Battery Cube – Classic & Bluetooth Variants Power your creations with the versatile Battery Cube, available in two variants: Classic and Bluetooth. Whether you're building circuits, adding motors, or lighting up LEDs, these rechargeable Battery Cubes are designed for seamless integration with your brick-based creations. Perfect for young innovators, both versions have been safety-tested and approved for ages 8+, providing an easy and engaging way to explore STEM concepts. Classic Battery Cube (Non-Bluetooth) Our Classic Battery Cube delivers 3.7 - 4.2 volts DC to power your circuits. It has a positive and negative terminal, and the LED on top will flash red to indicate a short circuit. Rechargeable via the included microUSB cable, this Cube is ideal for simple builds that don't require wireless connectivity. Voltage: 3.7 - 4.2V DC Features: Fits your bricks! Compatible with major brick brands Seamless circuit connectivity (no soldering required) Safety-tested and approved for ages 8+ Created by STEM educators, tested by kids Includes: MicroUSB charging cable Important Note: If the LED flashes red, troubleshoot for a short circuit. Bluetooth Battery Cube (With Wireless Connectivity) The Bluetooth Battery Cube brings wireless control to your circuits. It has a 3-position switch (ON/OFF/BLUETOOTH) for added functionality. When switched to Bluetooth mode, the LED flashes blue, allowing you to pair it with your smartphone or tablet through the Circuit Cubes App. Once paired, control your builds remotely for an enhanced, interactive experience. Voltage: 3.7 - 4.2V DC Bluetooth Features: Wireless control through the Circuit Cubes App LED status indicators: Green (ON), Blue (Bluetooth) Control all three outputs remotely via the app Includes: Bluetooth Battery Cube USB charger Additional Features: Fits your bricks! Compatible with major brick brands Seamless circuit connectivity (no soldering required) Safety-tested and approved for ages 8+ Created by STEM educators, tested and approved by kids Important Safety Information: Handle your Battery Cube carefully to avoid damage or injury. These Cubes contain sensitive electronic components, including lithium-ion batteries, which can be damaged if dropped, burned, punctured, crushed, or exposed to excessive heat or liquids. Do not attempt to replace the batteries yourself, and only recycle through authorized providers like Tenka Inc. For more information, visit Cube Care.
