Excel 18V 2 x 4.0Ah Li-ion Battery & Fan-Cooled Smart Charger The Excel 18V 4.0Ah Battery with Fan-Cooled Smart Charger is a high-capacity lithium-ion battery that provides long runtime and fast charging. It is compatible with all Excel 18V tools. The battery also has a fan-cooled smart charger that helps extend the battery's lifespan. Features Excel 18V 4.0Ah Li-ion Battery: Design: Excel long life 4.0Ah lithium-ion battery with charge indicator can be charged or discharged as needed without loss of capacity. Suitability: Recommended to all Excel 18V battery series. Widely Application: Suitable for Impact Drill, Impact Wrench, Impact Driver, LED Torch, Angle Grinder, Jig Saw, Multi-Tool, Circular Saw, Sabre Saw, Planer, Nail Gun, SDS Rotary Hammer. Excel 100-240V Fan-Cooled Smart Charger 5.0A EXL125W: Design: Fan-cooled smart charger with diode battery information system. Compatibility: Charger is compatible with Excel 2.0Ah and 5.0Ah lithium-ion battery. Suitability: Recommended to all Excel 18V battery series. Charging Time: It takes upto 30 minute to charge a 2.0Ah battery and 80 minute to charge a 5.0Ah battery. Comes with: 2 x 18V 4.0Ah Li-ion Battery 1 x 100-240V Fan-Cooled Smart Charger 5.0A Specification Excel 18V 4.0Ah Li-ion Battery: Voltage: 18V Battery Type: Li-ion Battery Capacity: 4.0Ah Excel 100-240V Fan-Cooled Smart Charger 5.0A EXL125W: Input: 100-240V/AC, 50/60Hz Power: 125W Output Voltage: 20V/DC Battery Chemistry: Li-ion Charging Current: 5.0A Charging Time (2.0Ah Battery): 30min Charging Time (5.0Ah Battery): 80min Fast Charging: Yes Fan Cooled System: Yes