sfx2000
Part of the Furniture
And yes the ABB charger does have a 4G module, but unfortunately I have no reception in the garage. And I cannot swap parking spots as we own spot B.
I would double-check - LTE CAT-M1 and NB-IOT have significantly higher sensitivity than handsets do, due to modulation schemes, symbol repetition, and other enhancements...
4G-LTE on handsets typically is around -110 to -115 dB (depends on channel BW and radio configs)
CAT-M1 is around -155, NB-IOT is around -164
So might be worth checking out...