Hello, my friend, <br>I consulted the factory, and he asked to take a video <br>1. Prepare 2 batteries, 1 other charging equipment, 1 Modem, 1 charging cable <br>2. Connect one end of the charging cable to the power supply and the other end Into other charging equipment. The purpose is to prove that there is no problem with the charging cable. <br>3. Put a battery into the "Modem", connect it to the charging cable, and charge it. <br>4. Replace the battery and connect the charging cable again, and the charging <br>video cannot be interrupted. <br>Thank you, if it is indeed a quality problem, I will send you a new one
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