I finished my setup and the LiFePO4 battery is charging fine but there seems to be one problem, the LED does not work?? What could be the problem, I tested the led before I soldered it in and it was fine then. Could it be the very low current draw probably not enough juice to power up the LED? or did I mess things up? My LED pins went like RED to Standby and Green to Charge. Or does the LED indication work only with ICR/IMR mode?
Current draw at input when checked with a USB doctor is 5.03V and 0.1A.
Did you use the supplied led or you own? If you used your own it could be the wrong polarity (That could also be the case with a supplied led, but that is less likely).