back to 2025.05.16 test five Powkey s60 medium wallets

1 testing each panel with the Elejoy:


The first order of business was to test each of the five wallets using my Elejoy solar tester. "A" is the first
wallet I bought last year, B,C,D,E are the four I bought recently. I was expecting identical performance from
all five, but looking at the measurements now it appears that the new panels all test identically, but the first
one seems to test a little lower. This may be due to the sun not fully being out yet when I tested, or something
else influenced it. I'll do some retesting later to verify this.

With little clouds racing through the sky on this windy day I didn't waste time trying to study the sky, and
just proceeded when the light got bright on the ground. For now I'll assume that something affected the first
panel's readings and will just summarize the four newer panels.

Vmpp ranged slightly from 19.8 to 20.0 volts. Impp was very solid at almost exactly 2.88 amps on every wallet.
Voc was also pretty consistent, between 23.2 and 23.3 volts. Pmax ranged between 57.0 and 57.8 watts.

The first wallet showed 49.5 watts, with expected drops in all other categories, which strongly suggets exposure
to less sunlight. The other variable was this one wallet was using my improved panel cable, though if this was
having any effect I would expect an improvement in the numbers, not a loss.

A 2025.05.16 13.24.48	B 2025.05.16 13.21.12	C 2025.05.16 13.22.18	D 2025.05.16 13.23.04	E 2025.05.16 13.23.52

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