The LEGO Large Hub Battery is a rechargeable lithium-ion battery for use with the Technic Large Hub. This high-capacity, 2,000 mAh battery can be charged while fitted to the hub using a micro USB cable and can also be removed quickly and conveniently without the need for tools. 

• High-capacity 2,000 mAh lithium-ion battery for extended use between charges.
• In-situ charging via USB cable.
• Quick, tool-free battery replacement.
• Included with the Technic Large Hub (45601) and SPIKE^™ Prime Set (45678).

Compatible with

• 45678 SPIKE Prime Set
• 45601 Large Hub