Alternative LEGO Rechargeable Battery Box (8878) – Green Gecko Workshop
LEGO® Power Functions Battery Box 8881 | Other | Buy online at the Official LEGO® Shop US
LEGO has a mysterious new rechargeable battery, what can be the product? - RacingBrick
LEGO Power Functions 8881 Battery Box 8883 XL M Motor IR Receiver Controlled Set | eBay
BrickLink - Set 8878-1 : LEGO Power Functions Rechargeable Battery Box [Power Functions] - BrickLink Reference Catalog
Batteries and Battery packs
NEW LEGO TECHNIC Power Functions Rechargeable Battery Box 8878 $72.99 - PicClick
LEGO Creator Power Functions Rechargeable Battery Box (8878) for sale online | 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)
Power Functions revisited | Quest for Bricks
LEGO PART 84599 Battery Box, Power Functions, with Dark Bluish Gray Bottom [ Rechargeable] | Rebrickable - Build with LEGO
BrickLink - Part 87513c02 : LEGO Electric 9V Battery Box Power Functions (Non-Rechargeable) with Red Bottom [Electric, Battery Box] - BrickLink Reference Catalog