Lithium Batteries for Medical Devices

Medical devices use primary lithium batteries in two distinct places: small portable monitors and meters that run on button cells, and larger instruments that run on CR cylindrical cells. Button cells in the CR series — CR2032, CR2025, CR2016, CR2450 and CR2477 — power compact devices where space is tight and the cell must hold its charge through storage and distribution. The button cell line is stated to have a shelf life of more than 5 years, low self-discharge and RoHS-compliant mercury-free construction.

Reliability is the deciding factor in medical use. A device that monitors a patient, measures a vital sign or delivers a reading on demand must work the first time it is switched on, even after months in storage. That is why long shelf life and stable voltage matter more than the lowest unit cost. For the same reason, specifications should be confirmed against the final datasheet before mass production — a note that appears in the source button-cell table and applies with full force to medical orders.

Before ordering, confirm the exact model, the thickness for button cells, whether tabs or leads are required, the quantity and the final datasheet. Minimum order value is USD $500, according to the company FAQ, and samples are available. Lead time is confirmed per order. Certificates are available upon request.

Related pages: Button Cell Batteries, CR2032, CR2450, LiMnO2 Batteries.