This Bosch Blue Kit Includes: 1 x ProCORE18V 8.0AH Lithium Ion Battery 1 x GAL 1880CV Fast Charger The Bosch ProCORE18V Lithium-Ion battery is the most advanced 18V Lithium-Ion battery on the market. The new 21700 cells are able to store significant higher levels of energy and under load can deliver 2X the power and runtime of older 18V battery cells. Removing weight and size, increasing power and lifetime Bosch ProCORE18V batteries redefine cordless performance. The exclusive CoolPack 2.0 housing ensures heat is removed from the battery faster and more efficiently than any other battery pack. This means the battery runs cooler for longer and extends the lifetime by 135% of those without it. Using ProCORE18V with older Bosch 18V Professional tools users can experience up to 150% more applications per charge. Experience the power to ProCORE18V for yourself. The GAL 1880 is intelligent, identifying the voltage, Ah, temperature and charge level of each battery inserted. It will assess the condition and charge of the battery to maximize charge and minimize time.