Battery pack 4x ProCORE18V 4.0Ah + 2x ProCORE18V 8.0Ah. This is the combination of the compact and lightweight ProCORE18V 4.0Ah battery and the powerful ProCORE18V 8.0Ah battery, providing the power of a wired 1,800-watt tool. Our latest cell technology with 21700 cells and intelligent battery management ensures 87% more performance than a standard battery. The COOLPACK 2.0 technology of this battery offers excellent thermal management for a longer lifespan and runtime. The ProCORE18V 4.0Ah and 8.0Ah batteries are equipped with a high-resolution charge level indicator with 5 LEDs. All our batteries have been compatible with new and existing Bosch Professional tools within the same voltage class since 2008. The L-BOXX 136, with its specially designed robust insert, provides an improved storage and transport solution as part of the Bosch Mobility System. The optimized click mechanism of the L-BOXX allows for easy opening of stacked boxes for convenient handling. The comprehensive compatibility of the L-BOXX variants, tool inserts, and Sortimo vehicle equipment system ensures absolute flexibility. Included: 2x ProCORE18V 8.0Ah battery, 4x ProCORE 18V 4.0Ah battery, L-BOXX 136, 1/1 L-BOXX insert for starter sets.