What type of battery is typically used in portable medical equipment?

Lithium-ion batteries are commonly used in portable medical equipment due to their high energy density, lightweight nature, and ability to retain charge over time. They can provide a stable power output, which is essential for the consistent performance of medical devices. Furthermore, lithium-ion batteries have a longer cycle life compared to other battery types, allowing for more usage cycles before needing replacement. Their ability to support fast charging also makes them ideal for portable devices, reducing downtime during use.

In contrast, while nickel-cadmium batteries have been used in various applications, they suffer from the memory effect, which can limit performance over time. Alkaline batteries are typically used in devices that require infrequent use and can be less reliable for continuous applications due to their shorter lifespan under high-drain conditions. Lead-acid batteries, although robust and reliable for stationary applications, are heavier and bulkier, making them less suitable for portable medical equipment where weight and size are critical considerations.