Seeking Electronic devices that used even number of primary battery

[admin]

Electronic device that use odd number of batteries, eg. 3, 5,7 , is really an inconvenience to the user. Since battery usually come in even number pack. The only exception that acceptable to me would be device that use 1 battery.

Is there any GPS, walkie talkie, emergency radio, that use even number of batteries, either 2 or 4, ideally CR123 ?

[Author]

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