The Makita 18-Volt LXT Lithium-Ion Recipro Saw Kit combines cutting speed with convenience features for faster， more efficient cutting. It's powered by the industry's fastest-charging 18-Volt lithium-ion batteries， allowing users to remain in one battery platform and use the same fast-charging 18-Volt batteries on the XRJ04T as they use across the Makita 18-Volt LXT cordless tool line-up. The XRJ04T is equipped with efficiency features for faster cutting. The long 1-1/4 in. stroke length increases cutting efficiency and the refined crank mechanism design minimizes blade deflection and reduces vibration. Convenience features include a large two-finger variable speed trigger， electric brake and \"tool-less\" blade change for faster blade installation and removal. It's part of Makita's expanding 18-Volt Lithium-Ion system， the world's largest cordless tool system powered by 18-Volt Lithium-Ion slide-style batteries. Makita 18-Volt Lithium-Ion batteries have the fastest charge times in their categories， so they spend more time working and less time sitting on the charger. For improved tool performance and extended battery life， Makita created Star Protection Computer Controls. Star Protection is communication technology that allows the Star Protection-equipped tool and battery to exchange data in real time and monitor conditions during use to protect against overloading， over-discharging and overheating.

Makita-built variable speed motor delivers 0-2，800 strokes per minute and a 1-1/4 in. stroke length for faster cutting

"Tool-less" blade change system allows for faster blade installation and removal for increased productivity

Refined crank mechanism design minimizes blade deflection and reduces vibration

Compact and ergonomic design at only 19-1/8 in. L

Rubberized soft grip handle provides increased comfort on the job

Large 2-finger trigger for operator convenience

Electric brake for maximum productivity

Extreme Protection Technology (XPT) is engineered for improved dust and water resistance for operation in harsh conditions

18-Volt LXT lithium-ion 5.0Ah battery BL1850B， features an integrated LED battery charge level indicator

18-Volt LXT lithium-ion 5.0Ah battery BL1850B provides up to 50% more run time per charge compared to BL1830B

18-Volt LXT lithium-ion 5.0Ah battery BL1850B reaches a full charge in 45 minutes or less

Equipped with star protection computer controls to protect against overloading， over-discharging and over-heating

Rapid optimum charger communicates with the battery's built-in chip throughout the charging process to optimize battery life by actively controlling current， voltage and temperature

Rapid optimum charger has a built-in fan to cool the battery for faster， more efficient charging

Makita technology delivers category-leading charge time so the battery spends more time working and less time sitting on the charger

Compatible with Makita 18-Volt lithium-ion batteries with a star symbol