This cordless clipper uses a Li+ION rechargeable battery for longer cutting time between charges. With more than twice the running time of a regular battery, you have the ability to cut more and recharge less. It holds steady power for as long as the battery runs without torque reduction in the motor for cut after cut on any hair type. With a dual battery charging base, you can always have an optional back-up charged and ready to go. Designed with ultra-durable, break-resistant housing with clearcoat finish to protect against smudges and fingerprints.