According to Apple, the iPhones with the best battery life are the iPhone 11 Pro Max and iPhone 12 Pro Max. Both phones are designed to last for 12 hours of video streaming, 20 hours of video playback, and 80 hours of audio playback. In the real world, we’d expect the iPhone 11 Pro Max to last longer.

Premium-priced Android phones are about as good as the iPhone, but cheaper Androids are more prone to problems. Of course iPhones can have hardware issues, too, but they’re overall higher quality. If you’re buying an iPhone, you just need to pick a model.

iPhone 12 Pro Max

Apple’s closed ecosystem makes for a tighter integration, which is why iPhones don’t need super powerful specs to match the high-end Android phones. It’s all in the optimization between hardware and software. Generally, though, iOS devices are faster and smoother than most Android phones at comparable price ranges.

Yes, it’s safe to leave your smartphone plugged into the charger overnight. You don’t have to think too hard about preserving your smartphone’s battery — especially overnight. For instance, if you drain a phone’s battery halfway then recharge that half-empty capacity, that takes up half a cycle.

No. iPhone cannot be overcharged, so there is absolutely nothing to be concerned about leaving it plugged in to charge for extended periods of time.

After 500 cycles or so, your iPhone 12 can lose battery capacity, requiring that you charge it more often. While this may not be a huge issue some days, it can matter if you use your phone a lot. When you leave your phone charging overnight, it will most likely reach 100% far before you wake up.

As it stops automatically at 100% you can’t overcharge it doing this. You thus start the day with a fully charged phone. And, if you configure the phone for automatic backup using iTunes or iCloud, the phone will back up every night when it has a WiFi connection and is asleep.

Using a USB-C cable and USB-C charger will allow the iPhone to charge at faster speeds. Using USB-C, you can charge the iPhone to 50% in about half an hour. The highest wattage the iPhone 12 will use is around 22 watts, so a 20 watt or 30 watt charger will result in the about same charging speed.

“Do not leave your phone connected to the charger for long periods of time or overnight.” Huawei says, “Keeping your battery level as close to the middle (30% to 70%) as possible can effectively prolong the battery life.” The official word is to keep your phone charged – but not fully charged.

What’s the best way to charge your smartphone? Avoid full cycle (zero-100 percent) and overnight charging. Instead, top-up your phone more regularly with partial charges. Ending a charge at 80 percent is better for the battery than topping all the way up to 100 percent.

Store it half-charged when you store it long term.

1. Do not fully charge or fully discharge your device’s battery — charge it to around 50%.
2. Power down the device to avoid additional battery use.
3. Place your device in a cool, moisture-free environment that’s less than 90° F (32° C).

Yes its always better to charge any device when it is switched off because it helps electron to flow in a single direction in the battery circuit otherwise the device continuously consumes the battery it will take more time to charge the device and the more time it take to charge the more the battery life is effected …