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Apple iPhone tips: 7 smart charging habits to make your iPhone battery last longer
Want your iPhone battery to age gracefully? Charging it the wrong way every day can quietly chip away at its health. From overheating to fast charging habits, small tweaks make a big difference. Here are seven smart tips to keep your battery healthier, longer—without changing how you use your phone
1/7
Keep Optimised Battery Charging turned on
Apple’s Optimised Battery Charging learns your daily routine and pauses charging at 80% until you actually need the extra juice. It’s not just a gimmick—it reduces the time your iPhone spends fully charged, which helps limit battery wear. Don’t turn this feature off unless you want to knowingly shorten your battery’s lifespan.
Apple’s Optimised Battery Charging learns your daily routine and pauses charging at 80% until you actually need the extra juice. It’s not just a gimmick—it reduces the time your iPhone spends fully charged, which helps limit battery wear. Don’t turn this feature off unless you want to knowingly shorten your battery’s lifespan.
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Limit charging to 80% manually when you can
Even with Apple’s automation, manually unplugging at 80% is the gold standard for battery longevity. Lithium-ion batteries degrade faster when kept at 100%, especially if held there for long periods. If you don’t need a full charge for your day, stop at 80%. Your battery will thank you next year.
Even with Apple’s automation, manually unplugging at 80% is the gold standard for battery longevity. Lithium-ion batteries degrade faster when kept at 100%, especially if held there for long periods. If you don’t need a full charge for your day, stop at 80%. Your battery will thank you next year.
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Avoid overheating at all costs
Heat is the iPhone battery’s biggest enemy. Charging while gaming, keeping the phone in a hot car, or using wireless chargers under pillows can slowly cook the battery. Keep it cool. Remove thick cases when charging and avoid using the phone heavily during top-ups.
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Don’t leave it charging overnight
Yes, your iPhone is smart enough to stop charging at 100%, but it doesn’t unplug itself. If it’s on the charger for 6–8 hours every night, it cycles between 99–100% repeatedly, which stresses the battery. If you absolutely must charge overnight, at least use a low-power adapter.
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Stick with wired charging over wireless
Wireless charging is convenient but wasteful. A lot of energy is lost to heat, which builds up under your phone and ages the battery. MagSafe may be sleek, but if battery health is your priority, a slow wired charge is always better.
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Reserve fast charging for emergencies
Fast charging is handy when you’re in a rush, but it puts your battery under pressure. If you regularly top up using a 30W or 60W charger, you’re essentially pushing the battery to sprint when a jog would do. Stick to 10W or 20W chargers for everyday use.
7/7
Use only Apple or MFi-certified accessories
Cheap knock-off chargers can damage your phone or wear out your battery faster. Apple’s charging system communicates with the cable and adapter to manage power safely—third-party junk often can’t. Always check for the MFi (Made for iPhone) badge if it’s not official Apple gear.
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