Excellent produc and 5 stars
Not properly customizable really for modes. Awful greedy seller's communication as always, opened a claim. Usable with some hoops jumping but not as convenient as it should have been. They should redesign that it will go 0.1v step up/down everywhere. On 3A it's noisy intermittently (available only up to 49v) which shouldn't also be there, fan should just stay on on 3A. Usage application — to charge 48v-58v li- batteries slightly less. Constantin vorobyov
Learn to accept monetary responsibility for lack of quality. You just ignored what I said and got punished (very slightly). be honest first. I am sure you'll continue to insist that you charger is perfect and it's us the problem, we "moral quality of buyer" disgraced poor hardworking and honest (lol) chinese. Now they make theirself a victim in messages and blocked me, so upset that few bucks were striped from them (something they will never do it here in freewill). Overall here is abysmally low seller culture, targeting poorer economies.