Part 1: Why is the 18650 Battery the “Heart of Power” for Robots?

In the field of robotics, the lithium-ion batteries 18650 (a cylindrical battery with an 18mm diameter and 65mm length) has become the preferred power source for everything from household robot vacuum cleaners to industrial robotic arms due to its outstanding overall performance. So what makes it so exceptional?

1. High energy density for lightweight, long-lasting performance

The lithium-ion batteries 18650 has an extremely high energy density, meaning it can store more electrical energy within a limited volume and weight. This is crucial for robots that need to move autonomously and are highly sensitive to weight, directly affecting their mobility and single-charge endurance.

2. Strong discharge capability providing instant “burst power”

Agile robotic movements, such as sudden starts, rapid running, or heavy-load tasks, require the battery to deliver a large current instantly. High-rate 18650 cells designed specifically for robots can reach discharge rates up to 30C, fully meeting the peak power demands of dynamic robotic operations.

3. Standardization and economies of scale, ensuring both cost-effectiveness and reliability

As one of the most mature cylindrical lithium-ion battery standards, lithium-ion batteries 18650 are easy to obtain, cost-effective, and highly consistent. This “modular” standard feature provides a stable and reliable power foundation for robot design.

So, how can the performance of a single cell be transformed into a powerful power system suitable for various robots? Please continue reading Part 2.