Help with an Error Code E08B

[tomob3]

This is my first post on the forum and I hope I've posted in the proper area. I am new to the Segway. I bought my first unit, a used 2006 i2, about 6 weeks ago and glide almost every day. I went gliding last night for about 8 miles. Just as igot back to my house, the Segway went into shutdown and gave me a sad face, wrench, and an E08B error code. I've searched the forum and Google and cant find a reference to this code anywhere. I'd appreciate any help.