I have had a lot of problems with the motion sensor, disconnecting, not responding, staying on motion,
I have found the problem, and a simple solution
Inside the outer case are a lot of tube shaped moldings, take the outer case off, two are extra long to hold the battery, trouble is they are to long and can dislodge the battery from its very flimsy connectors
CUT THEM DOWN to the same length as the others
No problem now
Hope this helps people
Graham