Futaba BR3000 Battery Checker Li-Ion LiPo LiFe NiCd NiMH Convenient way to keep tabs on your battery packs Quickly and legibly displays the voltage levels of battery packs Total voltage and remaining capacity are shown on a bar graph and as a percentage Can check 2-7 cell LiFe, LiPo and Li-Ion packs, as well as 4-7 cell NiCd and NiMH packs Operates on the power supplied from the connected battery