About LEGO Technic Small Hub Battery (45612)

The LEGO Technic Small Hub Battery is a rechargeable lithium-ion battery for use with the Technic Small Hub (45609). This 630 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. This battery is included with the LEGO Technic Small Hub and LEGO Education SPIKE Essential Set (45345).