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Old 04-25-2023, 01:17 PM   #27
Foldbak
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Join Date: Jan 2022
Location: Shingle Springs
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M.O.C. #30417
Quote:
Originally Posted by Lee-CI View Post
Tony there are numerous parameters for your Victron MPPT that will need to be tailored to the specific LIFEPO4 batteries you decided upon. I'm pasting the parameters for our SOK batteries only as an example of the information you'll need to gather before updating new parameters for your specific batteries. Ron Ames has a SolarFlex FB page where one can learn a lot as well.
Example:
Battery Voltage: Set depending on system, normally 12v.
Max Charge Current: OK to set as high as desired, but no more than 50a per battery
Charger: Enabled
Battery Preset: User Defined
Expert Mode: ON
Absorption Voltage: 14.6v
Float Voltage: 13.8v
Equalization Voltage: 14.6v
Rebulk Voltage Offset: 0.40v
Absorption Duration: Fixed
Absorption Time: 15 Minutes (This allows for proper cell balancing)
Tail Current: Disabled
Equalize Current: 0% (For safety we don’t want equalization at all.)
Automatic Equalization: Disabled
Equalize Stop Mode: Automatic (On voltage)
Maximum Equalize duration: 0 Minutes
Manual equalization: DO NOT CLICK START
Temperature Compensation: Disabled
Low Temperature Cutoff: Disabled (unless you add a temp sensor, the BMS has this protection built in)

I'm learning as well, but PM me if you want to kick around ideas.
Thanks for this Lee! Appreciate it!
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Tony & Donna
2022 Montana HC, 295RL, Solar Flex 400, Onan 3600 LPG, 2K inverter, 200AH Lithium. 2020 GMC Denali 2500 6.6 Duramax, Demco 21K Auto Slide
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