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K9833Rechargeable Battery Set

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Bring new life to your robot!

Add this rechargeable battery and charger set to your LEGO® MINDSTORMS® NXT robot and end your need for AA batteries!


  • Rechargeable battery is lithium.

  • Includes #9798 Rechargeable Battery and #9833 Transformer.

  • Standard 9v transformer plugs in to an AC outlet to recharge battery.

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