With the Ronix 8994 Quick Charger, you can fully charge all of this brand's 20V 89 series batteries in a minimum amount of time. You can easily use the Ronix 8994 Dual Quick Charger without worrying about overcharging, excessive current consumption, or battery heating during use. The input voltage of the Ronix 8994 Quick Charger is 220-240V, 50-60Hz, and the output voltage of this device is 22V, 2.2A for two outputs.