Hello, what's your TB47/TB48 total battery capacity (shown in DJI Go battery screen) after 15-20 charges ? I just did battery calibration (run down the battery from 100% until shutdown, then charging again to 100%) but even after this procedure the total capacity is just about 4000mAH / TB47 and 5300mAH/ TB48. Is it normal to lose 400-500mAH of total capacity by 15-20 charge cycles ??? What's the experience with your batteries ?