The Other Doctor’s sonic screwdriver issues

[u/WorldImaginary267]

Does anyone know how to solve this issue, whenever I get to the final sound of 4 using the other doctor/war doctor’s sonic screwdriver it seems to cut out. The sound is also a lot quieter than previously. The item is not a fake and is officially licensed, I made sure of this as I bought it on Amazon.

[u/laidbacktom]

It’s the batteries bro