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Old 07-11-2017, 09:49 PM   #19
imkh
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Posts: 31
Karma: 101916
Join Date: Nov 2013
Device: Kobo Aura HD
Quote:
Originally Posted by Spinnenmonat View Post
Something strange.

My Kobo Aura One works well these days. The battery wasn't discharged in the sleep mode like what happened on the Saturday. I keep a watch on the battery when reading, the percentage of the battery disminished gradually and normally. But something very strange happened twice, yesterday and today. The battery was 68% or 67% and suddenly (I did nothing special, I checked the battery after reading several minutes) went to 52%. Then it was normal again. Today the battery was on 42% and suddenly went to 31%. It seems to be normal again.

Anybody experienced that?
Yes, I've had a KA1 since last October and just recently started to think a charge maybe wasn't lasting as long. Checked over 3 discharges from 100% to 10% (when the reader insists you recharge) and those sudden drops happened every time. Twice each cycle it dropped about 12-15% while just reading. I'm suspecting its a battery calibration issue as it happened during a period of reading with no other activity, so a whole cycle is needed for comparison.

Anyway it looks like I get ~11 hours reading from 100% to 10% (90% as this is the actual time between recharging- ~12hrs if it was fully discharged). Sounds low compared to the 15 hours Kobo quotes - however the discharge rate really depends on the screen turns in this time - literally mileage may vary from person to person!

I read quite fast and keep my font size a little larger because of eye problems - so more screen turns; but I also reduce margins and line-height to cut back page turns.

And just realised that so far I haven't collected some essential info to get good figures on the screen turn rate! I'll report again in a few days after the next full discharge cycle.
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