When the insole or the shoe is tilted vertically, the colors of the LED indicate the battery charge level:
- when the led is blue, the charge level is greater than 75%,
- when the led is green, the charge level is greater than 25%,
- the LED turns red below 25% of its capacity, a few hours of use remain.
When the insole or the shoe are horizontal or at other angles, the colors of the LED provide information on the types of communications in progress (GSM, GPS, Bluetooth). For more information see the XSole PTI insoles LED guide.
If the LED does not flash, it means that the soleplate is discharged.