Once we receive an order, we pull the appropriate number of cells and check voltage to ensure no dead cells. We also double-check for physical damage, then place them in plastic holders to keep them safely spaced apart and wrap them in layers of bubble wrap. We include a capacity sheet and data sheet for reference. When you receive the cells, they should all be around 3.0 – 3.5 volts. Make sure you charge all cells prior to use.