what is the MINIMUM current needed by different models to start charging?
please specify each model seperately.
Why do you need this info?
Apple's iPads use 3 different chargers - Mini @5W; IPads 1, 2, & 3 @10W; and iPad 4 @12W.
The typical USB port on most computers is rated at 2.5W. When you plug the iPad into the USB port, the iPad will show "Not Charging", however, it will charge but very slowly. So, 2.5W (5V @ 0.5A) is about the minimum.
Cheers, Tom 😉
Ipads require 5 volts to charge..
if you want to charge it using usb 2.0
download and install asus ai charger available for free here
http://event.asus.com/mb/2010/ai_charger/
(click the download now button)
why?
there are a lot of crowdfunding projects running selling chargers or batteries with "open specs" ;)
so I would like to know what exactly the minimum for each device is showing "charging"
and please do not reply with : you should only buy apple products
did I ask for voltage or usb specification?
urs-m wrote:
did I ask for voltage or usb specification?
People were trying to help answer your question without knowing much background. Chastising them or complaining about the answers that these volunteers are giving you will not encourage others to help. Just say "Thank you."
There is no real minimum. Lower current will still charge the devices but it will take longer.
charging: minimum current
