Tenpower 21700 Batteries

Tenpower 21700 cells are tabless, high-drain lithium-ion cells made to push real current in demanding builds.

Tenpower focuses on high-output cylindrical cells, and its 21700 line — like the 50XG (5000mAh, 90A-class) — combines strong discharge with genuine capacity. The tabless design lowers internal resistance by connecting across the full electrode edge rather than through one tab, which means flatter voltage under load, less heat, and output that holds through the discharge.

Stepping up from 18650, that mix of capacity and high current makes Tenpower a strong option for drones, e-mobility, and other high-output 21700 builds.

Why builders choose them

• Tabless design — low resistance, flat discharge, cooler under load
• Serious high-drain current capability
• High-capacity options including the 90A-class 50XG
• 21700 capacity and energy advantage over 18650

Built for

• High-output drone and UAV packs
• E-bike, e-scooter, and light EV builds
• High-drain RC and performance applications
• Custom 21700 pack assembly where current matters