Power 18650 battery and ordinary 18650 battery are two common lithium ion battery types, which have some differences in design, usage, performance, and security. This article will introduce the difference between power 18650 batteries and ordinary 18650 batteries to help readers better understand these two types of batteries.

1. Use difference

• power 18650 battery: power 18650 battery is mainly used for applications requiring high power output and long cycle charge and discharge, such as electric tools, electric vehicles, unmanned aerial vehicles, etc. Power 18650 battery has high discharge current and cycle life, which is suitable for occasions with high power output requirements.
• Ordinary 18650 battery: ordinary 18650 batteries are mainly used for applications with low power requirements such as portable electronic products, hand-held lamps, mobile power supplies, etc. Ordinary 18650 batteries usually focus on energy density and stability, but do not need to bear the requirements of high power output and long cycle.

2. Differences between design and structure

• power 18650 battery: power 18650 batteries usually use thicker positive and negative electrode sheets and larger electrolyte capacity to provide higher current output and longer cycle life. The design of power 18650 battery pays more attention to high power output and cycle stability.
• Ordinary 18650 battery: ordinary 18650 batteries usually use thinner positive and negative electrode sheets and smaller electrolyte capacity to provide higher energy density and lighter appearance. The design of ordinary 18650 batteries pays more attention to energy density and lightweight.

3. Performance differences

• power 18650 battery: power 18650 battery has high discharge current and cycle life, which canProvides stable high power output. The power 18650 battery has low internal resistance and high discharge efficiency, which is suitable for applications requiring high power output.
• Ordinary 18650 battery: ordinary 18650 batteries have higher energy density and longer standby time, but discharge current and cycle life are relatively low. Ordinary 18650 batteries are suitable for applications that require high energy density and portability.

4. Security differences

• power 18650 battery: The design of power 18650 battery usually takes higher safety requirements into consideration, and more safety measures and protection devices are adopted to prevent safety problems such as overcharge, overdischarge and short circuit.
• Ordinary 18650 battery: the safety design of ordinary 18650 batteries is relatively simple, and basic protection circuits are usually adopted, which may be poor for long-term high-power output or harsh environment.

By understanding the differences between power 18650 battery and ordinary 18650 battery in terms of usage, design, performance and safety, you can select the appropriate battery type according to specific requirements. No matter for applications requiring high power output or applications requiring high energy density and portability, there are corresponding 18650 battery types to choose from.