Hi guys, I'm new here and kind of new to diy battery builds. I'll give you a little background to my project so to paint a proper picture.
I bought a sailboat in the middle of a refit. The previous owner scraped the deisel engine to go electric. He got a far as purchasing the motor and controller as well as a few other things related to the boat before needing to sell. Here I come into the picture oblivious but eager to learn and plop down some cash and realize there is a lot to learn.
The drive motor is 72v 32kw. Oubre worked out how to charge the batteries. I should say I sources all of the components and still fighting out whether they all will play nicely together.
I purchased lithium battery cells from battery hookup. The plan is to build a 72v 200ah battery as directed by the supplier of the motor. I have evening worked out on how I want to configure the packs but I'm stumped on how to size the bms. I know it's going to be a 20s but the amperage. That's the part I don't have a clue. Do you size it based on the charging parameters of the battery or the draw the motor will have.
I'm sure someone out there will have an answer for me that I can understand.
The batteries are being delivered today so I'll be busy testing and sorting for the next little while. Pretty excited.
I bought a sailboat in the middle of a refit. The previous owner scraped the deisel engine to go electric. He got a far as purchasing the motor and controller as well as a few other things related to the boat before needing to sell. Here I come into the picture oblivious but eager to learn and plop down some cash and realize there is a lot to learn.
The drive motor is 72v 32kw. Oubre worked out how to charge the batteries. I should say I sources all of the components and still fighting out whether they all will play nicely together.
I purchased lithium battery cells from battery hookup. The plan is to build a 72v 200ah battery as directed by the supplier of the motor. I have evening worked out on how I want to configure the packs but I'm stumped on how to size the bms. I know it's going to be a 20s but the amperage. That's the part I don't have a clue. Do you size it based on the charging parameters of the battery or the draw the motor will have.
I'm sure someone out there will have an answer for me that I can understand.
The batteries are being delivered today so I'll be busy testing and sorting for the next little while. Pretty excited.