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Review on ⚓️ Blue Sea Systems - Battery Switch ON/Off AFD: Enhance Control and Safety for Your Marine Electrical System by Eric Young

Revainrating 5 out of 5

Battery leakage problem solved, flush mounted safely

The switch was easy to install, feels very solid and I expect it to last a long time. I'm sure it's a bit excessive for my only marine battery, but I'm willing to pay an extra twenty bucks for peace of mind. This switch has a very high ampere rating threshold when starting the engine, and its size and weight mean I won't be replacing it any time soon. The flush mount option works great and maintains a professional look. As for my particular setup: I have a standard marine battery powered by a 120hp Yamaha outboard. For the last couple of seasons I've had a battery drain issue when I haven't used the boat for a few weeks. Physically disconnecting the battery terminals after using the boat solved the problem, but it wasn't the most convenient solution for the rest of the family. The issue suggests greater battery drain than it should be, but it's not worth my time or money trying to figure out which device is drawing power even when the key is off. So the solution was to get a simple switch that does exactly the same thing as physically disconnecting from the terminals. So far this has worked great; The battery did not die after leaving the boat for a month. I originally intended to install it under the dash but ended up taking the easier route and installing it closer to the battery in one of the compartments under the back seat. I used a 3 5/8" hole saw to cut through the plastic side of the seat about halfway up from the floor. I then inserted the switch into the hole, marked four screw locations, drilled four small holes, and mounted the switch using four nuts and bolts .NOTE.I needed the following additional materials to install the switch: 1. 3 5/8" hole saw (not required unless using the flush mount and you can use another tool as well) 2. Four screws and Nuts (at least 3" long. 5" I don't remember the diameter) 3. Wire and crimp connectors to pull the wire from the battery to where I installed the switch. Remember you only need to extend the positive (+) lead to the switch )

Pros
  • All right!
Cons
  • 0