Ooooh, I completely missed the part about the charging circuit.
So it accepts up to 15V. Is it the TP5100 BlueSwordM mentioned earlier or something like it?
That would mean there’s no QC or USB PD or anything fancy like that?
If I understood correctly you can plug it in to a 5V USB power and it will take that but if you hook it up to a 12V solar panel it will happily accept that as well?
Hmm… How is the charging circuit integrated to the rest of the flashlight?
I’m just wondering if the lantern is moddable in that regard?
With previous talk about configurable charging rate my guess is it wouldn’t be?
DBSAR, regarding the cable. 12-15 feet is ~3.65-4.57m. Not that far off from 5m
24AWG is pretty standard with decent quality charging cables.
But 20AWG is certainly doable with Type C and legacy Type C cables. I think I’ve even seen 18AWG at some point.
These just won’t be cheap so I’m not sure it would be worth it.
As if I did the math correctly, there’s 2.5x more copper in 20AWG than there is in 24AWG.
That’s a bit of a jump in terms of cost. And copper is expensive these days.
I’ll just dump some voltage drop values here for 5 meter cables with one pair of copper conductors
20AWG and 5V1.0A = 6.66% drop or 4.67V at the end
20AWG and 5V1.5A = 9.99% drop or 4.5V at the end
24AWG and 5V1.0A = 16.84% drop or 4.16V at the end
24AWG and 5V1.5A = 25.27% drop or 3.74V at the end
Even if we drop the length down to 3.5 meters it would still perform rather poorly in my opinion with
24AWG and 5V1.0A = 11.79% drop or 4.41V at the end
24AWG and 5V1.5A = 17.69% drop or 4.12V at the end
I’d say a 2 meter cable would be a good compromise
24AWG and 5V1.0A = 6.74% drop or 4.66V at the end
24AWG and 5V1.5A = 10.11% drop or 4.49V at the end
Or 2.5m. Something in that ball park.