Leave the guess work out of it and never be confused about which packs are fully charged again. These handy little charged/discharged indicator caps are easily fitted to an XT60 battery connector and can be tucked away in your Lipoly bag when not in use. These great little caps provide additional comfort by further reducing the chance an electrical short circuit whilst in transit or storage. Included: 5 x Red Silicone XT60 Indicator Caps 5 x Green Silicone XT60 Indicator Caps