This is an indication that the battery needs to be replaced. Lithium batteries are considered to be “hazardous goods”, so we are unable to supply replacements directly.
The model number is printed on a label on the back for Pronto (RU960, TSU3500 or TSU9400) or on the front for Nevo (S70 or Q50). Search on the internet for a battery to suit your remote (e.g.: “Pronto TSU9400 battery”) to find a battery supplier and buy one.
To access the battery:
RU960 / TSU3500 – hold down the arrow tab on the back and slide the cover off towards the top.
TSU9400 – the battery cover on the back is secured by a Torx T 0.5 screw.
S70 – push the tab towards the top and lift off.
Q50 – prise out the 2 rubber pads near the bottom edge of the back, remove the 2 Philips screws and lift the cover off.
Fit the new battery, replace the cover and charge the remote before using it again.
Battery replacement is not difficult to do, but dCS cannot take responsibility if you have any difficulty.