The large lithium-ion battery with a charge level indicator features modern technology that eliminates the bothersome "memory effect" and can be recharged without waiting for a complete discharge. Compatible with all DEDRA SAS + ALL battery devices. 4.0 Ah | Li-ION DEDRA SAS+ALL 18V – one battery – many options! To meet the needs of today's consumers and closely monitor global technological trends, DEDRA has developed an entirely new range of cordless power tools. DEDRA SAS + ALL is a modern solution with a battery system at its core. Whether you're a high-end professional or a DIY enthusiast, DEDRA SAS + ALL offers a wide range of efficient battery-powered tools that make your work easier with just one battery. Batteries include SAS+ALL 18V Battery, 2.0Ah, SAS+ALL 18V Battery, 4.0Ah, and SAS+ALL 18V Battery, 5.0Ah. Chargers available are Standard SAS+ALL, 18 V, 60 W, Fast SAS+ALL, 18 V, 100 W, Dual SAS+ALL, 18 V, 130 W, and USB Adapter.