Bosch GSA18VLI Cordless Reciprocating Saw: Highest material removal rate and cutting performance in its class per battery charge. Extremely robust and durable 4-pole high-performance motor for a long lifetime. Compact design and low weight (only 2.3 kg) for comfortable working especially in tight spaces and overhead. Unique Bosch Premium lithium-ion technology for 400% longer lifetime and unbeatable battery runtime. Bosch Electronic Cell Protection (ECP): protects the battery against overload overheating and deep discharge. Bosch Electronic Motor Protection (EMP) protects the motor against overload and ensures a long lifetime. Practical battery charge level indicator: constantly shows how much energy is left in the battery. Gear head can be rotated in 90 degree steps. Handle can be used on right or left. Anti-rotation protective guard - quickly and easily adjustable provides reliable protection. Bosch Hyper Charge: due to the rapid charging process the batteries are charged to 75% after just half of the charge time. No memory effect: the battery can be charged regardless of the charging state at any time without damaging the cells.What is the Benefit of the Bosch 5.0ah Cool Touch Batteries 5.0 Ah Lithium-Ion CoolPack batteries - only from Bosch Additional 25% longer runtime for continuous working - Compared to Bosch 18V 4.0 Ah Coolpack Battery Up to 100% longer lifetime thanks to the Bosch Cool Pack 100% compatibility with existing tools and charger range Time to Fully Charge 50 Minutes Flexible Power System 2-year Bosch Battery Warranty Premium Service 5.0 Ah Coolpacks have finer cell windings than 3.0 Ah, allowing more power density (more fuel (Ah) in same pack size) and less electrical resistance / greater fuel efficiency (run-time per Ah). User benefits of the Bosch 5ah Cool Pack No need to change battery packs so often Fastest charging solution for 18V 5.0Ah battery pack in the market More Run Time with The Bosch Coolpac