Best Coin Cell Batteries for Blood Sugar Monitors and Medical Devices — Sealed Energy Reliable power is essential for medical devices like blood sugar monitors, digital thermometers, glucometers, and heart rate monitors. A small battery failure can disrupt critical health monitoring. https://medium.com/@juliyawatson/best-coin-cell-batteries-for-blood-sugar-monitors-and-medical-devices-sealed-energy-df06e4c26350