- Some batteries need to be turned on before use. 
B1U – (NCM Paris) set key to ON position
I5 – the latest series of NCM Moscow, Milano, Venice (push button level indicator)
R3S – NCM Munich/NCM Hamburg (Toggle switch on the bottom of the battery)
D5 – NCM Prague (push button on the side of the battery)


- The battery must be correctly seated in the battery rail.

The battery poles must be in contact with the battery seat and the battery must be locked to avoid sparks and connection problems.  

All batteries with on-switch must be turned off before removing them from the battery rail!


If battery problems persist, please contact Leon Cycle. 


You can call us on Tel (03) 90695443 Monday to Friday 9am-5pm


Whatsapp number: +61490389614 (To message us directly, please add this number to your phone as a contact and send us a chat. This number does not receive any incoming voice or regular text.


You can email the Leon Cycle support team at support.au@leoncycle.com