And by nearly impossible, I mean absolutely impossible unless you have a bench vice, which is ultimately what I had to use to get the battery pack back off my radio after I first installed it

Without the bench vice, I'm sure I would have damaged the radio in my efforts to remove the pack

Will will have to try pulling it off the radio in a bench vice later and see if that ends up destroying the radio

and you'll be back to the bench vice in-between rounds of filing