Cellphone batteries last after fully charged, through the electricity inserted in the phone while being plugged in. Batteries typically have to be replaced as needed, or every year.
yes, they could explode
When you purchased your cellphone it should have came with a manual that gives you the information on how to replace the cellphone battery in your cellphone, if not, then contacting your mobile phone provider will be your best option.
Different cellphones use different size, types and brand of batteries. Most of the materials used on these batteries though are Nickel Cadmium or as they are called Ni-Cd batteries.
Batteries...
Research has shown that high temperatures can wear down cellphone batteries. One should try to make sure not to expose a cellphone to high temperatures by leaving a phone in a hot car or even in one's pocket where body heat can effect the battery. This will cause the battery to wear out much faster than if it were to be cared for properly.
Mercury is commonly used in Cell Phone and Laptop batteries.
If you go into a cellphone store, sometimes they can fix it right then and there. But if not, there are plently of websites, such as Amazon.com, that sell new bluetooth devices for cellphones.
There are many companies which will give you cellular batteries , online. It is better to contact manufacturer on you cellphone to get information about their authorized dealer. you may search on Smart-Shop.com, , shopper.cnet.com Batteries can be purchased form a number of stores online. eBay has a wide seleciton of cellular batteries.
The term cellphone development can have two meanings. The first is the manufacture of cell phones and their related parts (chargers, batteries, etc.). The other meaning is the production of software designed to be used on a cell phone.
Pull the Batteries Out...
You probably need new batteries. Try it.