Q: Why are there no LED's illuminated when I turn on my XS 0.8 or XC 0.8?

Both of these chargers do not have the mode buttons. That's why the product codes do not start with the "M" like almost all the other chargers in the range. It also means the LED's are only illuminated once you have turned the charger AC mains on at the wall and the DC cables are attached to a battery. Once connected the half battery LED light will illuminate after a few seconds confirming the charging has started.