JRL Ghost Cordless ClipperModel No. 2020C W Features: Patented Reset IQ Charge Technology A new way of charging that extends the battery life. This design will consistently charge to 100% even after extended use. 3 Hours For Regular Charging, 5 Hours for Reset IQ Charging. Patented Smart Clip Technology Clipper senses blade resistance and revs up the motor speed, therefore clipper will never drag or stall. Guarantees a smooth even cut every time. Constant Power 2 Adjustment