Warranty: Do not use Apple's 5V / 1A stock charger or a computer's USB port to power your wireless charger. Place your phone on the center of the PowerWave Stand to ensure stable charging. Cases made of metal and attachments such as magnets, cards, and grips will interfere with charging. Quick Charge 2.0/3.0 wall adapter required for Fast Charge Mode.
Specifications: Charge Current: 70-90mA x 4Ch
Trickle Charge Current: 5mA
Charging Cell Configuration: 1, 2, 3, or 4 9V NiMH rechargeables
Microprocessor: Negative Delta V, Zero Delta V, Temperature and Timer
Power Supply Voltage: 12V 1000mA
Charging Seats: 4 x 9V
Feature: No more worrying about where to put your charger, the MH-C490F charger is so compact that you can basically put it anywhere
Intelligent charger
Unlike old 9V battery chargers, the MH-C490F charger can charge 1 to 4 8.4V and 9.6V batteries within 2 hours. No more waiting overnight to have the batteries fully charged. Perfect for instant power on the go.