Reaching out... New to DIY Solar, I've read many answers to help in getting me started etc. and what appears a popular question is regarding suitable Epever settings for Lifepo4 cells.. and so I hoped posting this message would provide me some support that would help get my setup settings close to right..
I'm living in Thailand and my recently put together setup that in most part works consists the following:
A single 545w solar panel (Trina -monocrystalline),
12volt (4 x 3.2v) 280Ahr Eve Lifepo Battery,
Epever Triron 40A MPPT controller,
Epever MT50 meter
Epever 3kw Inverter IP3000..
For the battery I have installed a BMS, type JBD 4s 12v 200A..
I use my set-up simply to provide a shared house power usage (i.e. switch OFF the authority power and ON solar power at around 9:00am in the morning and unless solar sinks too low I swap back to authority power at around 5:00pm evening)..
The house is small and loads naturally vary, but I often manage to get a reasonable few hours use..
My issue is with settings.. and the fact sometimes the controller seems to block charging (sunlight and PV volts is there, house load is on and battery is less than full but does not charge).. so, I'm not sure if it is my settings and importantly am I getting the best out of my cells with the settings I've used..
I can't yet get to grips with the process and terms of charge, boost, float etc. and the right cut off points to suit i.e.:
To start and allow continuous charge (with house load either on or off) until suitably full (say 80%)
or allow continuous discharge until empty (say 20%)..
So, understanding terminology and settings (what they mean/how they work with each other to charge and discharge) is as yet somewhat difficult to say the least and I'm naturally concerned with getting the best, longest term use from my cells...
I have set my BMS protection to (see attached): 13.400v (POVP), 3.345v (COVP), 11.800v (PUVP), 2.850v (CUVP)..
And I've set the Controller setting (set via my MT50) to:
USER, BAT '280AH', TEMP '0', OV DISC 14.8V, CHRG LIMIT 14.6V, OV REC 14,6V, EQUAL CHRG 14.2V, BOOST CHRG 14.2V, FLOAT CHRG 13.6V, BOOST REC 13.2V, LOW VOLTS REC 12.8V, UNDER VOLTS REC 12.2V, UNDERVOLTS WARN 12.0V, LOW VOLTS DIS 11.1V, DISCHARGE LIMIT 11.0V, EQUALISE TIME '0' MIN, BOOST TIME 10 MIN..
I do understand there are many posts and Videos to watched I have watched/read quite a few to get where I'm at, but I was hoping someone could review my setting and comment with any suggested improvements (and ideally why).. but any positive response would be much appreciated.. Terry. M
I'm living in Thailand and my recently put together setup that in most part works consists the following:
A single 545w solar panel (Trina -monocrystalline),
12volt (4 x 3.2v) 280Ahr Eve Lifepo Battery,
Epever Triron 40A MPPT controller,
Epever MT50 meter
Epever 3kw Inverter IP3000..
For the battery I have installed a BMS, type JBD 4s 12v 200A..
I use my set-up simply to provide a shared house power usage (i.e. switch OFF the authority power and ON solar power at around 9:00am in the morning and unless solar sinks too low I swap back to authority power at around 5:00pm evening)..
The house is small and loads naturally vary, but I often manage to get a reasonable few hours use..
My issue is with settings.. and the fact sometimes the controller seems to block charging (sunlight and PV volts is there, house load is on and battery is less than full but does not charge).. so, I'm not sure if it is my settings and importantly am I getting the best out of my cells with the settings I've used..
I can't yet get to grips with the process and terms of charge, boost, float etc. and the right cut off points to suit i.e.:
To start and allow continuous charge (with house load either on or off) until suitably full (say 80%)
or allow continuous discharge until empty (say 20%)..
So, understanding terminology and settings (what they mean/how they work with each other to charge and discharge) is as yet somewhat difficult to say the least and I'm naturally concerned with getting the best, longest term use from my cells...
I have set my BMS protection to (see attached): 13.400v (POVP), 3.345v (COVP), 11.800v (PUVP), 2.850v (CUVP)..
And I've set the Controller setting (set via my MT50) to:
USER, BAT '280AH', TEMP '0', OV DISC 14.8V, CHRG LIMIT 14.6V, OV REC 14,6V, EQUAL CHRG 14.2V, BOOST CHRG 14.2V, FLOAT CHRG 13.6V, BOOST REC 13.2V, LOW VOLTS REC 12.8V, UNDER VOLTS REC 12.2V, UNDERVOLTS WARN 12.0V, LOW VOLTS DIS 11.1V, DISCHARGE LIMIT 11.0V, EQUALISE TIME '0' MIN, BOOST TIME 10 MIN..
I do understand there are many posts and Videos to watched I have watched/read quite a few to get where I'm at, but I was hoping someone could review my setting and comment with any suggested improvements (and ideally why).. but any positive response would be much appreciated.. Terry. M