Motorbike Disk Lock

Press the lock core,it will be locked and it will go into the alarming situation.If you use key to slip the butterfly lock,it will stop alarming.When the alarming is not loud enough, the battery are needed replacing.It is easy to replace the battery, First,spin out the four screws at the bottom of the butterfly lock, then take away the cover .After that,you can take away the battery and put the new battery into it and cover it .But you should pay attention to the anode and