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Module 3. Electrical fundamentals

If a nicad battery is not to be used immediately it should be stored

  • dry.
  • fully charged.
  • fully dissipated.

Explanation

Unlike a lead-acid battery, a nickel-cadmium battery is not harmed by sitting in a low state of charge and is normally stored fully discharged (dissipated). Storing it dry or charged offers no benefit and a charged nicad self-discharges in storage anyway, so the discharged state is preferred.

Afshinarabi asking:

it should be stored fully charged

Community Comments (1)

D
Devraj_S Posts: 6 14.05.2026 / 04:49
The marked answer is correct here. Nickel-cadmium aircraft batteries are stored fully discharged, typically with shorting links fitted across the cells so any residual charge cannot drive dendrite growth between the plates. You may be thinking of lead-acid practice, which is the opposite case; per Module 3.6 secondary cells, lead-acid must be stored fully charged to prevent sulphation.

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