> Watthours is more important than amp hours
Although that is completely true, pretty much all discussion, speccing, and marketing of batteries and power banks is done in Ah. So the article working in that unit is logical and consistent.
> Watthours is more important than amp hours
Although that is completely true, pretty much all discussion, speccing, and marketing of batteries and power banks is done in Ah. So the article working in that unit is logical and consistent.
The bit that annoys me always (and what makes Ah a meaningless measurement for power banks) is whether the amp-hours rating is just the internal batteries' spec summed together, or is it as measured at the 5V outlet? Huge difference!
I would assume it’s whichever gives the highest number which is usually going to be the internal voltage.
For instance I have a 20000mAh power bank which also has a 74Wh capacity printed on, a conversion factor of 3.7V matching li-ion chemistry.
Not to mention with PD neither the neither input not output voltages are limited to 5V.