LEGO part 87513c01 - Light Bluish Gray Electric 9V Battery Box Power Functions (Non-Rechargeable) with Dark Bluish Gray Bottom at BrickScout
LEGO LEGO Functions: Power Functions AAA Battery Box (88000) for sale online | eBay
Power Functions Battery Box Compatible With Model 8881 - BuildingToyStore.com
Technic Power Function Building Blocks Motor Battery Box IR Remote Receiver Light Compatible Lego Kids Toys| | - AliExpress
lego motor bricks Battery Box For LEGOING Technic Power Functions AAA Battery Box DIY Case 88000 Building Blocks Imaginative|Stacking Blocks| - AliExpress
LEGO PART 84599 Battery Box, Power Functions, with Dark Bluish Gray Bottom [Rechargeable] | Rebrickable - Build with LEGO
Power Functions | World of Bricks | Holger Matthes
Power Functions Battery Box & Mindsensors' NXTServo
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)
Power Functions AAA Battery Box LEGO - Power Functions (88000) - from Sort It Apps