Read more: The explosive race to totally reinvent the smartphone battery Charging your phone on airplane mode makes it charge fasterĪ common tip to speed up phone charging when you’re in a hurry is to stick it on airplane mode. “Your battery could give you more charge if you went beyond removing half of the lithium, but you wouldn't be able to do that very many times.” Most of the time, they’re set so only around half of the lithium in the lithium cobalt oxide layer is removed during one full charge. That’s why manufacturers set limits on the amount of charge in their batteries. To make batteries last for hundreds or thousands of charge cycles, manufacturers place limits on the amount of juice that batteries can discharge. Increasing the available charge within a battery reduces the number of times that battery can be charged and discharged without being damaged internally. At the crux of this problem is a delicate trade-off played by manufacturers. There is more juice in your smartphone battery than the percentage displayed suggests, but if you used that juice you’d end up dramatically reducing the overall lifespan of the battery. Even when your battery is at 100 per cent, there’s still room for some more charge To help sort the science from the folklore, we asked a battery expert to give their verdict on some of the most pervasive myths, explain the science behind the rumours and, just maybe, offer us some sage advice on extending the life of our smartphones. Whether it’s avoiding leaving your phone on charge overnight, or powering off to give the battery a little break, we’re forever looking for ways to eke out a little more performance from our overworked batteries, even if the method doesn’t make an awful lot of sense. To make up for these inadequacies, we’ve made all kinds of battery myths. And nowhere is this more pronounced than when it comes to the fickle battery, which will drop 20 per cent charge quicker than you can toggle Bluetooth off and give up the ghost entirely after a couple of years of charging. For an object that barely ever leaves our palms, the smartphone can sometimes feel like an arcane piece of wizardry.
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