One of my TB48 had a flaky cell it showed up in my Airdata report . I kept get message that drone was throtlling down speed for safety. I put in one the Airdata said was fine and no issues. Not sure how you refresh battery (or if you can)
I sent a brand new TB47 back to DJI for evaluation because it gave a “Battery Damaged” Error in Go on two of its first flights. The log showed deviations of over 200mV. DJI hasn’t yet completed their assessment.