BrickLink - Part 87513c01 : LEGO Electric 9V Battery Box Power Functions (Non-Rechargeable) with Dark Bluish Gray Bottom [Electric, Battery Box] - BrickLink Reference Catalog
LEGO Medium Stone Gray Power Functions Battery Box (AAA Non-Rechargeable) (64228) | Brick Owl - LEGO Marketplace
LEGO® Power Functions Battery Box - SBrick
Batteries and Battery packs
LEGO Power Functions AAA Battery Box 88000 - YouTube
LEGO Power Functions Rechargeable Battery Box 8878 - Walmart.com
LEGO Technic Power Functions AAA Battery Box (88000) - NEW - FREE POSTAGE | eBay
Batteries and Battery packs
LEGO Power Functions AAA Battery Box 88000
LEGO® 4578042 - 4638959 - 6116239 87513c01
LEGO® Technic 42077 Buggy B-model Power Functions building instructions - RacingBrick