Is it a brand new or used battery pack?
I had something similar with my 2016 Radrover 11.4Ah battery. I accidentally plugged in the wrong charger and burnt the internal fuse. The battery pack worked as normal powering the rover; but, I couldn't charge the pack (same green light). I had to take the battery pack apart and replace the internal fuse to get it work as normal (I think it was a mini 5amp).
I don't know if the newer battery pack have an internal fuse like the old ones?
I had something similar with my 2016 Radrover 11.4Ah battery. I accidentally plugged in the wrong charger and burnt the internal fuse. The battery pack worked as normal powering the rover; but, I couldn't charge the pack (same green light). I had to take the battery pack apart and replace the internal fuse to get it work as normal (I think it was a mini 5amp).
I don't know if the newer battery pack have an internal fuse like the old ones?