Communication Between the battery and tool optimizes performance for all applications. LED fuel gauge provides immediate feedback on state of charge. Cat® 18V Graphene batteries are backed by a 5 year warranty. Cat® Outdoor Power Equipment utilizes Brushless 2.0 motor technology and 60V Max batteries that run cooler and charge https://masal-oku15.robhasawiki.com/10995667/the_ultimate_guide_to_cat_power_tools