Can I use a 4000 mA to Charge a Iphone?
Hi, I'm building a USB solar power charger and I have a battery setup on series/ Parallel and it creates 5 volts, 4000mA. I know that an iPhone cell hold about 1,4000 mA, I was wondering if I could charge the phone with 4000 mA or will it be to much.
As long as your setup meets the USB charger specifications, it should be okay. The "4000 mA" is the *maximum* that your setup can deliver. It doesn't deliver that all the time; that depends on what the iPhone takes from the charger.
The USB 3.1 specification allows for up to 3000 mA.
No idea what 1,4000 is. Hoping that you meant 1400.
5V charging voltage will not charge an iPhone because it has a nominal 3.8V battery.
14000mAH CHARGES WITH 4000mA REQUIRES 3.5 HOURS CHARGING TIME OR MORE. CURRENT IS QUITE SMALL COMPARE TO THE ORIGINAL CHARGER CAN PROVIDE.
Providing the USB voltage is correct, it is unimportant what current a charger is CAPABLE of supplying.
USB is USB, and any device that is designed to charge from a USB source will only draw what it is DESIGNED to draw.
You just don't understand electricity.
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