The HCS-5300BAT Lithium battery pack is a SMART rechargeable battery that cannot be overcharged. When fully charged the battery has 14 hours of continuous speaking time and 50 hours of continuous listening time. They are fully detachable from the discussion units and a dead battery only takes two (2) hours to fully charge.
Lithium rechargeable battery pack
Used for supplying power to HCS-5300 series digital infrared
wireless conference unit