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65
votes
7answers
101k 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 ...
2
votes
6answers
81k views

iPhone 4 will charge in wall, but won't sync or charge via USB

I have an iPhone 4 that is showing its age. It will charge when plugged into the wall charger. However, when I plug the same cable into a USB port on my computer it will not charge or be recognized ...
7
votes
3answers
602 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 ...
47
votes
7answers
110k views

Is charging iPhone all night harmful to my iPhone?

I normally charge my iPhone all night to get 100% power, does this charging way harm my phone? Or, specifically, phone battery?
8
votes
1answer
6k 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.