Energizer PP355 - Manual (Page 11)

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ENERGIZER BATTERY MANUFACTURING
VERSION 1.2
2.5 ‐‐ Activation Time and Air Requirements
When batteries are stored with the adhesive tab intact, they have a lower open circuit voltage (OCV)
since the oxygen contained in the battery is consumed during storage. When the tab is removed the
OCV will rise as oxygen activates the air electrode. With multiple air holes for added rate capability, the
PP355 may take a couple of seconds to air up enough to sustain a 50 mW load above 1 volt. Based on
the time it will take a consumer to remove the tab, insert the battery into the device, close the battery
compartment, the battery should be ready to support the device load when the user turns on the
power.
For maximum performance of a PP355 under a 50 mW continuous load, a minimum air flow rate of 2‐3
cc of air per minute is needed. For higher power demand devices (100 mW), a minimum of 4‐6 cc of air
per minute is needed. In most devices this amount of air easily leaks into the battery compartment.