This listing is for 2 rechargeable lithium batteries compatible with LEGO NXT Mindstorms, model number 9798. These batteries provide a reliable power source for your robot creations, and are in excellent working condition. They have been tested and are ready to use.

The batteries are 7.4V and have a capacity of 1500mAh, providing long-lasting power for your LEGO robots. They are suitable for use with a variety of LEGO Mindstorms models and are an essential part of any robot enthusiast's toolkit.