[petrovich]

I'm starting to get disappointed in my Boyue T62D.

1)It seem to drop "sleep on timeout" setting, going to sleep on timeout first several times after reboot, but then forgetting about it completely till the next reboot.

2)Being not in sleep, it drains the battery like a hungry beast, dropping a percent once in, say, half an hour at start, but rather quickly changing it to something like a percent in 10 minutes. I don't mention page turns intentionally, it doesn't seem to be a contributor –– at least not the major one.

3)It does so even being "sent to sleep" manually, by a single press of the power button –– looks like it just turns the display off, but the battery continues to drain off, and next time when I "wake it up", the power drop is the same as if it was just left in a non–sleep state.

4)I've checked the battery usage, it shows about 43 hours on a single charge –– less than two days, and indeed almost linearly, without any horizontal intervals for nights, when I left it in this pseudo–sleep mode. No front-light except maybe 10 minutes a day at eve. The battery usage says "Display 100%" –– thus no other consumers are reported.

The whole miracle of the first e-ink readers was that power was wasted only on page turns, just to redraw the picture. Now I've got a e–ink guy with a battery lasts slightly longer than a laptop one. You can leave it on your desk, go away, come back –– oops, the clock still shows the old time, so there is no redraw, right? –– but wow, the battery dropped another several percents.

My first guess would be that it is just e-ink Android's feature –– but no, NST also runs Android, though an older version. And the battery was lasting for several days, typically about a week, with rather intensive reading and front–light usage.