Stihl BGA 57 Cordless Leaf Blower 36V [AK] (Kit)Stihl BGA 57 Cordless Leaf Blower 36V [AK] (Kit) With the STIHL BGA 57 cordless blower you have a handy blower for private tasks with which you can quickly and effectively remove leaves and dirt from smaller areas. Weighing just 2. 3 kg (without battery), the STIHL BGA 57 cordless leaf blower is very light. Rated Voltage (V) 36 Weight (kg) 2. 3 Sound pressure level (dB(A)) 79 Sound power level (dB(A)) 90 Vibration level right (m s) 0. 6 Blowing force