Forum Discussion
jharrell
Nov 19, 2016Explorer
I am fond of Blue Sea, its all marine grade and used quite a bit in Rv's for high amperage manual disconnect switches.
They have Automatic Charge Relays with some decent intelligence for auto connect based on charge voltage on either terminal with remote switch override and simple battery connect relays, both 500 Amps continuous. Pricy but you should never have to replace:
https://www.bluesea.com/products/7622/ML-ACR_Automatic_Charging_Relay_with_Manual_Control_-_12V_DC_500A
https://www.bluesea.com/products/7700/ML-RBS_Remote_Battery_Switch_with_Manual_Control_-_12V_DC_500A
They have Automatic Charge Relays with some decent intelligence for auto connect based on charge voltage on either terminal with remote switch override and simple battery connect relays, both 500 Amps continuous. Pricy but you should never have to replace:
https://www.bluesea.com/products/7622/ML-ACR_Automatic_Charging_Relay_with_Manual_Control_-_12V_DC_500A
https://www.bluesea.com/products/7700/ML-RBS_Remote_Battery_Switch_with_Manual_Control_-_12V_DC_500A
About Technical Issues
Having RV issues? Connect with others who have been in your shoes.24,343 PostsLatest Activity: Dec 17, 2025