A long lasting, powerful 4ah rechargeable Lithium Ion Battery for use with Bosch's 36v Garden Tools. Lithium Ion batteries are lightweight, have a low rate of self discharge & do not suffer from memory effect (so do not need to be fully drained of power prior to charging). Bosch's Electronic Cell Protection technology defends against overload, overheating & deep discharge. Features and Benefits• Lithium-ion technology• Bosch Electronic Cell Protection guarantees long lifetime of the battery• Compact, durable and quickly charged• Full power at all times• Long lifetime• High power, low weight• Same power at half the sizeSpecificationsBattery Type - Lithium-ionVoltage - 36vBattery Capacity - 4ahCompatibility:Compatible with all Bosch 36v cordless garden tools from the Home & Garden (Green) range.