Smart battery I/II/III X 2. TYPEâ 1# HTRC T400 Pro Lipo. If item is defective after 3 months, you can still send it back to us. Plug type (optional) EU, US, UK, AU. Specifically designed for charging LiPo/LiFe/Lilon/LiHV/NiCd/NiMh/Pb smart batteries.