To explain this would take far too long and won't fit in this small box. Batteries in all devices do not last forever and this has some owners upset.
I recently went to several apple stalls which sell those iPhone speakers with dock. And I have noticed that a number of iPhone display already have battery problem. Common example is that iPHone show fully charged but when you remove the cable, the battery is only half full. Does that mean that using those iPod speakers do damage and overcharge iPod/iPhone? So we should not buy that kind of speakers?
I'm planning to buy a iPod speakers for my room. Any suggestions? Thanks!