The upgrades to the 3-wheel and battery models of the Hyundai 15BT-9U series, and the new technology it offers, provide increased efficiency and durability. The force feedback steering is an advantage for the operator. The BT-9U series machines are Li-ion battery ready, which will allow them to operate continuously for long periods and with fast and intermittent charges. These batteries are virtually maintenance free and are guaranteed for 5 years and 15,000 hours.
