I've only used factory batteries (FNB-80LI is $63 at http://www.hamcity.com
). I have heard Batteries America stuff is fine. I've always just used the Yaesu NC-72B to charge our HTs and my FT-817 in the radio, but that drop-in CD-15 desk charger would be really nice. This will work with the battery alone or mounted to the radio.
'91 Toyota Pickup
'09 Kawasaki KLR650
'12 Gunnar Rockhound 29
“Anyone who believes in indefinite growth in anything physical, on a physically finite planet, is either mad or an economist.” -- Kenneth E. Boulding