Bosch Home & Garden 18V 4.0 Ah Replacement Lithium-Ion Battery PBA, Compatible with Tools from the Green DIY POWER FOR ALL 18V System

Battery pack for all tools in the Bosch 18V Power range for ALL systems.The 4.0V 18V battery is a practical DIY accessory for all tools in the 18V Power for ALL systems. The battery fits all tools and so you avoid any extra costs. Thanks to the innovative lithium-ion technology and Electronic Cell Protection from Bosch, users can trust that the battery has a long life. This advanced technology protects the battery from self-discharge and memory effect.