10s 4p Samsung 2600 mah laptop battery cells in parallel with 11 s 1p A123 2300mah Dewalt battery cells. The A123 cells deliver the punch up the hills and the Samsung cells charge the A123 cells going down the hill.
Made from 6 year old tested cells from junked packs.
Good for about 15 miles easy.
Pack designed, engineered and built in Florida USA !