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Old 03-01-2012, 07:51 AM   #1
Brianrh
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Battery Indicator Question

I was surprised last night when I went to use my Kobo Touch to find that it informed me that it needed charging. I am convinced that the previous night the battery indicator was showing about 25%. I have had the KT since Christmas and only part charged twice but never had it go so low for this warning screen to appear.

I have been told that the battery use is supposed to improve for cycling discharge and charge a few times but does the hardware auto-calibrate? Are these indicators very accurate anyway.

What have you other Kobo Touch users found?

Thanks.

Brian
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Old 03-01-2012, 08:06 AM   #2
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I seem to remember when it hits about 25% the charge drops pretty fast.
But until (around) then, it holds its charge for ages.
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Old 03-01-2012, 10:38 AM   #3
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Originally Posted by danskmacabre View Post
I seem to remember when it hits about 25% the charge drops pretty fast.
But until (around) then, it holds its charge for ages.
That would fit in with what I've found. It's a pity there isn't an earlier warning that the battery is getting low. Still I know now and will keep it topped up.

Thanks.

Brian
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Old 03-01-2012, 10:50 AM   #4
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That's pretty common. Most people report that the KT can shut down without warning any time when the battery meter gets down to what looks like about 25%, and that's certainly what I have seen over 8 months of use. I have seen a low-battery warning exactly once, but it's unreliable. Usually the KT just won't turn on.

Since it's apparently not a good idea to fully discharge these batteries, you should probably charge it anyway when you see it that low. Another tip: Leave it on the charger an extra half hour after the check mark appears on the battery icon if you don't want the battery meter to drop immediately to 90% when you turn it on.
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Old 03-01-2012, 03:39 PM   #5
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I left my KT on charge using a mains USB charger overnight. I read for about 10 minutes tonight and the battery indicator was showing about 60%. I wish I had thought to check what the indicator was showing after taking it off charge and before reading tonight.

I think I need to get a handle on the charging and discharging characteristics of my KT.

Brian
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Old 03-02-2012, 05:05 AM   #6
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Despite fully charging and discharging mine a few times, the battery indicator was always at a quarter when the charge ran out. Apparently, it's best to keep the battery sitting around 40% to prolong its life and to have a short charge/discharge cycle. (http://batteryuniversity.com/learn/a...ased_batteries).
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Old 03-02-2012, 05:16 PM   #7
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Quote:
Originally Posted by tsb1 View Post
Despite fully charging and discharging mine a few times, the battery indicator was always at a quarter when the charge ran out. Apparently, it's best to keep the battery sitting around 40% to prolong its life and to have a short charge/discharge cycle. (http://batteryuniversity.com/learn/a...ased_batteries).
Thanks for the link

Computer forums have had this sort of advice from time to time but it's nice to have it confirmed

It looks as though our Kobo Touch batteries will last three to five years, that's if we haven't lost or damaged the eReaders before then

Apparently the battery is not replaceable by the user but there may be some specialist battery companies that will have a go !

Last edited by Quelch; 03-02-2012 at 05:17 PM. Reason: Grammar
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Old 03-03-2012, 10:29 PM   #8
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Apparently the battery is not replaceable by the user but there may be some specialist battery companies that will have a go !
I strongly suspect Kobo batteries will appear for sale on eBay in a year or two. Batteries are still available for my Palm TX which hasn't been made for five or seven years.
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