E-B52 Code
Check Benno E-B52 e-Bike Error Code :
Indication conditions
A fault may exist.
Solution
It is not possible to put the system into “Sleep mode” due to the combination of products.
Replace the products one by one (RD, FD, or junction [A]...) and re-check the battery current error. If the error is repeated, contact the place of purchase or a distributor.