Error Code 30

[Nittany]

Keep getting error code 30 on startup.    Lights and display come on but battery indicator indicates no charge on display and throttle doesn?t respond.   Checked all connections nothing noticed.   Battery indicator on battery shows full charge.  If I remove the battery several times and turn it off and on several times it magically starts to work and I can ride forever until I stop and shut it off then back to error code 30 on startup.  Any help or suggestions would be helpful as I do not live anywhere near a rad dealer/repair shop.   

[John Rose]

See https://radpowerbikes.pxf.io/NkZ4rq

I picked one model at random, and found this:

In the unlikely event you see an error 30 message on your RadMini, perform a connector check to ensure all connectors are secure and in good condition.

Follow the steps below to check the connectors on your bike to resolve the issue. ...

Then they go on to show where to find the connectors for that model and how to check them.