1 x 3S 20A Protection Board. The successful start of the drill requires three 10C-20C power battery, or six 5C-10C power battery(ordinary 18650 can not start the drill!). Do not use nickel plates! Enhanced version, applicable to electric drills/drill motor with starting current below 60A, power below 100W, resistive Load below 250W(with anti-interference function).
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