Hi, here again with the janky, cheapo E-surf build.
I’m again considering different motors and batteries to buy, and have come here for a bit of insight. Right now my plan is to buy 4 Turnigy 20,000mAh Li-Po batteries, and wire them in 2x2 for around 44V, with 40,000mAh of charge. First of all, is this viable? I’d like smaller batteries wired together so I can use them in other projects aswell, therefore I’m not a big fan of a huge Li-Ion pack.
But the real question I have is about the motors. I’m looking at either a Flipsky 65161 120KV 6000W with the prop, or the huge 85135 140KV 12000W one. Any recommendations? Note that a surfboard will require much more thrust than an E-foil.
Is there a formula or a calculator online to estimate the thrust on one of these badboys running at 44V, maybe 120A?