Actually, he needs a 67.2 output charger for 16s rc lipo. I'm pretty sure he doesn't have lifepo4. BTW, that should have read voltage divider, not diver. I'll fix it.
Guessing that what you have is a "60V" charger for LiFePO4. A "48V" LiFePO4 pack (which is not really 48 volts) is normally a 16s configuration and the chargers tend to put out between 59 and 60 volts (3.7-3.75 volts per cell). I've never had a "60v" LiFePO4 pack but would believe they come as a 20s configuration and the charger would put out in the neighborhood of 3.75 x 60 = 75 volts.