I am very disappointed in the DT71 Digital Tweezers. I cannot recharge the built-in battery. I plug in the adapter, and a USB-C plug and the red LED comes on, but it is drawing virtually no current and never charges. When I received the DT71, the battery seemed to be charged, and it worked properly for many days. Two days ago, it seemed to be dead, so I plugged it in to charge. No luck charging it.