#507 Add amp hours (Ah) to the units.txt

Jason Whittier Tue 27 Jun

I would like to propose adding amp hours to electric charge in the units.txt. We recently ran into a need for this, and it would be good to have in the standard units file.

ampere hour, Ah; sec1*A1; 0.000277778

Matthew Giannini Tue 27 Jun

I just updated the Fantom units database to add this unit. The definition is actually like below. We already had the coulomb unit defined, and 1Ah is equal to 3600C.

 -- electric charge (sec1*A1)
 coulomb, C; sec1*A1
+ampere_hour, Ah; sec1*A1; 3600

https://en.wikipedia.org/wiki/Ampere_hour

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