LEGO Technic Large Hub Battery

Connect it then flip the switch to power all of your creations!

Fitted with 6 batteries Features: •6xAA Battery Holder with 20cm lead. •Perfect for Arduino. •Compatible to Makeblock Base Bracket.

Makeblock mBot liitiumaku

AA size Sony Ni-MH 2500 mAh batteries - 2 pcs in a pack

An extra battery for your Sphero RVR

A replacement battery for either the Bee-Bot or Blue-Bot Rechargeable Floor Robot.

This NiMH battery with connector is designed to be combined with the Energy Display (9668). When combined, the two elements form the LEGO® Energy Meter. Storage capacity: 150 mAh.