Cell phone battery is an essential accessory that needs replacement after about 300 charges or an average of one year depending on the amount of daily use. With more and more features added to newer wireless phone models, batteries play a larger role in the overall function of cellular phones. Some mobile phones are built with an internal battery that need replacement by opening the casing of the phone whereas some phones have their batteries attached externally outside the casing of the phone. Internal batteries are usually smaller in size because they do not require any impact resistant casing. External batteries are larger with an impact resistant casing that usually varies in color depending upon the color of the phone model. Replacement batteries give a new life to old phones to keep them going and working great for a many years. This reduces the need to replace phones prematurely before they break down thereby reducing waste. Cellphone batteries are one of the best selling accessories at this wireless acc. store – Click on its link on the right for more details!