This is a 4x AA battery holder with on-off switch for the Hummingbird
Ideal replacement for the Hummingbird's motor power supply in situations where you wish to create untethered machines and set your robot free of cables.
The Battery Pack is compatible with both the Hummingbird Duo and Hummingbird Bit.
The Battery Pack requires 4x AA batteries - batteries are not included with this pack.
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