Skytec ST140 Manuel D'instructions page 8

lnstall the battery into the remote control
Open battery compartment cover of the remote control,as shown by the following diagram.
lnsert two UM-4 or AAA batteries or batteries of same kind and ensure consistence between,
battery polarity and its marking. Close the cover as per the opposite direction of its opening.
Caution:
 Don't use any battery as mixed in new/old or with the different brands.
 Don't charge the battery or short connect it.
 Don't remove the battery or heat and burn it.
 Once the liquid is leaked out from the battery, please clean the Battery compartment
prior to install the new battery.
 Once the machine is unable to be operated although the remote control is so closely,
Please replace the new battery.
 Don't let the strong light is directly on the remote control or the ultra-red head on the
panel for connection so as to avoid any inference to the remote signal.