Do not stress over this. The charger that ships with the '60R is a stupid, straight-charge one. NOT the best way to charge a NiMH pack. But if you just charge for an eight-hour period, you'll be OK. Some use those lamp timers so that they do not charge for longer periods.
WHEN to charge? You will get to know your radio, and when it will need charging. ALSO - see if turning down the power to 2W works for you in your situation/region. THAT will give you a lot more talk time between charged!
For manually programming the FT-60R, I have digested the 84-page owners manual into a one-page document. It is posted on the DOCS page at ...http://www.k6lcs.com
And while you're there, look at the "Work-Sat" site that is linked ... Many are using the FT-60R to work the amateur FM satellites!