Compatible with Kielder TYPE18 tools (excluding high torque Impact Wrenches and Angle Grinder). High quality 18v Li-ion cells maximise run-time and provide reliable, stable performance. A charged battery will hold its charge for 12 months without being used and there is no memory effect from partial charging. TYPE18 battery and tool electronics are in-sync to optimise current and power delivery. Features LED charge level indicator and quick release button to easily remove from tool. High quality 18v Li-ion cells provide reliable, stable performance. Holds charge for up to 12 months, if inactive. No memory effect from partial charging. LED charge level indicator. Compatible with all Kielder TYPE18 tools.SpecificationVoltage: 18vBattery Type: Lithium-ionCharge Time: 40 minutes (from flat)Watt Hours: 36Weight: 0.35kg