I have a china made 2400 watt MPP hybrid inverter (with embedded PWM charge controller). It has a default battery charging algorithm for Lead acid batteries (gel or AGM) but it doesn't have a charging algorithm for LiFePO4 batteries. I intend to procure new LiFePO4 batteries to replace my lead acid batteries in view of their inherent advantages (faster charging, lower density, higher cycle life, higher depth of discharge etc). I however am not planning to buy a new inverter. So, how can i configure the charging unit of my inverter to modify the charging parameters (charging current, charging voltage, charging time) for each of the stages of the 3-stage charging (bulk, absorption and float) charging algorithm?