Das Boot

Or a standard alternator. They'll typically kick out between 60 A and 110 A without you having to go outside the car market. And all but the most basic split charge units are more than capable of handling that and distributing it as needed. Diesel generators are a bit of a no-no at most moorings. If they're not banned (and often they are) nearby boaters will start kicking off as on a lovely summer's night even if they are silent, they'll start setting off the mandated CO alarms in peoples cabins.

You can use the domestic ones. However, the regulations are changing again, soon. The main benefit being - you can use a multi provider booster as opposed to being tied to one (e.g. rather than your reception being tied to 3, Vodafone or EE, the new regulations will allow the booster to receive all mobile phone provider signals). This was in response to last summer's consultation. https://www.ispreview.co.uk/index.php/2021/11/ofcom-uk-expands-the-range-of-indoor-mobile-signal-boosters.html

The law changed. See here: https://www.ofcom.org.uk/about-ofcom/latest/features-and-news/mobile-phone-repeaters

I live on a boat and own wellies. I rarely cruise. The only time I've used said wellies in the last 12 years was last winter. The flood level was its highest for 15 years and my high level gangway was 15cm under water. Didn't need a life jacket. Used the handrail. Most of my neighbours are similarly prepared. Because a lot of people on the Nene are used to the excessive flooding that's been caused by allowing building on flood plains and meadows and the EA's (justifiable IMO) actions in preventing any further flood damage to historic Wansford. Billing is sadly very flood prone. Also a lovely place for people who want to get away from urban sprawls and use their static caravans or boats. I hope the problem can be resolved in some way and they can continue to enjoy it.

That's pretty much how I've done it. Great pic and pretty self explanatory. Extra fenders on the stern of the tower and prow of the towed vessel tend to avert most problems too. It's also simple to unhitch and rehitch when going through locks.

So on a 120 Ah wet leisure battery you get 6 hours or so use before voltage drop creeps in - that's before any resistive losses from cable runs? How are you powering this?