Tuesday, July 31, 2007

How mear Series and Parallel Configurations(1)?

How mear Series and Parallel Configurations(1)? How mear Series and Parallel Configurations(1)? In most cases, a single cell does not provide a high enough voltage and a serial connection of several cells is needed. The metallic skin of the cell is insulated to prevent the 'hot' metal cylinders from creating an electrical short circuit against the neighboring cell. Nickel-based cells provide a nominal cell voltage of 1.25V. A lead acid cell delivers 2V and most Li-ion cells are rated at 3.6V. The spinel (manganese) and Li-ion polymer systems sometimes use 3.7V as the designated cell voltage. This is the reason for the often unfamiliar voltages, such as 11.1V for a three cell pack of spinel chemistry. Nickel-based cells are of View the rest of this article


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