What is the max and recommended boost time i should use to charge my Lifepo4 battery. I currently have a 24V 100ah Redodo Lifepo4 battery running on my solar system. At first my mppt is charging in bulk/mppt mode after which it switches to boost mode when it reaches a certain voltage.
I currently have it set to 20mins for boost mode. I'm hoping i can push it to at least 1hr or 2hr. I have reduce the boost voltage to 27.4v because i don't want to charge up to 100%. I want to make 90% my max charge at all times to achieve a lot more cycles out of the battery.
Even thou i set the boost to 27.4v on my controller, it reach to 27.2v and then begins to display boost and basically stuck there and won't reach up to 27.4v so i am guessing is because the boost time is too low because after the 20mins it changes from boost to float and still remains at the 27.2v and i have no option of turning off the float mode. So i am assuming if i increase the boost time to a much longer time then it will evenutally reach up to 27.4v and remain at that voltage.
Please advised me on the best move forward. I am currently using the Renogy Rover 100amp mppt Li charge controller and i have it on the user mode settings where i can adjust the parameters.
Best regards,
Fabian