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Does charging your iPhone with a higher wattage charger have any negative effects?
No. The power rating of a charger has no bearing on the life of the battery nor the consumption of power by the device. A higher wattage charger only means it can supply up to the specified amount of current, not that it will push that amount of current to the device.
How many watts can iPhone 7 plus handle?
According to the Apple Online Store, the 12W USB Power Adapter is compatible with the iPhone 7 and 7+. Both 4.7” and 5.5” iPhones can use up to 10W power adapters to charge faster, as measured by an ammeter and System Information.
Is it bad to use a higher watt charger for my phone?
Not at all. In fact, a higher amperage charger will likely charge your phone even faster, and it can do so safely. If they’re not using the same quick charge technology, it will still charge you phone—it’ll just do it a bit slower.
Is it OK to use 10W charger on iPhone 7 Plus?
Yes, it’s perfectly fine. The battery on the phone controls how much power is delivered and will allow only what’s safe. You’re charge time should be reduced, too. MoreLess Oct 18, 2017 1:49 PM
What happens if I charge my phone to 12W?
However, if you connect the same phone rated at 12W and connect it to a charger that only supplies 5W, either it will charge slowly or it may damage your charger and possibly your phone. This is where the “intelligence” comes with with respect to USB-C and Power Delivery.
Can a iPhone 5 Charger damage the battery?
Not true for the 5 and earlier, which will only use 1 amp regardless of what is available. It will not “hurt” your iPhone, however with long term use and everyday charging with the larger amperage, you will damage your battery faster and it will start performing worse more quickly than it would normally.
Is it bad to use a higher wattage Charger?
However, it can be said if Apple’s charging strategy is aggressive (fast-charging), then it is possible that a higher wattage charger would enable Apple to deliver greater charging currents that may be deleterious to the battery’s longevity. Batteries are complex devices – chargers are not (relatively speaking at least).