Why you shouldn't charge your phone overnight

For many of us, the last thing we do before retiring to bed is to plug our smartphones into the wall so they're fully charged in the morning. But tech experts have now warned that this habit might be damaging your phone, reports The Sun.

It’s not unusual to have been saddled with countless theories or “smartphone hacks” flying around to maintain your smartphone battery’s integrity.

Some say you should let batteries drain to zero before juicing them up.

Others claim you should recharge it when it's at about 50 per cent to make it last longer.

But a recent report appears to have put rumours to bed, once and for all.

It details how batteries, similarly to most cars, depreciate from the moment of first use.

So if you keep your phone plugged in overnight, you're increasing the time it is hooked up to a power supply and chipping away at its long-term battery capacity faster than if you only charged it for a couple of hours.

"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."

Within two years of buying the gadget, you are likely to spot battery drain.

But you can combat it by making small changes to your charging habits.

Wait until you get to about 35 per cent or 40 per cent battery before juicing it up to preserve it in the long run.

Keeping it cool will also help, so remove its case.

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 nonflammable surface should keep you safe.