Flex Duo Operator Manual
August 2021
Page 10
2.8 Changing Batteries
Changing transmitter batteries (“AA” alkaline battery x 2) by unscrewing the battery cover located on the backside
of the transmitter. During battery installation make sure the batteries are installed correctly, with “+” to “+” charge
and “-” to “-” charge. Also make sure the screw is tightened after battery installation to avoid water, moisture, dirt,
grease, and other liquid penetration.
Figure 2-1
2.9 Battery Charger (Optional)
The Flex Duo charger does not come standard with Flex Duo systems or spare transmitters.
WARNING
Do not attempt to charge non-rechargeable battery packs in the charger.
Do not use rechargeable lithium ion batteries, as they will damage both the transmitter and the charging
station.
Avoid charging partially discharged rechargeable batteries to help prolong battery life cycle.
Do not charge batteries in a hazardous environment.
Do not attempt to charge a damaged battery.
Do not attempt to use a battery that is leaking, swollen or corroded.
Do not short the charger.
