Re: [electricboats] Converting an Allmand Sail 31 to electric

I would consider several smaller inverters that are dedicated to different loads on your boat rather than one big inverter for everything. For example,  I have a 3000W high end Outback inverter for my house power and two dedicated cheap 3000W  inverters for my aft and forward A/C units.  This distributes the loads so that none of the inverters have to work that hard and you don't have to worry about tripping the breaker if the AC is running while you're making coffee and you put something in the microwave. And,  if an inverter fails you have plenty of backup because any one of those inverters could run the whole boat in a pinch with careful load management. You can get a good, no frills pure sine 3000 Watt inverter these days for about $300 bucks. With multiple smaller inverters, you don't have all your eggs in one basket. 

Admittedly my system is a little extreme but you get the point. 

Capt. Carter

www.shipofimagination.com

On Wednesday, October 5, 2022 at 10:12:07 AM EDT, elagusfil128@gmail.com <elagusfil128@gmail.com> wrote:

Hello! I have an Allmand Sail 31 sailboat and I removed its motor to convert it to electric. I would like to share my ideas and listen to recommendations from people with more experience before making purchases.

 

Engine:

I want to buy the 10KW or the 12KW thunderstruck-ev.com motor kit, I would like to know what you recommend.

 

When I removed the old motor I took out everything it had, including the cooler and the pump, the truth is that everything was in poor condition.

Now that I am going to buy the electric motor, if I choose the solution with liquid cooling I would have to buy the entire cooling system, and if I choose the air-cooled version it is not much of a problem because I have 2 new blowers that I was thinking of installing for an air conditioning but that idea was cancelled.

 

Does anyone have the 10KW air cooled motor? Have any problem?

 

I also plan to buy the support with the 2:1 reduction (although I don't know why when I go to buy it says 2.67:1?)

 

Batteries:

My idea is to build a battery bank with 16 Lifepo4 320 AH batteries and a 250A BMS. Read experiences about it?

 

Charger:

5000W Solar Inverter (already purchased)

It is this: https://www.aliexpress.us/item/3256803396031941.html

 

12V:

My idea is to have a common 12V battery and a DC-DC Converter that I already bought, this is the 60A version:

https://www.aliexpress.us/item/2251832330206798.html

 

 

Thank you very much for your support, and I will tell you about the whole process here and also on my YouTube channel that I started to allocate to this project. Cheers!

 

https://www.youtube.com/watch?v=vkq-EcKeYjA&t=112s

 

I appreciate your subscription and like, which helps with the YouTube algorithm.