How Many Amps Do You Need To Charge A Phone. It mainly depends on the type of phone you have and how many devices you need to charge at the same time. Hopefully you remember that amp hours are a measure.
More than about 25A and more than 2 output ports tends to be where price gets a bit non linear also avoid unless you need the extra capacity. E V I T. How many amps do the battery need to charge.
Lets say you charge your device for 2 hours every other day at 12A.
You can lead a horse to water but you cant make it drink Its not just V. While 18W chargers are fast charge-capable according to Apples support document in that same document Apple says that the iPhone 12 requires a 20W or better charger. If your utility company charges 12 cents per kWh rough US average then that means it costs you 26 cents per year to keep your device charged up. Most iPhones and Android phones need only 5 watts 5 volts X 1 amp to charge.
