I bought one of these ESCs, but before powering up I took it all apart and checked the assembly.
The PCB itself looks fine, which is to be expected if this is a clone of the Hobbywing design, but the assembly is terrible. I spent a few hours tidying up bits, putting components back on the pcb (one of the 0402 resistors was on sideways!) and cleaning the flux off to try and improve it.
The funny part is that on my one they have scrubbed the markings off a couple of the ICs, so are they worried that people are going to copy this copy??!
Honestly is it worth it? If it works, probably. If it doesn't you'd have been better off buying a genuine one rather than fixing it (unless you have experience with SMT rework). Either way without the extra work done on it, I doubt it is going to be the most reliable bit of electronics, one hard impact could potentially dislodge a component.
Having said all that I'm sure lots of people are using them without any problems.
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