They are made with premium Lithium Ion cells and are rated as shown in the specifications. As one of the worlds most successful third party battery manufacturers Cameron Sino have been certified and approved by multiple authorities. There products are all verified and tested for safety. Look at all of the details below and make sure that the model of your product and also the battery number are shown in the information below. Top quality cells are used in all products but all cells have a cycle life. You can expect that a Lithium Ion or a lithium Polymer cell will last for around 400 cycles, Nimh can be cycled for a around five hundred cycles. Its always best to charge your battery only when it gets low. Continual charging will reduce the overall life expectancy of your battery. ISO 9001 certification means that strict manufacturing standards are adhered to. This Cameron Sino product is designed to be used in place of the batteries that are shown in the specs information below. Please be aware that some models have more than one battery type available and the only way you can confirm the correct battery is to remove the original.Our battery may have a slightly different capacity rating to your original either to increase the runtime of the product or due to the cells still available for the manufacture of the product. The product will still fit and charge as long as your device and battery number is listed.