Batteries as main power supply or as backup in medical applications are becoming more and more common, and currently, we see a shift from lead-acid to Li-Ion batteries. The Li-Ion battery technology has a lot of advantages. Besides offering long-lasting and highly stable battery performance to power healthcare applications, the technology also provides reliable performance, low-weight design, and extended cycles. All in all, Li-Ion batteries are ideal for applications where time should be spent on patients and caregiving.