Due to safety standard evolution (IEC 62368-1), legislation is stricter for battery access conditions and require the usage of a tool or two timely separated motions to access the battery. 

To avoid the need of a tool, choice has been done on Amy to use the two timely separated operations:

 

1st operation:

 

2nd operation:

 

 

 

To make the battery insertion easier at step 5, Insert it first on the + contact side to avoid damaging it:

 

 

Then put the battery cover in place: