Well, older Kindles all used 500 mA max, PW5 is I think the first Kindle eInk devices that bumps that to 2A (as if was also definitely the first with USB-C connector).
Quote:
Originally Posted by Sirtel
(by your standards, most of my ereaders have probably had an appalling battery life, but nothing out of the ordinary for me).
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My e-reader ownership history looks like this: Kindle 3 (aka Kindle Keyboard) > Kindle PW1 > Kindle PW3 > 3x Kindle PW5.
I still have that PW1, my father "uses" it (like 4 times a year
).
All of those had ok battery life and I never managed to discharge any of them in less than 20 days, and I think most of them averaged minimum of ~23-25 hours of reading.
If I used it at least 4 days a week (that is my average for most of the year) the average was somewhere around 30-35 days.
PW5 is significantly better than all my previous Kindle but that is probably not that surprising since it has the biggest battery capacity since Kindle 3 days while also having more power efficient processor and now having that super special "deep sleep" state.
This Kobo Libra 2 battery history looks like this : 7 days, 10 days, 16 days and most recently 21 days. I been using it less often since the middle of January (I read last 2 books on my Kindle, and overall have been reading less and watching TV shows more) . Number of of days is insignificant by itself... I still haven't managed to come close to reading more that 550 screens/pages on one charge. My 11 year old Kindle PW1 lasts longer than that...
Battery life is only one of the things that I dislike on this Kobo device. Availability, quality and bulkyness
of 3rd party cases (no way I would ever pay 40€ for the official sleep case, I bought a 3rd parry "origami style" one for 11€) is another letdown. It can even be reliably used to wake up and put the device to sleep.
Using microSD card as internal storage is also something that I dislike and it is bound to severely limit the longevity of the device. And also Kobo soldering battery wires directly to the motherboard is also disgusting move.