Battery: 10 Proven Tips
The lithium-ion battery is the weakest component of every smartphone. After 2–3 years of intensive use, its capacity drops by 20–30%. But by following simple rules, you can significantly extend its lifespan. Here are 10 proven tips.
10 Rules for a Healthy Battery
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Keep the charge level between 20% and 80%
This is the golden rule. Regularly charging to 100% and draining to 0% accelerates cell degradation. Modern phones have a "charging optimization" feature — turn it on!
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Don't charge your phone overnight
Although modern smartphones have protections, keeping the battery at 100% for 6–8 hours isn't optimal. If you must — use smart charging scheduling.
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Avoid fast charging daily
Fast charging (65W, 120W) generates more heat, which degrades the battery faster. Use it only when you're in a real hurry.
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Avoid extreme temperatures
Batteries don't like freezing cold (below 0°C/32°F) or heat (above 35°C/95°F). Don't leave your phone on the dashboard in summer!
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Remove the case when charging
Cases hinder heat dissipation. This is particularly important during wireless charging.
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Use original or certified chargers
Cheap chargers from unreliable sources can deliver unstable voltage, damaging the battery (and in extreme cases — can be dangerous).
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Turn off features you don't use
Bluetooth, NFC, location, Wi-Fi — if you're not using them, turn them off. Each one consumes battery in the background.
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Keep your software updated
Manufacturers regularly optimize power management. Updates can extend battery life by 10–15%.
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Limit widgets and background refresh
Every widget and background-refreshing app is an additional battery drain. Keep only those you actually need.
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Check battery health regularly
iOS: Settings → Battery → Battery Health. Android: Settings → Battery → Battery Health. If capacity drops below 80% — consider replacing the cell.
"A battery that retains 80% capacity after 3 years is a well-treated battery. Following these rules can extend battery life up to twice compared to a user who ignores them."
Charging Comparison — Impact on Battery
| Charging Method | Time 0→100% | Impact on Lifespan |
|---|---|---|
| 5W (old charger) | ~3h 30min | Lowest — ideal |
| 20W (standard) | ~1h 30min | Low — recommended |
| 65W (fast) | ~45min | Medium — ok occasionally |
| 120W (ultra fast) | ~20min | High — avoid daily |
| Wireless 15W | ~2h | Low (mind the temperature) |
Take care of your battery — your wallet will thank you!