The BETA rechargeable handle is suitable for all Heine instruments that fit the standard BETA handles. This BETA L version has a Li-ion battery with a power indicator and charges quickly, within 2 hours. The status of charging in the bottom, lights up in the display for 10 seconds when the handle is clicked on or removed from the charger. The handle and bottom inserts are available as a BETA L version with 3.5VLi-ion battery and/or as a BETA NT version with NiMH battery. The handle and bottom insert for the BETA NT handle with 3.5V NiMH battery do not have a power indicator.