diy solar

diy solar

Recent content by keimor85

  1. K

    Sailboat conversion from 14 hp Diesel to 10 Kw 48V electric motor

    I have a new question. In several videos that I have watched lately I noticed that they are using a two pole breaker (one pole positive and the other pole negative) between the solar panels and the controller. I currently just have a single pole breaker on the positive wire. Should I be concerned?
  2. K

    Sailboat conversion from 14 hp Diesel to 10 Kw 48V electric motor

    My final calculations showed that I was about 225 pounds lighter with the electric motor, batteries, panels, etc. She sits up about an inch higher in the stern because of this. I have been planning to put maybe 150lbs of lead in the bottom of the bilge but just never got to it. The weight in the...
  3. K

    Sailboat conversion from 14 hp Diesel to 10 Kw 48V electric motor

    Another update after 1 1/2 years everything is working great. I did add the second solar array of 4 60W panels so I now have 520W. I have taken the LiFePO4 batteries down to 20%DOD and everything works great. The Daley BMS is still working fine after 82 hours on the motor clock and many...
  4. K

    Sailboat conversion from 14 hp Diesel to 10 Kw 48V electric motor

    Pete sorry for the late response. I haven't been on here for some time now. I started out looking at the cobbling together route but was quickly overwhelmed with all of the options and had little to no knowledge of what I was doing at that time. The electric yacht was a good all in one...
  5. K

    Mixed Ah LiFePO4 strings in parallel

    I want to setup a 48V system for a sailboat the has four 330Ah batteries in series 330Ah at 48V and parallel a second string of 200Ah LiFePO4 for a total of 550 Ah at 48V. I'm getting mixed responses from suppliers but saw a video from Will that said you can do this. I'm looking for find this...
  6. K

    Picking brains...help with Engine swap to electric...32ft Cabin Cruiser

    I converted my 30' 10,000 lb sailboat to electric 2 years ago and am thrilled with the results. I have a 10KW motor with 202Ah of LiFePO4 batteries. It will push the boat to 6.2kts (hull speed is 6.4) but thats using about 200 amps which means that I have only 1hr before I'm out of battery...
  7. K

    Sailboat conversion from 14 hp Diesel to 10 Kw 48V electric motor

    Just a quick update. After 3 months everything is working great. The 10Kw motor pushes the boat along fine with great torque right from the get go unlike a diesel or gas engine where you have to build up the rpm's to get into the good part of the torque curve. The 202Ah LiFePo4 battery is...
  8. K

    Sailboat conversion from 14 hp Diesel to 10 Kw 48V electric motor

    OK I understand the theory. So I would run the motor with the switch in the A+B position and if the BMS shuts off the motor will still run on the B connection correct? How do I detect that the BMS (A) has discounted?
  9. K

    Sailboat conversion from 14 hp Diesel to 10 Kw 48V electric motor

    Bubba thanks for the thumbs up. As far as regeneration I do get it in spurts but it is not enough to offset the amps needed to keep the contractor closed. I have a 2 bladed prop maybe with a 3 bladed prop it would work but I think that you really need a bigger boat with higher hull speed but...
  10. K

    Sailboat conversion from 14 hp Diesel to 10 Kw 48V electric motor

    I launched on May 5th with just 4 79Ah group 24 AGM batteries in series to provide 48 V. I already had three that were new last year so rather then delay my launch waiting for the 3.2V cells to arrive from China I bought the 4th battery. I waited to long to order my 3.2 cells from china. I was...
  11. K

    Sailboat conversion from 14 hp Diesel to 10 Kw 48V electric motor

    Thank you I'll look into them
  12. K

    Sailboat conversion from 14 hp Diesel to 10 Kw 48V electric motor

    J, Any info on the BMS that I should use on my application?
  13. K

    Sailboat conversion from 14 hp Diesel to 10 Kw 48V electric motor

    Fantastic, thanks for the help
  14. K

    Sailboat conversion from 14 hp Diesel to 10 Kw 48V electric motor

    Thanks for the quick response. I have a 48V 16S 3.2V 202Ah pack not a 12V. Is the Batrium, REC still the answer?
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