When buying mobile phones, power banks, or electric vehicles, we were attracted by slogans such as "20000mAh large capacity" and "400 km long battery life". However, in actual use, we found that the nominal capacity is far from the real experience. The key behind this lies in the essential difference between battery capacity and energy. Battery ...

Recently, I helped a friend deal with a laptop whose touchpad bulged due to a swollen battery. After disassembling it, I found that the battery had expanded and deformed, which was very dangerous. What's even more frustrating is that the battery was replaced less than two months ago! My friend complained again and again, and I could only comfort...

In low temperature environments, the performance of lithium-ion batteries is not ideal. When commonly used lithium-ion batteries work at -10℃, their maximum charge and discharge capacity and terminal voltage will be greatly reduced compared to normal temperature. When the discharge temperature drops to -20℃, the available capacity will even be r...

Smart batteries are an outstanding product of modern technology that are gradually changing our understanding of battery technology. Their biggest advantage is the significant improvement in intelligent management and safety performance. This article discusses the advantages of smart batteries and how to charge them.   What is a Smart Battery? ...

Introduction to Vital Signs Monitors A vital sign monitor is a device used to track the health status of patients and is mainly used to monitor the vital signs of bed patients in hospital departments. These devices can measure and monitor key parameters such as blood pressure, body temperature, respiratory rate, pulse rate, mean arterial pressur...

Multi-parameter monitors are common medical equipment in hospitals and health teams. They are precision emergency instruments that can detect multiple physiological parameters of patients in real time. Common monitoring parameters include electrocardiogram, respiration, body temperature, blood pressure, blood oxygen saturation, and pulse rate. I...