All batteries mention mAh numbers – What are these mAh numbers and why are batteries mostly more expensive when they have a greater mAh number?
That number denotes the capacity of a battery. Greater the mAh number, greater the capacity and greater the talk/standby times of that battery within that grade. Batteries are available in four grades. In the order of their introduction from oldest to the newest, they are as follows: Nickel Cadmium (NiCD), Nickel Metal Hydride (NiMH), Lithium Ion (Li-Ion), and Polymer. Therefore, the greater the mAh number does not necessarily mean that the battery has greater capacity. For example, NiCD batteries are the oldest ones around whereas the Polymer batteries are made of the newest advanced technology. Therefore, a polymer battery may have a lower mAh, less weight, and less thickness than a nickel cadmium battery and yet provide a greater capacity.
