The foundation of the TranzVolt G2 System is the upgraded power box and its amazing improvements over the previous model. The TranzVolt G2 now utilizes AmSteel-Blue high-performance 12-strand single braid of 100% Dyneema® fiber cable which is extremely low stretch, superior flex, and wear resistance. The eco-friendly TranzVolt G2 eliminates the need for the messy and costly life cycle use of fuel and oil. The G2 power box carries material as high as 44 ft. at a rate of 2 ft. per second, thats the height of a two-story building in under 25 seconds. Using two standard DeWalt* 20v, rechargeable batteries, the power box offers a full 8 hours while lifting up to 250 lbs. The TranzVolt G2 has been tested to the equivalent of 5 years usage, over 6,500 trips up and down 25 ft. with a load of 250 lbs.