USER GUIDE
Page 4
Connect your Scorpion Backup Guard II
Connect the DC 5V Output connector to an empty socket on the receiver. If all the sockets are being used,
use a Y-harness wire to connect to any servo output socket.
Warning:
DO NOT plug the Scorpion Backup Guard II’s DC 5V Output connector into the S-Bus channel port. This will
drain the Backup Guard II battery without charging.
DO NOT plug the Scorpion Backup Guard II’s DC 5V Output connector to any socket that is NOT recommend
by receiver or gyro manufacturer (e.g, telemetry). Please refer to your receiver and gyro instruction manual
for details.
Using your Scorpion Backup Guard II
Charge up the 2S Li-Po battery using proper Li-Po charger*. Connect the 2S Li-Po battery to the JST-XHR
connector on the Scorpion Backup Guard II. Check and make sure the DC 5V Output connector is securely
connected to the receiver/gyro.
* Although you can connect the 2S Li-Po battery to the Scorpion Backup Guard II and let the main battery
charge it when operating, charging time maybe lengthy and depends on the status on the 2S Li-Po battery.
The charging rate is 0.5A.
Power-up sequence:
Main Battery ON >> Scorpion Backup Guard II ON
Power-down sequence:
Scorpion Backup Guard II OFF >> Main Battery OFF
Power off Scorpion Backup Guard II first then you can power off the BEC system or ESC after flight. Always
turn Scorpion Backup Guard II ON last, and turn OFF first, to identify whether your BEC is functioning prop-
erly.
Maintenance for your Scorpion Backup Guard II
Because of the DC 5V is a one-way output, whenever the main power unit output voltage is higher than DC
5.5V, the Scorpion Backup Guard II will not be drained by the power consumption of the radio system.
For maintenance, perform routine checks on the balance and health of the 2S Li-Po battery.
If you are not planning to use the Scorpion Backup Guard II for a long period of time, please disconnect the
2S Li-Po battery and safe keeping the battery’s charge level at 50% charged. Remember to charge up the 2S
Li-Po battery to 8.4v before you use it.
