I have worked about 10 countries on 6meter Simplex, done Moon Bounce on VHF/UHF simplex, worked the Space Shuttle a number of times and worked just over 1,200 miles once on 220 FM Simplex. I like 2meter SSB and CW also.
There are a number of OEM battery makers out there that will provide newer type batteries for the older HTs that used to use NiCads. W&W Manufacturing is one that I use and since it is located on Long Island, I can drop in to get replacements.
Bob - WA2YDV