I like the chair, but the delivery team is not versed in how to install the optional battery connection if you have opted for that. The battery and bracket come with minimal instructions and none that pertain to the actual chair we purchased. It is important  NOT to use the plug-in cord included with the chair, to turn the chair over and expose the corded connection inside the furniture. Both the male and female ends of the cords (you will need the male, I believe to plug into the battery - whichever is on the cord from the battery - and a screwdriver. There's two little plastic brackets that hold the cords in place and you must remove at least one of them to be able to plug it into the chair. The battery comes mostly charged, so blow through that charge before charging the battery.