Reliance NR21700-RS50

Reliance INR21700-RS50 is a lithium-ion battery cell in the 21700 format with high capacity and strong discharge performance. It is designed for use in high-power battery packs, electric vehicles, drones, power tools, and other high-load devices.

Type: Li-Ion cylindrical cell (unprotected)
Format: 21700 (diameter ~21.35 mm, length ~70.3 mm)
Capacity: ~5000 mAh (nominal working capacity ~4950 mAh)
Nominal voltage: 3.6 – 3.7 V
Maximum discharge current: up to 70 A (peak)
Recommended continuous discharge current: around 40 A for longer service life
Standard charging current: ~2.5 A
Weight: ~67 g
Casing: Gray, without built-in protection circuit (PCM/BMS)
Operating temperature range: approximately −40 °C to +80 °C (discharge)