i'm trying to charge a 5Ah single cell li-ion battery using bq24090 charger controller (up to 1A fast charge current) in parallel with a current boosting circuit. Overall controller should supply fast charge current at 0.5C rate(2.5A), theoretically. Which idea does make sense if i try to charge 4 of these li-ion batteries?
option 1: using 4 distinct charger controller as described for each one of the batteries
option 2: using single more advanced charger controller such as bq24600 (up to 10A fast charge current) and supplying 4 parallel batteries from that single output of the controller.