We at BECELL are proud to introduce the latest innovation in rechargeable battery technology: the Reliance INR21700-RH60 high-performance lithium-ion cell. Manufactured by Jiangsu Reliance Energy Tech. Co., Ltd., this next-generation 21700 cell is now available for pre-order ahead of its official mass production in March 2026.

Product Overview
The INR21700-RH60 is a high-capacity cylindrical lithium-ion cell with a minimum capacity of 5850mAh and a nominal voltage of 3.6V. Weighing just ≤71g, it delivers exceptional energy density and power performance, making it ideal for:
- Power tools & outdoor equipment
- Electric mobility (e-bikes, scooters)
- Energy storage systems
- High-drain portable devices
- Industrial and backup power applications
Key Features & Specifications
- High Capacity: 5850mAh (min.) @ 0.2C discharge
- Low Internal Resistance: ≤7 mΩ (AC @ 1kHz)
- High Discharge Capability: Supports up to 20A continuous discharge with temperature cutoff protection
- Wide Operating Range:
- Charge: -10°C to 45°C (ambient)
- Discharge: -40°C to 60°C (ambient)
- Long Cycle Life: ≥80% capacity retention after 500 cycles @ 6A charge / 12A discharge
- Robust Safety: Complies with UL1642, IEC62133, and UN38.3 standards
- Reliable Storage Performance: Excellent capacity recovery after high-temperature storage
Engineered for Safety & Reliability
Every INR21700-RH60 cell undergoes rigorous validation, including:
- Overcharge, short-circuit, crush, drop, and thermal tests
- Vibration and mechanical integrity verification
- Performance testing across extreme temperatures
Cells are shipped at approx. 30% state of charge (3.50–3.57V) and are designed for integration into well-protected battery systems.
Pre-Order Now – Samples Available
Mass production is scheduled for March 2026, but BECELL is now accepting pre-orders and sample requests for evaluation and early development.
Why Pre-Order with BECELL?
- Early access to samples for testing and prototyping
- Priority allocation in the first production batch
- Dedicated technical support from BECELL’s engineering team
- Competitive introductory pricing for early partners
