Word of warning: this may be my nerdiness talking.
I have two power banks right now, an older PowerCore Slim 5000 and a PowerCore 13000 C. The first has 3 LEDs to indicate the remaining charge, the second has 4. The amount if energy left per LED therefore is not the same between these products.
I think it would be nice to have some products, maybe in the + line, for which one LED always reflects a constant amount of energy across the line.
Smaller power banks would automatically have fewer LEDs, which makes sense as Anker may want to keep costs down for those products.
I got the name for it as well: PowerScale. Fits in with PowerCore, PowerIQ and SNAP singing “I’ve got the power”.