Which battery type is known for high current demands due to its charge retention?

The Nickel-Cadmium (NiCd) battery is well-known for its ability to handle high current demands due to its excellent charge retention properties. This makes it particularly suitable for applications where a significant amount of power is required over a short period, such as in aviation and aerospace systems. NiCd batteries can deliver a consistent voltage and maintain their performance even under extensive discharge conditions, providing reliable power for critical systems.

Their resilience to deep discharges and ability to be recharged multiple times without a significant loss in performance are key attributes that contribute to their effectiveness in high-drain applications.

In contrast, while lead-acid batteries have been traditionally used in various applications, they are less suited for high current loads compared to nickel-cadmium batteries. Dynamo batteries, primarily associated with generating electricity rather than retaining charge for high current applications, do not fit within the same high-demand context. Dry cell batteries are also limited in their capacity to deliver sustained high current compared to nickel-cadmium batteries, making them less effective in situations that require robust power outputs.