NFJ-7X vs NFJ-5x, Charging Performance Video .. as requested & agreed. Foremost is performing with lower quality than expected. With 5A cable, by now broken, the charging rates were higher & much better, at least in the recent month .. then the power bank suddenly began performing ss it does; meanwhile older NFJ-5X is still performing well after more than two years of continuous & extensive use .. as I live outside & the 99% of the charging of my tablet is done through the power bank(s) itself.