Product model: INR18650-1800mAh (AHH) Nominal capacity: 1800mAh Nominal voltage: 3.7V Cycle life: 1C charge 5C discharge 250cycles≥80% Maximum support discharge current: 5C Internal resistance: ≤20mΩ Diameter: 18.3mm Height: 65.0mm Weight: 43±1g Optional range of cap models: power CID cap