KP 6*AA 7.2V 3500mAh Nickel Cadmium Rechargeable Battery

The nickel-cadmium battery, often known as a Ni-Cd battery or NiCad battery, is a type of rechargeable battery that uses metallic cadmium and nickel oxide hydroxide as electrode materials. It packs four batteries; its current capacity is 3500mAh its voltage is 7.2V. This battery is the direct competitor of lead-acid batteries. To make this battery, there is a total of six batteries connected inside, and the value of each battery is 1.2V, and the ampere-hour capacity is 3500mAh of each battery. Many electronic devices are designed to work with primary cells that may discharge as low as 0.90 to 1.0 V per cell; the relatively steady 1.2 V of a Ni–Cd cell is enough to allow operation. Some would consider the near-constant voltage a drawback, making it difficult to detect when the battery charge is low. Ni-Cd batteries used to replace 9 V batteries usually only have six cells for a terminal voltage of 7.2 volts.

Applications: Ni-Cd sealed cells can be used singly or together as battery packs with two or more cells. Small cells, frequently made in the exact sizes as primary cells, are utilised in toys and portable electronics (like solar garden lights). Ni-Cd batteries may function less effectively than primary cells when used in place of them due to their lower terminal voltage and reduced ampere-hour capacity. Photographic equipment, portable lights (such as flashlights or torches), computer memory standby, toys, and novelty items occasionally employ tiny button cells.

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