This is the newest of the three batteries listed and is also known as a Li-Ion battery. These type of batteries are considered to be the strongest of the three. A fault of this battery, however, is that it is not able to take on too much heat when being used or recharged. If it does receive too much heat it can make the battery deteriorate faster. Lithium Ion batteries features include: It is lightweight Is able to charge fast and has a long run time Less susceptible to temperature changes Life capacity of 300-500 charges Is not harmful to the environment