Welch Allyn Lithium Ion 3.5V Battery Handle, Black, Each

Lithium Ion Handle only for use in Universal Desk Charger, Half the weight of traditional 3.5 V handles, Fits all Welch Allyn 3.5 V instrument heads, Quick-turn USB Charging Module plugs into any USB port and is easy to remove on and off with a 90-degree turn, 120 minutes of on-time (compared to 60 minutes for standard NiCad handles), Features lithium ion battery technology that has no “memory” effect, Low-battery indicator, Made of sturdy CYCOLOY engineering resin