Hi @222b8037a9515a9f7e972a87d08a35. You can find some troubleshooting steps for this concern here in the marked solution. You should see a solid red LED lit up in the battery hatch when you insert a fully charged battery. If you don’t that may indicate a problem with the battery, especially if a different battery works. In that case, please give our support team a call at one of the numbers available here. If you are outside of the US, please visit here to see how to contact support.