The RX Chip’s battery (module battery) charges when the bike is switched on. Depending on the year of manufacture, the light may need to be on, too. It takes a maximum of 6 hours to fully charge (when using a 4 A charger). Battery consumption depends on a number of factors, including where the bike is parked and the availability of the power supply. You can see the battery charge level in the RX Connect app by swiping up on the Bike tab in the map view.