BAT838 36 V 4.0Ah Lithium-Ion FatPack Battery

36 V 4.0Ah Lithium-Ion FatPack Battery

BAT838 BAT838

Product Description


The Bosch BAT838 CoolPack™ heat-conductive housing is specifically designed to cool internal cell temperatures for longer life. The Bosch BAT838 4.0 Ah Lithium-Ion battery delivers 50 percent more runtime versus a 2.6 Ah battery without CoolPack™ technology. Bosch batteries are compatible with electronc monitoring systems (EMS) on Bosch power tools that regulates voltage for heavy-duty applications. The Bosch BAT838 battery is built with advanced technology high-capacity, low-resistance Lithium-Ion cells. Features a fuel gauge to ensure that users always know their power level.


  • BAT838
BAT838 36 V 4.0Ah Lithium-Ion FatPack Battery

Technical Data


Battery Chemistry Lithium
Battery Voltage 36
Includes BAT838


  • Bosch BAT838 offers 50 percent more runtime over previous generation of Bosch 36V batteries
  • BAT838 4.0Ah 36V keeps the same footprint as previous generation 2.6Ah 36V batteries
  • Maximizes battery runtime on the jobsite and eliminates user frustration in looking for charged battery
  • Longer battery runtime increases productivity for critical system tools like rotary hammers, drill/drivers and saws