This was a great article. It was very thorough and informative. I just thought that I would add my story to this article, as it relates directly to cell phone chargers.
If you can help it, I think it is always best that you use the mobile phone charger that came with your phone when you bought it. Doing so is the best way to make sure that you are using the right charger for your cell phone. If you are not, you could damage your phone beyond repair.
I was spending the night over a friend's house last summer, and I forgot to pack my cell phone charger with me. I use my phone a lot throughout the day. By the time the day is over, my phone is usually due for another charge.
She claimed that her phone charger would fit into my phone as well. She had some sort of Android phone, and I had a Blackberry. I was skeptical of this, but I decided to give it a try.
The charger was too big to fit in my phone. It was a tight squeeze getting the charger in the phone, and when I pulled it out, it broke off inside of the phone. I took my cell phone to the retailer where I bought it, and they said that it could not be fixed and I needed to buy another phone.
I told my story to say, only use phone chargers made by your phone charger and for your specific phone model. It is not worth potentially breaking your phone with a foreign charger, just so you can have a full charge the next day.