Powerextra High capacity 36 Volt Li-ion Replacement Battery for Bosch 2 607 336 002 BAT818 11536VSR 18636-01 38636-01 GBH36V-Li Battery Type: Li-ion / Voltage:36V / Capacity:2000mAh No memory effect. Can be charged or discharged as needed without loss of capacity Battery for Bosch 2 607 336 002,BTA818 Cools the battery by forcing cool air through the battery's built-in air vents 30 Days money-back guarantee and 1 Year Limited Warranty