mBot ships with both a 3.7-V rechargeable lithium battery and a 4-AA battery holder. In most cases, these are the best power supplies to use with mBot.
However, mBot will work with any 3.7 to 6 V DC power supply with the right connector and the center positive, including our LabQuest® 3 Power Supply (LQ3-PS) and LabQuest Battery Boost 2 (LQ-BOOST2). Both power supplies will connect to mBot, just like the included battery. While mBot must be tethered when using a LabQuest Power Supply, this may not be a hindrance for many activities. If using the Battery Boost, you will need to secure it to mBot; a rubber band will work just fine.