According to Henry Xu the voltage difference is within the tolerance of the charger (±0.03V). I miscalculated the difference by a decimal place. :zipper_mouth_face: It is easy to do when expecting 4.20V resting voltage after charging!
It is nice that the display is updating more often.
The problem is that 1000uf is a drop in the proverbial bucket compared to what is actually needed in a V1 or V2 charger. The thumbnail calcuation for the V2.0 version of the charger suggested 100,000uf at 16v would be required. The current is a little lower on the V2.1 charger, but the basic problem is the same. IF you are concerned just buy a larger AC adapter. You can get a 6-8 amp unit on eBay for under $15 in the US. I have a V2.0, and bought a 6 amp adapter.
Yes, the charge capacity and the discharge capacity measurements are now only about 10% different. Given that the charging process is not 100%
efficient, that squares with reality reasonably well. The real question is can the AC adapter sustain the short term current requirements. The 3 amp
AC adapter suffered from substantial voltage sag because it could not.