The rate of self-discharge of any battery will increase if:

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Multiple Choice

The rate of self-discharge of any battery will increase if:

Self-discharge occurs from internal chemical reactions inside the battery even when no external load is connected. When temperature rises, these reactions speed up, increasing ion mobility and accelerating parasitic processes at the electrodes and in the electrolyte. That higher activity drains stored energy faster, so the self-discharge rate goes up with temperature. A common rule of thumb is that self-discharge roughly doubles with about a 10°C rise for many battery chemistries. The other factors don’t drive self-discharge: simply disconnecting from a circuit doesn’t change the internal loss rate, changing the state of charge doesn’t inherently speed up internal reactions, and increasing voltage would imply charging, not spontaneous internal discharge.

Self-discharge occurs from internal chemical reactions inside the battery even when no external load is connected. When temperature rises, these reactions speed up, increasing ion mobility and accelerating parasitic processes at the electrodes and in the electrolyte. That higher activity drains stored energy faster, so the self-discharge rate goes up with temperature. A common rule of thumb is that self-discharge roughly doubles with about a 10°C rise for many battery chemistries. The other factors don’t drive self-discharge: simply disconnecting from a circuit doesn’t change the internal loss rate, changing the state of charge doesn’t inherently speed up internal reactions, and increasing voltage would imply charging, not spontaneous internal discharge.

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