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← ScienceWhich risk increases significantly when using nickel-cadmium (Ni-Cd) batteries with frequent shallow discharges, leading to reduced runtimes?
A)Reduced electrolyte conductivity
B)Voltage runaway propagation
C)Crystal structure degradation
D)Memory effect manifestation✓
💡 Explanation
Frequent shallow discharges in Ni-Cd batteries encourage the growth of larger cadmium crystals causing the memory effect manifestation because cadmium hydroxide bonds reorganize due to repeated partial cycling; therefore, the usable capacity diminishes rather than structural degradation or voltage spikes.
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