你可以恢复一下出厂模式 或者是恢复一下工厂模式 ，风险自担

Hello,
I just changed my old kobo aura for the new kobo libra 2.
I have problems with the battery. I don't have the promised weeks of autonomy. I read about 4 or 5 hours a day and my e-reader discharges in a few days.
I don't use wifi and my ebooks are transferred by caliber in kepub format. The first update is well installed.
Is this normal? My Aura was better (several weeks of autonomy) and now I'm a little disappointed.
Should I send it back for an exchange? Or is it a software issue ?
Thank you for your help.
Answer:
The battery is probably fine. Kobo readers (I have the Clara HD and the Libra 2, among others) are notorious for underreporting the battery-life remaining for the first few discharge cycles, until the device "learns" the capacity. Just let it ACTUALLY run down once or twice (turn off the go-to-sleep timer and leave the ebook reader on) and then fully recharge it, and the meter should be accurate.
THANKS:
Thanks for answers, it reassures me. I'm going to do some full discharge to see if it makes a difference.
To give more concrete figures, yesterday, after a full charge, I had a discharge of 10% for 3h30 of reading.
But I noticed a bug in the reading statistics. Yesterday I was at 11.6 hours of reading on my ebook and this morning it went to 10.6 hours.

需要完全充放电3次以上，就是用到自己关机然后在充满

多谢各位，已经搞定了

一般循环放电几次就正常的了。

我收回之前说的话，还是没搞定，今天又开始了，待机状态下，从100%掉到65%只用了10个小时

楼主的kl2续航现在如何了，我的最早是一小时掉4-5个电，后来按照贴吧进行了三次完全充电，也没有大的改善，现在安装了koreader，基本上一小时能掉8个电了……我现在只能假装无视了，不过待机还算比较省电，休眠状态下一晚上掉一个电，供楼主参考

正常20小时续航。但是待机很省，一晚上几乎不掉的。还行够用了

终于找到原因了，是因为之前用的鬼知道谁做的电子书转换工具，做出来的书耗电，换了calibre传书，一切正常了

还是不行，还是很耗电，休眠一晚就没电了

开灯没有？无线开了吗