Cara membuat GERINDA BATERAI 20Volt (9800Rpm) dari GERINDA LISTRIK

How to turn an electric grinder into a 20-volt, 9800-rpm battery grinder, how to turn an angle grinder into a cordless grinder, and a battery grinder review. Let's follow the instructions. With the motor I bought, type 795, 12-volt, 16,000rpm https://s.lazada.co.id/s.2HLgR And I've rewound it with good copper. #batterygrinder #batterygrinderreview #renovari