Campagnolo eps battery charger v2this charger kit will keep your eps electronic power shift battery charged the battery is charged directly on the bike this kit is required for charging the v2 power unit this kit is not compatible with the original power unit as the v2 battery has a different charging port featuresthere are 2 leds on the body of the power supply unit that perform the following functions green led this lights up if it is powered by the mains orange led this lights up when