The production of our V5 LiFePO4 battery cells has some problems and has to be delayed. There're no more V5 LiFePO4 battery cells in stock now. The next new batch of V5 LiFePO4 battery cells will be available on around June 5th, 2015.
Orders placed from now have to be postponed until the next batch of cells are available.
Sorry for the inconvenience it might cause.
LiFePO4 BMS and chargers are always in stock. We also have some V2.5 LiFePO4 cells in stock and can still make new battery packs with V2.5 cells. If you're interested in them, please send email to email@example.com.