How Many Volts In A Phone Charger. The iPad charger will be faster to charge your phone. An iPhone charger delivers 5 Watts 5 volts at 1000 mA.
As long as the voltage is OK for instance 5V for a USB-based charger the phone will draw as much as it needs or as much as the charger can provide whatever limit it reaches first. Wattage W is the rate of water output which is found by multiplying the voltage by the amperage. A Retina iPad mini charger delivers 10 watts 51 volts.
You now have a DMM that can measure voltage of Smart Phone Chargers.
Most iPhones and Android phones need only 5 watts 5 volts X 1 amp to charge. Wattage is the overall measurement of power that flows through your charger so a higher cell phone charger wattage means that your device will charge faster. A PC USB charger delivers 25 Watts of power 5 volts at 500 mA. The cheap portable charger that I mentioned in the beginning measured at 62 Volts.
