The bosch ahs 54 20 li cordless hedge cutter is a 36v lithium ion machine with a battery run time of 50 minutes and a battery charge time of 45 minutes the bosch ahs 54 20 has a 54cm blade and is able to cut branches up to 20mm in diameter for the power of this bosch hedge trimmer it is amazing that the weight is only 35kg this is the top of the range bosch cordless hedge trimmers and comes with a 2 year bosch warranty