Hi. I have a victron blue smart ip65 12/15 for charging and mppt 75/15 Now i have first a new lifepo4 battery. Which values must or should I enter in the charger? Can someone help me?
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Settings for lifepo4 with bluesmart ip65 and mppt 75/15
I would recommend to not load over 14V. That is already 3,5V per cell, that is enough for these LFP cells. So set Absorbtion voltage for both chargers to 14V. Floatvoltage could e.g. be 13,4V, that is a common floatvoltage of 3,35V per cell.
The current selection in the bluesmart IP65 charger could be 15A, depending on the time you have.
If you have more time, or both chargers are connected in parallel, then I would recommend to only select the 4A setting. Because it might happen, that both charges go to full load current, and that would be too much for your battery.
For most batteries the preset fits well.
If the datasheet says something else you should use that values or ask the battery manufacturer.
As Matthias already replied, I would leave the presets as they are. Put absorption to 1 hour and then it should be fine. Then observe the system and maybe you will adjust it one day if needed. ;-)
