Battery Monitor


What the heck is a BMK?  How does it work?  Why is it so important to have one?  Right before we moved aboard Curiosity we shot this video.  We’re no experts by any stretch of the imagination, but we did our best to show you our BMK in use and answer those questions.

In our RV we had the magnum but decided to go with this very affordable Xantrex link pro for the sailboat.  Here are a few specs:

  • Link lite Battery monitor
  • Displays time remaining
  • Communication/expansion port
  • Stores a wide range of history events in internal memory
  • Advanced programmable alarm Relay

Want to see the link pro in action?  Check out this video:



  1. Mark Russell

    Watching your video on recharging your batteries I found it interesting and informative. One of the things you mentioned was not liking the current generator set up due to weight and placement in the boat. The weight puts the the boat gives it a bit of a list which is not a good thing. I have what I think is a good idea and a bad idea at the same time. The bad part of it has to do with the fuel required to run it. Honda makes generators that are VERY efficient. I don’t know all of the math but I will tell you what I do know.

    First, there are two models worth exploring. The 2200 watt and the 3,000 watt. The 2200 watt will run for 3 hours at full load and 8 hours on 1/4 load. The 3,000 watt will run 20 at 1/4 load and 7 hours at rated load on 3.5 gallons of fuel. One of the things that is cool about these generators is that you can link them together with a kit that doubles the watts. The other cool thing about these generators is they are both VERY quiet about 57 db at rated load. The weight is low for the work they can do. The 3,000 watt is 150 pounds and the smaller ones are 50 pounds. There is a 7,000 watt version that can also be linked with another unit again doubling the power output. This one also supplies 240 volts as well. It is considerably heavier at 270 pounds.

    The big draw back for either of these is the fuel. They run on gasoline which means that you would need another fuel source which is space which is… the list never ends. But with the fuel economy and depending on how often you need to run them and distance between ports of call 10 gallons of gas might last you quite a while. The 2200 watt units are really small and take up a very small foot print and two of them together making 4,000 watts is quite a bit of power for a small unit. Cannot run a lot at one time but.. that is part of small living off gird.. power management is key.

    Just some thoughts.

    Oh, and wind generators. My brother works for the power company in Wisconsin. They have a lot of wind power up there. According to him they are NOT efficient and not worth having. But, in the media and for the many that don’t know it “looks” good.

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