Premium USB Charger Set by Tsunami Quake Tsunami Quake Premium Vapor Charger Set. The input rating for the USB Cable is DC 5V The output rating for the wall adapter is DC 5V 1A The input rating for the wall adapter is 100-240V-50/60Hz 0.15A This will give you a full charge on your battery in 3  4 hours The output rating of the USB charger is DC 5V 420mA