Originally Posted by sombreastre
Maybe they didn't use that standard.
After all, I don't know who came up with that (amazon?), but 30 minutes a day is hardly the time a dedicated reader usually reads. It's likely more about the casual before-bed/commuting-to-work reader (and they did say somewhere that they built the kobo for the book lover if I'm not mistaken)
Who came up with the 30 mins is irrelevant. Every manufacturer uses it.
The point is that if Kobo uses different standards they should make it clear in their product statements.
Using the 55 hours and 60 hours based on 30 mins per day, the Kobo would last for 3.7 to 4 months on one charge. A really, really great selling point wouldn't you think?
Telling people it only lasts 1 month and forget to mention that is based on 2 hours per day, would be an utterly senseless move!
Both claims might still be true if we take, say, 2 hours of daily usage for 40 days without light and wifi. It'd still last more than 55 hours and more than a month.
That would indeed make the claim of 55 hours with light on credible, but it would still make the first claim a senseless one, marketing wise.
So Lets not discuss further about this, but wait and see what Kobo's explanation is.