Efest 18650 / 4000mAh / 10A Li-Ion Battery (2pcs)

The Efest 18650 4000mAh 10A Battery is a high-capacity lithium-ion rechargeable power cell, designed for efficient and long-lasting energy delivery. With a 4000mAh capacity and a continuous discharge rate of 10A, this battery is ideal for low-to-moderate-drain applications, ensuring stable power output and extended runtime.    FEATURES: High Capacity: 4000mAh provides longer usage time before needing a recharge. Moderate Discharge Rate: 10A continuous discharge, suitable for low-to-medium-drain devices. Lithium-Ion Chemistry: Ensures efficient, stable, and reliable power delivery. Rechargeable & Durable: Supports multiple charge cycles with minimal performance degradation. Compact 18650 Size: Universally compatible with a wide range of electronic devices.   SPECIFICATIONS: Positive Terminal Type: Flat Top Nominal Capacity: 4000mAh Continuous Discharge Rating (max): 10A Nominal Voltage: 3.6V Maximum Voltage: 4.2V Discharge cut-off Voltage: 2.5V Protected: No (Unprotected cell – use with proper safety measures) Rechargeable: Yes Cycle Life   ~300+ charge cycles Approx. Dimensions: 18.3mm x 65mm Approx. Weight: ~48g   INCLUDES: (2) Efest 18650 / 4000mAh / 10A Li-Ion Batteries