Did you ever happen to try setting the battery type to custom user profile on the charge profile and plug in manual settings like here:
Recommended Charge Profile for DIY LiFePO4 Batteries Sticky Post
12V 4S LiFePO4 Battery w/ BMS: Absorption: 14.5V Float: 13.6V Inverter Cut-off: 10.7V-12V (depending on size of load and voltage drop etc) 24V 8S LiFePO4 Battery w/ BMS Absorption: 29V Float: 27.2V Inverter Cut-off: 21.4V-24V 48V 16S LiFePO4 Battery w/ BMS Absorption: 58V Float: 54.4V...
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or here:
Best LifePo4 charge controller settings known to man for Maximum Service life and Minimum battery stress!!! 5,000-10,000+ cycles?
---ORIGINAL TITLE---- Best charge controller settings to achieve 10%-90% usage on lifepo4 ? EDIT-UPDATE and the ANSWER to this question. . . This post is a accumulation of all the great and wonderful information given to me by all the great people on this thread. I consolidated all of this...
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The thing I wonder about setting it to lithium, is if it is trying to charge using battery comms (via CANbus or RS485) cable and not getting good communication received, or something weird like that.
Settings to custom user profile will allow it to charge based on voltages, comms are not really needed anyways.
I am not a Growatt enthusiast so my answer may be somewhat generic as I am not as familiar with working on those models, but just thought I'd throw in my quick suggestion for something to check or try as a test to see if you can improve the charging rate.
How does it perform on solar charging? Or do you have any solar attached?
