[Compatible With 18V Batteries] The cordless submersible water pump is compatible with 18V batteries: BL1830, BL1830B, BL1840, BL1840B, BL1850, BL1860B. This submersible water/oil transfer pump works with a charger adapter or cable for sump pump use (battery not included). [Wide Application] This portable transfer water pump is ideal for removing water from swimming pool covers, basements, pits, ponds, windows, rain barrels, boat covers, and more. It is also suitable for irrigation, garden watering, car washing, and other household or outdoor uses. [Efficient Utility] The pump delivers a maximum flow rate of 635 GPH, with a no-load speed of 4500 RPM, flow rate of 30 L/min, and a maximum current of 7A with automatic protection. It handles draining tasks quickly and operates with low noise. (Note: The switch should not be immersed in water.) [Quality Material] Constructed with full-shell environmental thermoplastic ABS and metal, the pump is durable and resistant to heat (up to 90°F/35°C), helping extend service life. The removable filter features a dense grid design that effectively prevents sediment from entering and blocking the system, ensuring safe operation and improved efficiency. Color: Blue & Black Material: ABS + Metal Package Contents: 1 x Cordless Submersible Water Pump 1 x Clip Note: Light reflection and different displays may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3 cm.