Samsung 40T | 21700 4000mAh 35A Battery

🔋 Overview The Samsung 40T is a premium 21700-sized Li‑ion cell engineered for power-hungry applications. With 4,000 mAh capacity and a true continuous discharge rating of 35 A, this cell delivers rare balance between high energy and high power—ideal for e‑bikes, high-wattage flashlights, power tools, and more. ⚡ Why It Matters No capacity compromise: Unlike many “high-drain” cells, the 40T maintains full capacity without throttling or premature cutoff, delivering consistent performance under load . Built by Samsung SDI, a global leader in battery R&D, ensuring reliable quality and robust cycle life. 🧪 Technical Specs Feature Specification Nominal Capacity 4,000 mAh Continuous Discharge Current 35 A Nominal Voltage 3.6 V Max Charge Voltage 4.2 V Discharge Cut-off 2.5 V Dimensions Ø 21.1 mm × 70.4 mm Weight ~68 g Cell Type INR 21700, flat-top, unprotected Origin South Korea (Samsung SDI) Designation INR21700‑40T, 40T3 Datasheet Available Yes (Spec