BrickLink - Part bb0045c03 : LEGO Electric 4.5V Battery Box 6 x 11 x 3 1/3 Type III for 1-Prong & 2-Prong Connectors [Electric, Battery Box] - BrickLink Reference Catalog
Battery Box 88015 | Powered UP | Buy online at the Official LEGO® Shop US
Power Function Rechargeable Battery 8878 - General LEGO Discussion - Eurobricks Forums
The new Powered Up battery box | Brickset: LEGO set guide and database
LEGO® Power Functions Rechargeable Battery Box 8878 | Other | Buy online at the Official LEGO® Shop US
Power Functions 88000 AAA Battery Box for Trains/Motors/Lights/MOCs For LEGO Toy | eBay
DooQi CADA Technik Power Function Kit for Technical Cars, Including 3 Motors, LEDs, Battery Box and 2.4 Ghz Remote Control (Compatible with Many Models Such As Lego CADA) (S059-001)
Look Ma, No USB! Untethering the WeDo – LEGO Engineering
1960s LEGO battery box and light brick | Quest for Bricks
LEGO Power Functions - M Motor 8883 and AAA Battery Box 88000 Review ( PF ) - YouTube
Lego Train Bricks Powered UP Hub Bluetooth AAA Battery Pack Receiver 88009 NEW 673419309097 | eBay
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LEGO Power Functions AAA Battery Box 88000
LEGO Power Functions Battery Box with Beam Connectors with On Off Sticker (59510) | Brick Owl - LEGO Marketplace
Batteries and Battery packs
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LEGO PART 84599 Battery Box, Power Functions, with Dark Bluish Gray Bottom [Rechargeable] | Rebrickable - Build with LEGO
Look Ma, No USB! Untethering the WeDo – LEGO Engineering
Overview | LEGO® compatible Battery Case | Adafruit Learning System