- Twice the run time compared to existing 2.0 Ah and nearly 3x more run time over 1.3 Ah battery by using high quality Litheon cells
- Most compact 12V MAX 4.0 Ah pack
- Lightest weight
- Cold weather Performance - works up to -4-degrees F
Bosch 12-volt MAX BAT420 combines Bosch's best-in-class engineering with optimal performance. Each compact robust cell packs in more energy than ever before with increased efficiency for even longer tool run times. The slim and compact design is the smallest and lightest battery pack with 4.0Ah in the market, making it the perfect battery option for working overhead.
Bosch's Electronic Cell Protection
The BAT420 battery features advanced Bosch engineering to deliver unparalleled quality, reliability, and jobsite tough durability. This Bosch 12V MAX battery includes Electronic Cell Protection (ECP). Electronic Cell Protection guards against overheating and overloading.
Cold Weather Performance
With advanced pack design and cell chemistry, Bosch battery packs not only cool faster while you work, but also work in the most frigid temperatures – down to -4° F.
100% More Run Time
The BAT420 12-volt MAX 4.0 Ah battery offers up to 100% more run-time compared to the existing 2.0 Ah. Bosch’s battery pack design protects the battery and tool resulting in optimal battery life and performance for the user.
Bosch’s BAT420 is compatible with all Bosch 12V MAX lithium-ion tools and chargers making it extremely easy and convenient to use across various tools.