The overall goal of the program was to demonstrate use of Li-ion 6T –type batteries for commercial and military applications with a stable supplier base and verified business case. In the first phase of this program we demonstrated that Lithium-Ion 6T batteries can be successfully used in commercial vehicles as starter batteries. The results include the field testing of three battery suppliers in Class 8 truck tractors in a two different climate regions. For a future phase of the testing more challenging battery applications The Lithium-Ion 6T batteries would be used to power vehicle loads in addition to starting the engine. The applications we have identified include: 1) hotel load-idle reduction, 2) ePTO-Engine Start/Stop, 3) Hydraulic-Electric Lift-Gate.