Maypole Automatic Dual Charge Relay - 15A (2881)

Self-switching voltage sensor relay

• Able to switch current continuously when available from car's alternator/battery
• Provides power for refrigerator and charges auxiliary battery

The big problem with all this is using it all without draining your vehicles batteryWith the 15A dual charge relay switch from Maypole. The 12v self-switching voltage sensor relay allows you to not only power your caravan’s fridge, but it will also keep your auxiliary battery charged, so you can be sure that it is ready for use anytime without doing any damage to your vehicles battery.