Airplane Mode Speeds up Phone Charging by 4 to 11 Minutes, CNET Finds

Putting a phone in airplane mode shaved just 4 to 11 minutes off charging times in CNET’s tests, a far cry from the 25% speedup some users claim. The small gain comes from disabling power-hungry radios like cellular, Wi-Fi, Bluetooth, and GPS, but fully powering the device down is a more effective shortcut.

Your phone is tethered to a wall outlet, but it is still busily chatting with cellular networks, Wi-Fi, Bluetooth, and GPS in the background. Flip on airplane mode and those radios go quiet, which is why some users swear it shaves a quarter off charging time. CNET put that claim through a stopwatch and found the payoff is real but small: 4 to 11 minutes. If you actually need the fastest refill, powering the phone down entirely beats any quick toggle.

Every summer has the same little panic: you’re out running errands, using maps, snapping photos, juggling group texts, and your battery seems to drop faster than your iced coffee melts. That’s when the old tip comes back around. Plug in your phone and flip on airplane mode, and it will charge faster. It sounds practical, but it’s worth asking what you really gain.

Airplane mode isn’t just about being quiet on a flight. It shuts down a lot of the stuff your phone constantly does in the background: cellular radios hunting for signal, Wi‑Fi scanning, Bluetooth connections, location checks, notifications, and app sync. With less background drain, more of the power coming from the charger can go toward filling the battery instead of feeding those systems.

This is the case whether you’re on an iPhone or an Android device, because the basic math is the same: charging speed is partly about how much power arrives, and partly about how much the phone spends while it’s plugged in. Airplane mode lowers the spending side of that equation, even if your charger and cable stay exactly the same.

Here’s the part that tends to get lost in social posts: the boost is real, but small. Tests published by CNET found airplane mode shaved off only a handful of minutes. In those trials, the time savings ranged from 4 minutes to 11 minutes, depending on the run.

That gap is a lot less dramatic than the “up to 25% faster” stories you’ll sometimes hear. And the tradeoff is obvious: while airplane mode is on, your phone is basically on pause, no calls, no texts, no streaming, and no live navigation. If you’re charging in the background while you work, those few minutes may not be worth the inconvenience.

If you truly need the fastest possible top-up, powering the phone fully off often does more than airplane mode, because it eliminates almost all power draw. It’s not convenient, but it’s the cleanest way to stop the battery from “leaking” energy while it’s trying to refill.

For day-to-day battery longevity, the better habit is less dramatic: many battery experts still point to staying between 20% and 80% when you can, limiting overnight charging, and avoiding heavy use while plugged in. Heat is the quiet enemy here, so keeping your phone cooler during charging often matters more than any toggle.