The lithium ion EV3 Rechargeable DC Battery is designed for use with the EV3 Intelligent Brick and features a capacity of 2050 mAh.
It provides longer run time than AA batteries and can be charged without taking the model apart.
Unlike conventional batteries, the Mindstorms EV3 rechargeable battery can be recharged without being removed from your construction.
Robot Advance also offers many Lego toy robots to discover, such as the Lego Mindstorms EV3 robot!