- 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.