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Bosch Launches Next Generation Li-Ion Power Tool Batteries with 5.0Ah Battery Pack


New battery delivers longest runtime and lightest weight in 18V Li-Ion category


Mount Prospect, Ill.  - Power tool professionals continue to look for increased battery power and runtime capabilities for power hungry-system tools and all-day driving and drilling. Bosch answers this need with its newest Best Built power tool battery technology - the BAT621 5.0 Ah 18V Lithium-ion FatPack™ battery. The lightest, most compact and longest runtime FatPack style battery on the market, the BAT621 features the patented CoolPack™ technology for 100 percent longer recharge life and compatibility with the complete line of Bosch 18V Lithium-ion power tools.


The Bosch BAT621 is built with state-of-the-art high capacity low-resistance lithium-ion cells which increase the overall capacity from the current 4.0 Ah batteries by 25 percent. For professionals, this means improved runtime and performance for all tools, especially system tools such as rotary hammers, impact drivers, reciprocating saws and more. The BAT621 is then ready for more work with its Best Built CoolPack heat conductive housing, designed specifically to cool internal pack temperatures. A cooler running battery means longer recharge life - up to 100 percent longer versus similar packs without this feature.


Leveraging the latest in design innovation, the BAT621 maintains an identical size and weight footprint of the previous Bosch 4.0 Ah and 3.0 Ah 18V batteries, and is the lightest and most compact 5.0 Ah battery pack currently offered in the market. For added convenience, the pack comes standard with a fuel gauge so professionals always know they are ready to get to work.


The BAT621 will be available in May 2014 at authorized dealers nationwide for a suggested retail price of $129. To find out more or to locate a dealer, visit or call 877-BOSCH-99.


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About Bosch

The Bosch Group is a leading global supplier of technology and services, active in the fields of automotive technology, energy and building technology, industrial technology, and con­sumer goods. According to preliminary figures, more than 281,000 associates generated sales of 46.4 billion euro ($61.6 billion) in 2013*. The Bosch Group comprises Robert Bosch GmbH and its more than 350 subsidiaries and regional companies in some 60 countries. If its sales and service partners are included, then Bosch is represented in roughly 150 countries.


Its operations are divided into four business sectors: Automotive Technology, Industrial Technology, Consumer Goods, and Energy and Building Technology. This worldwide development, manufacturing, and sales network is the foundation for further growth. In 2013, Bosch applied for some 5,000 patents worldwide.  The Bosch Group's products and services are designed to fascinate, and to improve the quality of life by providing solutions which are both innovative and beneficial. In this way, the company offers technology worldwide that is "Invented for life." Additional information on the global organization is available online at,, and

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