Battery testing

mpe

Finding my (electric) wheels
Jul 6, 2015
14
0
74
Hello all - does anybody know of a company that can test the battery on my 24v Cylamatic bike?

It runs for a few minutes then everything goes dead - even the test lights on the top of the battery will not light when the test button is pressed.

If the key is turned off and on again all lights come back on indicating that it is fully charged.

Ride it for a few more minutes and the same thing happens.

Reading the battery off load with a meter shows 28v

Any suggestions would be most welcome