For many people, the last thing they do before bed is charge their phones by their bedsides overnight. If you are one of them, you might be damaging your phone’s battery. Your phone battery won’t last the entire day and you’ve made a routine out of charging up your phone while you sleep.
According to tech experts, charging your phone overnight chips away at the phone’s long term battery capacity much faster than if you only charged your phone for a couple of hours each day.
“If you think about it, charging your phone while you’re sleeping results in the phone being on the charger for 3-4 months a year,” says Hatem Zeine, founder of Ossia, a developer of wireless charging technology told Time. “So even though the manufacturers try their best to cover this scenario, this process inevitably lowers the capacity of your phone’s battery.”
One expert said that if you must charge overnight, you should consider placing your phone on a saucer while you snooze.
Placing your phone under your pillow is a fire hazard, but propping it on a non flammable surface should keep you safe.
The good news is that tech experts agree, you can’t overcharge your phone. Once your battery is charged to 100%, the hardware inside shuts off the charging. “Modern smart phones are smart, meaning that they have built in protection chips that will safeguard the phone from taking in more charge than what it should,” says Edo Campos, spokesperson for battery-maker Anker. “Good quality chargers also have protection chips that prevent the charger from releasing more power than what’s needed.”
While you won’t see the battery damage immediately, you will see the effects of overnight charging in about two to three years. If you get a new phone every couple of years, great–but if not, a failing battery can be a real pain.
So what do these experts recommend?
- Don’t wait until your phone gets close to a 0% battery charge until you recharge it.
- Once your phone gets down to around a 35% or 40% plug it into a charger since full charges wear out your battery faster
- Keep your phone cool while it charges because heat damages you phone. So take it out of the case while it charges and don’t put it under your pillow or blankets.