Powered by lithium ion technology, the clipper outperforms standard Wahl® rechargeable clippers by providing up to two times the run time, clocking in at one hour and forty minutes on a full charge. This eliminates the need for frequent recharging, and provides uncompromised cutting while clipping your dog. It also provides: 3X more power then Wahl's Basic Pet Clipper. Wahl's Lithium Ion blades are designed for no snag - no pull. 15 minute quick charge for over 8 minutes of use.