Review on 🧲 Magnetic Miniature Circuit Isolator: Compact and Efficient Disconnect Solution by Nick Cleary

This protects your solar controller from damage by turning off the solar panel until the battery is connected. Whenever the battery is disconnected (reverse operation) this switch allows the solar panels to be disconnected first, preventing damage to the controller. All solar controllers warn against this costly mistake, ie. that the battery must always be connected first BEFORE the solar modules can feed their energy into the controller.