Trinity 6-cell Vis-Pro EB Power 4200 matched cells. High capacity makes cells ideal for modified class racing as well as stock and modified classes. "VIS" stands for "voltage increasing system" packs are matched with a two second spread on run time, within three hundredths of a volt and two points on the internal resistance number. Race series features the same run time as the Team series cells and they have lower voltage

Charger: Having Negative DeltaV or Zero DeltaV Peaking capabilities
Discharger: Having capabilities to properly discharge batteries
Soldering on battery wire and a connector
Soldering Iron and Solder