Cozmo and Vector have very similar parts in most cases. They have exactly the same gear system, the same battery, the same spec motors, and even the same arm mechanics. Vectors parts
Replacement Anki Cozmo Charger / Battery Charging Dock ( 300-00030, 300-00048) | eBay
Anki battery upgrade to 130mAh : r/AnkiOverdrive
Anki Cozmo Collector's Edition Real-life Robot - Newegg.com
Cozmo 1 X Battery charger module + New battery + 2 X Motors Ready to plug & pay | eBay
Replacement Anki Cozmo Charger / Battery Charging Dock ( 300-00030, 300-00048) | eBay