Vertex FNB-27, YAESU,FT-26,FT-76,FT-415,FT-416,FT-815,FT-816,FT-530, 12v 600mAh NiCd 2-Way Radio "replace nicad batteries lithium ion" Questions

...NiCad batteries do not work. I want to replaced it by new LiH type. What is the best way to open the battery case without damaging it? thanks Piermichel It's difficult to open the Vertex packs ...