Product model: INR18650-2500mAh (BEC) Nominal capacity: 2500mAh Nominal voltage: 3.7V Cycle life: 0.5C charge 3C discharge 250cycles≥80% Maximum support discharge current: 3C Internal resistance range: ≤23mΩ Diameter: 18.3mm Height: 65.0mm Weight: 43.8±1g Optional range of cap models: power CID cap