The Mighty Mule Battery Heater (FM316) ensures your gate opener battery stays warm and reliable through freezing temperatures, delivering consistent performance even when the mercury dips below 32°F. Designed for cold climate gate opener systems, this 12 V battery heater installs easily and maintains an optimal temperature to protect against power loss.
- Recommended for areas with extended periods below 32 °F, safeguarding your gate opener against cold-weather failures
- Wires directly into the gate opener control board for a safe, straightforward installation you can complete yourself
- Automatically maintains a constant temperature around the battery, preventing performance dips in chilly conditions
- Attaches right to the 12 V battery to keep it at the ideal operating temperature and preserve its charge
- Not compatible with solar-powered gate opener systems—designed specifically for battery-only setups
