Product info Hyperion EOS Sentry - Battery Pack Checker The Hyperion EOS Sentry is a clever device that can show you the condition of your battery packs. It can be used with the most common battery types used for RC modeling, namely: LiIon (Lithium Ion) LiPo (Lithium Polymer) LiFe (Lithium Ferrite) NiCd (Nickel Cadmium) NiMH (Nickel Metal Hydrate) For Lithium based types (LiPo, LiIon, and LiFe), it will work with pack sizes of 2S to 7S and for NiCd and NiMH packs it supports 4 to 7 cells. There is no battery inside the EOS Sentry, it is powered from the battery pack you connect for testing. When you connect a pack to either of the two connectors (only one at a time) the EOS Sentry will display the total voltage and an estimate in percentage and bar graph showing how full the pack is. Product name Hyperion EOS Sentry - Battery Pack Checker Product number HP-EOS07SENTRY   In stock  Price for 1 23,34 EUR (incl. VAT) Amount    Buy   «-Back  USDDKKEUR     Show without VAT   Tip   Print If you have any questions feel free to call us.