Forum Discussion
Almot
May 23, 2021Explorer III
I warned that Epever manual is a pain. They don't explain what each parameter means.
I "think" Boost Reconnect (12.8 in my case) is when it resumes bulk/boost when battery drops below 12.9 Float when in use, or when it wakes up below 12.9 in the morning. Would love to hear other explanations before contacting the manufacturer (after their dreaded software the thought of emails in Chinglish scares me).
Charge-discharge curves: https://www.lynaclithium.com/wp-content/uploads/2020/10/12.8V-100Ah-True-Series-Quick-Sheet.pdf. (They assume 0.5C but my charging will be <0.2C and discharge <0.1C).
When bulk/boost hits 14.2, it goes to 12.9 Float, drops to 12.8 BR, resumes bulk/boost.
In the morning it wakes up at, say, 12.5 = 80% DOD, this is below BR 12.8 so it starts bulk/boost. So far so good.
OTH, if I manage keeping it at 12.9 = 45% DOD in the morning, it won't start charging at all - because it's above BR 12.8. Probably won't Float either because Float comes after Boost/Absorb 14.2, this is how other controllers work. My solar is 200W, draw 30-60 AH per 24 hours, a tight fit, don't want to waste any sun.
Maybe should raise BR higher - assuming BR means what I think it means.
I "think" Boost Reconnect (12.8 in my case) is when it resumes bulk/boost when battery drops below 12.9 Float when in use, or when it wakes up below 12.9 in the morning. Would love to hear other explanations before contacting the manufacturer (after their dreaded software the thought of emails in Chinglish scares me).
Charge-discharge curves: https://www.lynaclithium.com/wp-content/uploads/2020/10/12.8V-100Ah-True-Series-Quick-Sheet.pdf. (They assume 0.5C but my charging will be <0.2C and discharge <0.1C).
When bulk/boost hits 14.2, it goes to 12.9 Float, drops to 12.8 BR, resumes bulk/boost.
In the morning it wakes up at, say, 12.5 = 80% DOD, this is below BR 12.8 so it starts bulk/boost. So far so good.
OTH, if I manage keeping it at 12.9 = 45% DOD in the morning, it won't start charging at all - because it's above BR 12.8. Probably won't Float either because Float comes after Boost/Absorb 14.2, this is how other controllers work. My solar is 200W, draw 30-60 AH per 24 hours, a tight fit, don't want to waste any sun.
Maybe should raise BR higher - assuming BR means what I think it means.
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