DevCommunities
Post #7584, on Dec 25, 2025 in TG
Web Standards Are a Mess: IEEE Publication Measures Battery in Watts
Description
A screenshot of a comment thread on a dark-themed forum/platform. User @Peterthethinker posted '1 hour ago': 'The web is an inaccessible mess of standards... Too many poindexter's.. To much FAAAANG. Needs more IEEE..' User @chupasaurus replied '55 minutes ago': '@Peterthethinker Today I read IEEE publication with battery capacity measured in Watts. There is no escape.' @Peterthethinker responds '24 minutes ago' with a shocked emoji face: 'wth..' and tags @chupasaurus. The thread humorously subverts the original poster's reverence for IEEE standards by revealing that even IEEE publications contain basic unit errors (battery capacity should be measured in Watt-hours or Amp-hours, not Watts)
Use J and K for navigation
Comments
16Comment deleted
'We need more IEEE standards!' IEEE: *measures battery capacity in Watts* -- The standards body standardized getting the units wrong
Watt-hours are totally better than mAh. Sometimes there is multiple batteries (usually in laptops) connected in series, which creates higher voltage, but same current, same capacity in mAh. But the energy stored is voltage*current capacity, which is the definition of watt-hours. Because of this, the capacity of laptop batteries usually written in watt-hours. Also some batteries have slightly higher or much lower voltages due to their chemistry, and comparing mAh ignores that as well. Comment deleted
I introduce to you a novel concept, a new miracle in engineering field, really. It's called Joule. Comment deleted
Also can be called watt-second Comment deleted
truly cursed Comment deleted
> the energy is voltage*current That would be power, not energy. Exactly watt. To get watt-hour (...energy), you have to, well, multiply by hour. Comment deleted
That's true, I know it, but explaining that would be too much unnecessary text, and to simplify everything, by current I meant current capacity, in Ah, since that's what you usually know about batteries Comment deleted
you literally don't need to explain it, you can jut use the correct word Comment deleted
there's enough misinformation already Comment deleted
Alright, changed the message Comment deleted
thanks! Comment deleted
Literally this, why at all we use mAh when watt hours are so much more convenient and easy to understand Comment deleted
Marketing. 😔 Comment deleted
Because it is electric charge by definition, not amount of energy. Most of batteries have nearly constant voltages so it's a multiplier away from Wh Comment deleted
I think they meant watt hours, since you can't express the battery capacity in just watts Comment deleted
I think it could have been fukken legendary if Kazakhstan used hp*hours Comment deleted