The Tailgater Tough comes with a USB-C to USB-A cable for charging. This cable needs to be plugged into a charging block with an output that is exactly 5V with a minimum of 2A (or 2,000 mA). This will be printed on the charging block.
Some charging blocks that come with phones may not be enough. A 1A (or 1,000 mA) power block will underpower your speaker, causing the battery to have a short life or prevent the speaker from powering on. If your Tailgater Tough is having battery issues, try replacing the block with the correct specifications and charge the battery overnight.