My phone, equipped with its semi-rigid shell thick enough "Cruzerlite Bugdroid Case Circuit", perfectly placed on the base provided to remove the plastic frame (as seen in the picture on the packaging).
Why then did I put that 3 stars?
Firstly because I tested two devices from two different vendors and with both I met the same concern on a full overnight charge: phone recharges as 100%, so it is impossible to get a load 100% of the additional port. We arrive at 93%, 95%.
Yet I have verified that the batteries are fully seated in the pins and I made many tests.
Second, the supplied batteries are really quality inferior to that provided with the phone.
Conclusion: I do not regret my purchase, since both batteries are still good backup and the load on the Mondpalast allows not prematurely wear the USB port of LG.