0
votes
0answers
31 views

Iphone 4 will not turn on, apple comes for 10 seconds then goes back off

I have no idea whats wrong with it. just started recently happening the other day I reached for it and it was off. Battery was on 49% when I left it, plugged it back in then it showed it was flat? ...
3
votes
1answer
488 views

How to know the duration of battery usage in one session?

I would like to know how long was my battery running since it's last charge. There is a built-in time-remaining counter but I would like a time-used counter.
7
votes
3answers
146 views

Event based on battery charge level

I haven't found anything yet so I was hoping maybe someone here had an idea. I want to kick off an even based on battery on an Apple laptop reaching a certain charge level, or when the battery is ...
0
votes
1answer
79 views

Iphone 4s turns it self off

it started today and happened twice, my iPhone turns it self off even battery has %15-17 charge, i cant open it, empty battery sign appears when i plug it to charge, it begins to charge from %15-17, i ...
0
votes
1answer
107 views

iPod Model #1238 will not charge

I have an iPod Model #A1238 in which the battery is low. I tried to connect the power adapter cable which was provided to try to charge it but no luck. I thought it was the power cable so I bought a ...
39
votes
6answers
43k views

Should I disconnect my MacBook Pro's power cord when the battery is fully charged?

Title says all. My friend told me that I need to disconnect the power cord when the battery is fully charged. Otherwise, I will shorten the life of the battery. Is that true? I am going to use my ...
3
votes
2answers
861 views

iPhone/iPad battery charging/discharging cycle

Apple recommends at least one charge cycle (charge to 100% and then running it down completely) per month. Then, is it OK to charge iPad/iPhone all the time as long as I have charge cycle per month? ...