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You’ll see “low signal” when you are using service in a poor reception area. When the phone needs to search for a signal all the time it uses more battery life. We normally see this on Home & Lock Screen and Personal Hotspot. The best thing to do to save battery in these situations is look for a way to get a better signal, or maybe even turn cellular off ...


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The percentage of battery used also factors in the amount of time you were using either the personal hotspot or the phone. Therefore, the percentage of battery use will also change, based on which service you use more frequently. Popstar is exactly right: constantly searching for a signal requires more power than maintaining a good signal. You could look ...


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If a lithium ion battery is drained and left to sit for an extended period of time uncharged, it can go into a "sleep" state that does not enable a recharge by standard charging methods. I found this info at http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries "Li-ion should never be discharged too low, and there are several safeguards ...


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The symptoms you report are common of lithium power cells that are failing. Why not have it looked at by Apple as they have online battery diagnosis available from web support and if you bought it from an Apple Reseller or Apple Directly, the warranty should cover the problem if the battery isn't performing correctly.


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Your question is a great excuse to update and expand my previous answer on interpreting these diagnostic logs. The partial charge field is a simple binary field. A zero means you didn't plug in your phone and these logs document how much usage you got out of a full charge. A one value means that you did plug your phone in after the last full charge and that ...


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That shouldn't happen at all. I think the battery itself has a defect. Because the battery wasn't charged before you got it, for a much longer time than two weeks. Because, the seller has, obviously, stored the battery himself for a long time. I would recommend to return the battery immediately. Otherwise you risk damage to your laptop.


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I can speak from experience that the battery from by 2011 MBP 13' died (like only 10% of designed capacity left) after 56 cycles. It met a precipitous decline after a certain point. You may want you weigh your risk on the cost of replacing the battery.


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There are 3 main factors that age a battery. One is of course the constant charging and discharging.- the more the faster. Second one is less know and it is the shelf life. Even if you do not use a battery it will eventually die due to the internal currents / shelf life. Third and worse is Charging at all times in a elevated temperature environment. In ...


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In my experience one of the worst things for a battery is to leave it plugged in and not cycle it. After doing this for a few months most batteries seem to become useless, sometimes not even keeping a charge for 5 minutes.



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