I am using the bq24650 charger chip for a lead acid agm battery. in my design I am hoping to use a 100Ah battery 12v and I am having trouble figuring out the max charge current which is the first step in designing the rest of the external circuitry for the charger. on pg 5 0f 7 on the application note for this chip which is titled "using the bq24650 to charge a sealed lead acid battery" under design example the application note says that it is usually recommended that max charge current during cc charging is typically found by multiplying 0.1--0.3 the max battery current. in my case since I am trying to use a 100Ah battery then 100 x 0.3 would be 30A max charging current during cc charge. once I set my sense resistor which is said to be 40mv / max charge current during cc charge which is 30A I would have a 1.3milli ohm sense resistor this equation is found on pg 13 of the manuel.
So first of all can the bq24650 even support 30A do I need to find a smaller battery, and second of all will a .00133 sense resistor even do anything in this application. I was under the impression that since this supply voltage is coming from a dc alternative energy source that the amount of energy produced would take into affect the amount of current produced by my wind turbine which I definitely am not producing 30A of current. where am I going wrong here.
