Dogtra RRD - Manual (Page 15)

PRECAUTIONS :
1) Charge the batteries indoors.
2) Do not charge near any flammable substances
or with the power on.
3) Keep the battery charger free of moisture.
4) Keep the battery charging receptacles on both
the transmitter and receiver free of dirt.
Should the battery charging receptacles
become wet, wipe them dry before charging.
5) Use only the battery charger included with
your launcher. Other chargers are not
compatible.
RECHARGING
THE BATTERIES
1) During frequent use, charge the transmitter
when the indicator light is blinking on and off
or the light does not come on when either the
Duck call sound button or Launcher button is
pressed.
2) Charge the receiver when the indicator light
does not come on when the Power ON/OFF
Button is turned on.
3) Fully charge the batteries for about 14 hours
once every month, even if the launcher is
being stored without use.
4) The battery comes fully charged from the
factory. However, since the battery can
gradually discharge during storage time, it is
recommended that you charge the battery for
about 14 hours before initial use.
WHEN TO CHARGE :