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Amazon.com: UpBright 10V AC/DC Adapter Compatible with Lego 45517 Mindstorms EV3 NXT 9797 8547 45544 95656 45501 8878 9693 7.4V Lithium Ion Li-Ion Rechargeable Battery 10VDC 600mA 700mA DC10V Power Supply Charger : Electronics
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LEGO Set K9833-2 Rechargeable Battery Set (AC Adapter 230V - 10V Transformer) (2006 Mindstorms > NXT) | Rebrickable - Build with LEGO
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