- Compatible for 18V B series lithium battery,such as BL1850B(197285-8),BL1840B(197270-1),BL1830B(197602-2),BL1430B(197618-7),BL1820B(197487-6)- Compatible for BL1850,BL1840,BL1440(196391-6),BL1415(194560-3),BL1815N(196781-3)- NOT compatible for G Series battery such as BL1813G(196663-9) BL1413G(196882-7) BL1415G BL1430G BL1815G and so on- NOT compatible for 18v Ni-CD battery such as 1822(194465-7) Details: - Easy Installation andamp; Multipurpose - Insert the battery and blade, and start using it without any other Installation tools; The jack design makes quick blade change poible; The battery of the reciprocating saw inside delivers no-load speed of 0 - 3000 RPM for strong, controlled, quickly cutting through wood, pipe, and metals.- Ultra-light Body andamp; Ergonomic Design - You can easily handle the power saw with just one hand which ensures better control. The handle is made of rubber material, and a very soft silicone grip, which reduces vibration and fatigue. And the safety button design reduces accidental start-ups to an extent.- Quick andamp; Tool-le Blade Change - Metal auto-lock chuck on clamp ensures blade changing mechanism allows you quickly swap out blades without using any extra tools; lets you easily switch between a variety of standard blades to cut wood, metal, ceramic, tile, plastic even tree limbs, very convenient and easy to use.- Super Rich Acceories - our packaging includes: One 6-inch blade for metal, one 6-inch for plastic, and one 6 andamp; 8-inch blade for wood, equipped with LED light.