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Rechargeable Li‑ion Battery XTAR 21700‑4900 3.7V 4900mAh — 21700, 2.17 cm × 74.8 mm
Summary description:
Rechargeable XTAR 21700‑4900 is a 21700 Li‑ion cell with nominal voltage 3.7 V and capacity 4900 mAh. Physical dimensions: diameter 2.17 cm and height 74.8 mm. Supplied as a single battery for high‑capacity portable devices, flashlights and power banks. Follow safety guidance: do not expose to direct heat and use compatible chargers.