Charging LFP battery from AC-DC unit
Tried to charge LFP from Meanwell se-200-15. Lynac Lithium 120AH battery marketed as 100AH, you discharge to 80% DOD and get 100AH. Was partially charged already, resting 13.1V. Battery manual sugg...
Forum Discussion
https://batteryuniversity.com/learn/article/charging_lithium_ion_batteries
Not clear where you are at, but Figure 3 might apply. You could be in a long Absorption Stage and you could be off in your SOC notions from using voltage instead of an AH counting meter. Just guessing though.
You might be getting along in the "flat" voltage curve and soon to finally see a spike in voltage if you keep going. Just guessing on that too.
One article (which LFP folks here liked or hated depending on their moods of the day) said if you charge at less than 14.6 that was ok; it just meant you got a longer Absorption Stage. Might be what you are seeing?
Charging with lower initial amps would not matter as long as your voltage was sufficient AFAIK--it just means it takes longer to get it done. LFP guys will have to confirm, but AFAIK there is no "minimum" charging rate such as with some (all?) AGMs in some situations
Not clear where you are at, but Figure 3 might apply. You could be in a long Absorption Stage and you could be off in your SOC notions from using voltage instead of an AH counting meter. Just guessing though.
You might be getting along in the "flat" voltage curve and soon to finally see a spike in voltage if you keep going. Just guessing on that too.
One article (which LFP folks here liked or hated depending on their moods of the day) said if you charge at less than 14.6 that was ok; it just meant you got a longer Absorption Stage. Might be what you are seeing?
Charging with lower initial amps would not matter as long as your voltage was sufficient AFAIK--it just means it takes longer to get it done. LFP guys will have to confirm, but AFAIK there is no "minimum" charging rate such as with some (all?) AGMs in some situations
