I went ahead and purchased one as well. I have wanted to do a small project for camping / kayaking for a while. I figure this could work for me. Plus, I'm in Ohio so they got me with the Ohio flag on their product (terrible reason to buy something, but here I am).
I have 16x 26650 3200 mAh LiFePo4 cells coming. I plan to make a 4S4P 12.8 Ah battery pack to put in a waterproof container and throw some cigarette outlets in there for running a fan, charging cell phone, etc.
I will probably get a small roll out solar panel to go with it. Something like 20-30W. I haven't researched that yet. I've never seriously looked at them actually. Do they make them with charge controllers integrated? Or would I have to buy a small one? Talking to myself lol.
Also, I think it would be nice to have a shunt instead of just a volt readout. I was looking at this one:
https://www.aliexpress.com/item/329...21f5cb7654d21816818472346031f&ck=in_edm_other
Any thoughts on that model? Any others I should be considering for this size / scope / price range?
The cells have a max recommended 30 sec pulse discharge at 13A each, so it will be 52A for the 4P pack. However, on the spec sheet, it says they have a 28A pulse discharge under the maximum operating conditions for 112A in 4P.
If I rig it up with "separate port" wiring (thanks
@HRTKD) I can have 100A discharge, 60A charge circuits. I figure I'll probably rig it up with the "common port" configuration for simplicity. I'm going to try to fit it in a small box, I don't expect to use it at high demand, and I don't think I really want to push the maximum operating conditions of the cells anyways. This will keep the cells limited to 15A each which stresses them enough I would think from my (incredibly) limited experience. This is all assuming the BMS works as advertised.
I will update as I think on the project and start tinkering with it. Should that go in a different thread? Then I can bounce back here with BMS results / thoughts?