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Hi Don, There are two types of DC amp meters. The first runs all the power through a shunt that sends a signal to a dial separate from the shunt. These are permanent installations and are what power your amp meter in the battery or on your console. Also non-clamp multimeters, with a DC amp...

More thoughts: The DC amp meter will also usually have a volt meter. Measure the voltage of your battery during use. If the voltage drops significantly, it is your battery that is the problem. When I was using lead acid batteries I also had a resistance battery tester I got at an auto parts...

Don, Here are some suggestions for trouble shooting. 1. Get a DC clamp meter that measures DC current without unhooking any cables. These run about $50. Make sure it is for DC not AC. 2. With everything turned off, check to see if there are any currents leaving the batteries. This will...

The current draw on a 12V fridge/freezer depends on the size you want. I have a DOMETIC 35 liter unit and it draws only 3.2 amps. It has good insulation and runs only about 2 minutes out of 10. So, over 24 hrs. it may use only 15 AH of my battery.

Have you tried contacting NMI (Northwest Marine Industries) that is building your boat? I am sure they have all these technical specs since they set up the trailers for these boats as well.

Definitely go with the AGM for boat use. I have yet to find a "flooded" lead acid battery that does not leak a little in heavy seas. My first electric boat (29 years ago) had 12 flooded golf cart batteries, and I tried all kinds of tops/plugs. All of them ended up leaking to some degree, and...

I have two bow lines permanently attached to the forward cleat, one for each side, so I don't have to go forward every time I want to dock. I bring the lines back and hold them tight with a cam cleat just before the cockpit. The extra line is coiled and hung on a hook that hangs from the...

Here are my thoughts, though this is a topic where everyone has their strong opinion: 1) I prefer my dock lines to be about 35 ft for my 22ft cruiser since some marinas have longer finger piers and cleats are further apart. 2) Also the longer length means the extra can be used as a spring...

There is one issue with using Li batteries for starting that has not been mentioned. If you are using them for starting I assume that they are also being charged by an alternator on the motor. This is where it gets tricky. Most alternators are designed to charge lead batteries at a certain...

I Have now posted a picture on the rudders I added to my electric outboards to improve slow speed steering. (ALBUM - WATT NOW) [img]http://www.c-brats.com/modules.php?set_albumName=WATT-NOW&id=rudders&op=modload&name=gallery&file=index&include=view_photo.php

rudders

My two electric outboards have a fairly narrow shaft so I was able to "create" a rudder to put on each one for slow speed maneuvering. I took a 10" x 20" piece of 1/8" HDPE and formed it around a 1.5 inch pipe with a heat gun. I then rivetted the plastic around the motor shaft in a balanced...

We have a nice canopy from King Marine Canvas but find it impossible to snap it to the sides while in the boat. Does anyone have any tricks to attaching snaps from inside the cockpit?

Don, You also mentioned the cost of some of these products. Actually Lanocote is the least expensive. A 4 oz tub costs about $14 and lasts forever. I put on rubber gloves and warm the item with a heat gun, then rub some lanocote on the item. My tub is now 20 years old and I am only half way...

Here is part of the material safety data sheet for Boeshield. Looks pretty hazardous. · 2.1 Classification of the substance or mixture · Classification according to Regulation (EC) No 1272/2008 GHS02 flame Flam. Aerosol 2 H223-H229 Flammable aerosol. Pressurised container: May burst if...

Don, I looked up salt-away and all it does is dissolve different kinds of salt deposits, especially those that build up in hot engines. It does not protect against oxidation (rusting). Yes, the lanolin based protectants use the same stuff found in the high end hand creams. But, joking...

As a marine ecologist I like to use products that are not toxic or environmentally hazardous. Many of the corrosion inhibiting products are toxic and made from petroleum. Luckily there is a line of marine corrosion inhibitors that really work, have been around for almost a century, and are...

I agree with Dr. Bob. Attaching the strap to the towing eye could create a real emergency if you are out on the water and need to take the top down fast. Leaning over the stern to unhook the strap would be difficult in a heavy sea. If you are uncomfortable drilling holes in the top in case...

I would suggest attaching a large carabiner or clip on the end and then clip the straps to the end of the handrail on the boat top. That way the strap will not be in the way of getting in and out. That is what I did on my earlier boats (26' St Pierre Dories). As you probably know, the custom...