AGM Batteries

[JimInPB]

... It seems crazy, but I use the battery capacity to run a laptop and 2 additional monitors when needed. (detachable to the aft bulkhead by the dinette) I like to take the boat out for 3-4 days when I can, and unfortunately need to keep up with hellish work obligations periodically to spare that kind of time away from the office. ...

If you don't already have solar, you may want to add it. If you do already have solar, you may want to assess if it is a big enough system or not.