❓ What’s the difference between 3S, 4S, and 6S drone batteries?

The 'S' number refers to the number of cells connected in series in a LiPo battery:

• 3S: 11.1V (good for beginners)
• 4S: 14.8V (most common for mid-range drones)
• 6S: 22.2V (high-performance/professional use)

Higher voltage (more S) generally means more power and speed, but requires more careful handling and compatible electronics. For instance, a 4S battery will provide more punch and acceleration than a 3S, but will drain faster. Always ensure your drone's electronic speed controllers (ESCs) and motors are rated for your chosen battery voltage.