Samsung 50E 21700

Samsung 50E 21700 is a high-quality lithium-ion 21700 battery cell from Samsung, combining high capacity with moderate current delivery. It has a nominal capacity of around 5000 mAh and a nominal voltage of approximately 3.6 V, with dimensions of about 21 mm in diameter and 70 mm in length, storing a substantial amount of energy in a compact size. The cells are rated for a continuous discharge current of around 9–10 A, with higher short-term pulses possible, making them suitable for e-bikes, scooters, portable battery packs, power tools, and other moderately high-drain devices. Low internal resistance (<20 mΩ) helps reduce heat under load. Samsung 50E cells are widely used in battery packs assembled in series and parallel to achieve the desired voltage, current, and capacity.