Amazon.com: LEGO Functions Power Functions Battery Box 8881 (1 Piece) : Toys & Games
Alternative LEGO Rechargeable Battery Box (8878) – Green Gecko Workshop
LEGO LEGO Functions: Power Functions Battery Box (8881) for sale online | eBay
Amazon.com: Functions Power Functions Battery Box Compatible with Lego 8881,MOC Brick Parts PF Building Blocks Toy Assembled Accessories : Toys & Games
www.philohome.com/batteries/bat1.jpg
LEGO Power Functions 8881 Battery Box 8883 XL M Motor IR Receiver Controlled Set | eBay
LEGO PART 64228 Battery Box, Power Functions, with Dark Bluish Gray Bottom [Non-Rechargeable] | Rebrickable - Build with LEGO
How do I open this battery box? YouTube is not very helpful. Part no. 2847 : r/lego