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BrickLink - Set 8878-1 : LEGO Power Functions Rechargeable Battery Box [Power Functions] - BrickLink Reference Catalog
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LEGO 8878 Power Functions Rechargeable Battery Box Set Parts Inventory and Instructions - LEGO Reference Guide
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Amazon.com: T POWER 10v Charger Compatible for Lego Mindstorms EV3 NXT 45517, 45501, 8878, 9693, 16523 Ac Dc Adapter Power Supply Cord : Electronics
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