I just bought 2 SOK 12v 100ah batteries to use with my solar system. I read that the two batteries should be charged individually on initial hook up to balance them. I bought a AIMS converter/charger based on Will's recommendation that this is a good charger for lithium batteries. When I hooked one of the batteries to the charger with both switches set to "0" it goes to what appears to be float mode; solid green light and flashing yellow. I had the battery connected for about 3 hours and it didn't seem to increase the charge at all. both batteries are showing 13.2 volts. From what I understand I should get them to 14.2 volts before hooking them together in my system. I don't understand why the charger is not increasing the charge on the battery. Thanks!