Why you shouldn't charge your phone to full every night and other useful tips to help get the most out of your cables and chargers.
As long as you’re using a USB-C charging plug and cable from a reputable manufacturer, you can safely use your USB-C laptop charger to recharge your phone. The reverse won’t always be possible though as not all USB-C charging plugs and cables designed specifically for phones support the higher wattages demanded by laptops.
The lithium-ion batteries in smartphones don’t like very hot or cold temperatures. Researchers at the University of Michigan recommend that you avoid charging your phone in temperatures above 35 degrees Celsius or below zero degrees Celsius.
Batteries don’t charge at an even rate, so it takes longer for your phone to reach 100% charge than say 50%. This is normal behaviour and nothing to worry about.
To maximise the usable life of your phone’s battery, especially if you’re working from home more and going out less, consider charging your phone only to 80%. iPhones running iOS 13 have an optional feature called Optimized Battery Charging. This will delay charging your phone past 80% if its algorithms reckon you won’t be unplugging and using your phone soon, based on your previous usage.