Healthlink 3.5 V Rechargeable Nickel-Cadmium Battery is an equivalent to the Welch Allyn 72200 battery and is made for use with Welch Allyn 71670, 3.5V NiCad Rechargeable Handle for otoscopes and ophthalmoscopes. These batteries have a NiCad body and are very reliable.

Healthlink 3.5 V Rechargeable Nickel-Cadmium Battery Features: 

• Rechargeable battery
• 3.5V 
• Nickel-cadmium construction
• Easy to use
• Works on both Welch Allyn othoscopes and ophthalmoscopes