Perhaps there is a solution out there, I haven't tried to find a solution. Up until others shared there experiences about it on this thread, I assumed It was a problem unique to my particular unit.

earthrealm:


hmmm na waoh, so no solution abi??
must be why epsolar omitted the kwh daily log from their devices, my itracer 60amps doesnt store daily logs in kwh, only stores snapshots of current harvest every 15mins

ojeysky:
Are all those cartons Battle Born batteries? If yes then you indeed must have entered this project with family money o. Looking forward to your experience, I think my GK MPPsolar series has capability to charge these batteries

Any PROGRAMMABLE Charger should be able to charge these with the proper setpoints

Saipro:

See? Now you've made him declare himself for what he is - a breathing, walking, talking power plant.

lolz bro,
my setup is still small in comparison to some others.
I like to think of it as a work in progress.

Saipro:


My current FLA USB L16 batteries are discharged from 6pm at 3.3A - 4.7A (C/40) and naturally show no performance degradation even though I push to C/10 at times during the day, no noticeable degradation yet (they're about clocking 10 months). They've only once been discharged below 80% (met it at 79% on a morning and yes, I check daily). Most days, I wake to 82% - 88%. Why do I bother, I've discovered I'm spending way more on RE than I ever did on diesel and petrol. True, there are numerous other benefits but it's about time I add economy to those benefits.

The leftovers from my Trojans T105-RE are still doing fine (say 90% of installed capacity) despite routine 50% discharge now.
My dad's USB L16 are still alive after 3.5 years of thorough abuse (60 - 80% discharge on at least 4 days of any given week).
FLA are a great pain but do well on cycle life above the current AGM, particularly some brands being touted as great.

If we could get GeorgeD1's Zenith types, even I would crossover to AGM in an instant.

I think it really depends on the brand of battery as you guys have stated.

Trojans would obviously be better than our previous GACIA, EPSOLAR and Mercury batteries. Though I really had high hopes for the Mercury, but maybe it was fake, who knows.

I guess were they are bought from is also a factor.

GeorgeD1:


lolz. this is serious work oh. especially on this occasion when I'm at the countryside catching
nature's cool breeze

anyway, I'll attempt to answer some if not all your inquiries. apologies if I'm not detailed
enough.

1. number of batteries: 12 nos, 12v, 260ah, totaling 780ah
2. total nos of panels: 48 nos (24units 315w solarworld, 24units 330w canadian solar)
3. total load: this is a bit tricky but I'll try. btw 2500w to 3500w
4. inverter make and capacity: magnum ms4348pe, 4,300w capacity @48v

Wow, soooooooo much solar power, my goodness!!!

I wonder if you still have MAINS electricity connected to your house, or are running solar/gen 24/7.

Im2Busy2Bother:


Thanks a lot. I love the number of solar panels. Thank you for taking out time to list 'em.

the plan to oversize was a deliberate attempt to beat south-south constantly cloudy weather.
thanks to zeestone for helping out with the first half of my array - 24 units solarworld. I was quite impressed with their professionalism.
juo and his team of experts came on board for the second half - 24 units canadian solar which was supplied at wholesale price by gennex early last year.
in all, a great team I was privileged to have crossed path with.

GeorgeD1:



lolz. this is serious work oh. especially on this occasion when I'm at the countryside catching
nature's cool breeze

anyway, I'll attempt to answer some if not all your inquiries. apologies if I'm not detailed
enough.

1. number of batteries: 12 nos, 12v, 260ah, totaling 780ah
2. total nos of panels: 48 nos (24units 315w solarworld, 24units 330w canadian solar)
3. total load: this is a bit tricky but I'll try. btw 2500w to 3500w
4. inverter make and capacity: magnum ms4348pe, 4,300w capacity @48v

Mehn...dis is huge. Oga george u suppose dey assist federal government by supplying power into the national grid as they appear hopeless

Installation almost complete, testing now!

Voltage drops, voltage drops everywhere.

Well all I can do is thank God. I checked the bmv and saw a max voltage of 60v to the battery. I was wondering how that could be possible when the inverter and charge controller were set for 14.2 volts. There is a huge difference in voltage reading between the charge controller and actual battery posts. For example, battery posts voltage could be 55.4v while controller voltage is 53V. So when the charge controller was set at 14.2, which is 56.8 absorb for a 48v system, the battery voltage would have been around 60v in accordance with the bmv. SO SCARY!!

The batteries do have internal protection circuits though, so it would have shut down the battery if that situation had gone on longer. I'm happy I caught it in time and I have made compensations to the controller setpoints. The batteries now charge at around 13.8V with solar and 14.4 with the inverter. Funny enough, the installer never caught this and according to him, it would have been job done and one year later, the batteries would have been severely overcharged. Two heads are better than one though, cause there are somethings he knew that I didn't know.

We are using 6 AWG cable between the charge controller and the battery, running a max so far of about 20amps. Anyway I guess the morale of the story is to check monitor actual battery voltage THROUGH OUT a charge cycle with the inverter and controller to make sure the peaks are within battery specs during initial installation. You don't want to trust those displays, get out your multimeter.

I have seen pics of some guys systems here were they leave an el cheapo digital voltmeter permanently attached to each battery. I truly believe that is the way to go for every one with a solar battery.

Next is changing out the DC wiring from 6AWG to 4/0AWG wiring for higher amp draw from these batteries.

ojeysky:


Will patronise them if indeed it's how dey charge. I have reached out to them waiting for their response.
Thanks

So I got a response back and it wasn't as claimed; I was asked to use the quotation URL at their website, but when I did, it was asking for a 55usd to ship a 9 pounds item.

who has the emanual of gennex inverter 48v 80amps 5kva, i nee am to check something

Capacity testing the BattleBorn 100amphour pack

Testing at C/5 rate, though the batteries claim to handle 1C discharge rate, but we don't have the cables now to accommodate a 100amp draw.

Very impressive from the battery thus far and the voltage was still very steady even after using 75ah of the available 100ah.

I didn't want to push the discharge all the way down to 100ah, I got scared

earthrealm:
who has the emanual of gennex inverter 48v 80amps 5kva, i nee am to check something

Seems this "Gennex" inverter is a rebranded inverter.

Found a similar generic type, check this link to see if they are indeed similar.


http://www.solarwholesale.co.za/Axpert%20MKS-MKS%20PLUS%201-5KVA%20Manual%20on%2020140306.pdf

NoMoreTrolling:


Seems this "Gennex" inverter is a rebranded inverter.

Found a similar generic type, check this link to see if they are indeed similar.


http://www.solarwholesale.co.za/Axpert%20MKS-MKS%20PLUS%201-5KVA%20Manual%20on%2020140306.pdf

MPP Solar Gennex and many others purchase inverters from Voltronic Power.Voltronic is publicly traded. You can sell your own inverters with your name and the will make it for you

NoMoreTrolling:
Very impressive from the battery thus far and the voltage was still very steady even after using 75ah of the available 100ah.

I didn't want to push the discharge all the way down to 100ah, I got scared

Impressive �

GeorgeD1:


the plan to oversize was a deliberate attempt to beat south-south constantly cloudy weather.
thanks to zeestone for helping out with the first half of my array - 24 units solarworld. I was quite impressed with their professionalism.
juo and his team of experts came on board for the second half - 24 units canadian solar which was supplied at wholesale price by gennex early last year.
in all, a great team I was privileged to have crossed path with.

We are glad to work with u boss, and also contribute to the walking, breathing and dancing(saipro abeg com help me here) power plant

Nosaghae:
If you have any need for uninterrupted power supply, Smartcell is the best answer.
You will get the best quality and warm customers service.
Delivery is very fast as well.
This is coming from a satisfied client.
Thank u Smartcell for delivering this Prag quickly

Thanks for the continuous patronage Sir ! We look forward transacting with you again ! Warmth regards

Wishing our numerous customers a Happy Easter Celebration .. May God bless you all !

chris81964:

MPP Solar Gennex and many others purchase inverters from Voltronic Power.Voltronic is publicly traded. You can sell your own inverters with your name and the will make it for you

CC: nomoretrolling

ok, tot as much, cos even ipower has similar infrastructure, have seen all the manuals, but none for gennex, theyare all same then.
i am trying to troubleshoot a setup of 8 batts and 1800w panels, that barely lasts 1hr on 450w load .. terrible
thinking of recommending 8 x 6v 400ah agm batts to owner for replacement, ie after finding the root cause of the catastrophic failure... instead of 8 x 12v 200ah quanta batts,
wetin una think?

earthrealm:

CC: nomoretrolling

ok, tot as much, cos even ipower has similar infrastructure, have seen all the manuals, but none for gennex, theyare all same then.
i am trying to troubleshoot a setup of 8 batts and 1800w panels, that barely lasts 1hr on 450w load .. terrible
thinking of recommending 8 x 6v 400ah agm batts to owner for replacement, ie after finding the root cause of the catastrophic failure... instead of 8 x 12v 200ah quanta batts,
wetin una think?

Bros jst do the one that works, if there is surplus funds u can try other options for us and giv us review

ojeysky:


It means it can't handle high voltage since it's 230v? There is also no prag servo at 10kva with 80v to 260v. I can't seem to find the 15kva servo of A&E at a friendly price so will settle for 10kva desktop

5 months into using this Servo stabilizer and I can say it's been fantastic! It's been performing beyond my expectations!

earthrealm:

CC: nomoretrolling

ok, tot as much, cos even ipower has similar infrastructure, have seen all the manuals, but none for gennex, theyare all same then.
i am trying to troubleshoot a setup of 8 batts and 1800w panels, that barely lasts 1hr on 450w load .. terrible
thinking of recommending 8 x 6v 400ah agm batts to owner for replacement, ie after finding the root cause of the catastrophic failure... instead of 8 x 12v 200ah quanta batts,
wetin una think?

How old are the batteries/ What voltage do your charge them to? What is the LBCO set to on the inverter? If all these are good revisit your wiring and then check the individual battery voltage to see if you have a bad one? Is the inverter controller a pwm or mppt? How is it wired? Are you in the pwm or mppt voltage range?

I have been having same issue with my 5kva 48v installation. I notice that after about a month of use, one battery of the the 4 batteries I use always get bad (low reading below 10v). I rotate them, replace with a good battery reading 13v and after a month, the same battery position still reads below 10v.

How can I overcome this please...

NB: I use full river 12v-200AH batteries 4 in series. I use a 4kw magnum inverter.

Thanks

chris81964:

How old are the batteries/ What voltage do your charge them to? What is the LBCO set to on the inverter? If all these are good revisit your wiring and then check the individual battery voltage to see if you have a bad one? Is the inverter controller a pwm or mppt? How is it wired? Are you in the pwm or mppt voltage range?

Its a gennex 5kva 48v with 80amps mppt inbuilt cc.
Thats why i was looking for the manual so i could understand the settings/config .
Would keep the house updated..am certain more than 1 batt is bad for it not to carry 450w load for 1hr.
Batts are a mess. First 4 is about 2yrs old.2nd 4 is about 5months old..wonder who advised them to mix such

earthrealm:


i am trying to troubleshoot a setup of 8 batts and 1800w panels, that barely lasts 1hr on 450w load .. terrible
thinking of recommending 8 x 6v 400ah agm batts to owner for replacement, ie after finding the root cause of the catastrophic failure... instead of 8 x 12v 200ah quanta batts,
wetin una think?

Judging by the load, I'd recommend they increase the number of solar panels. Also, as you already know, mixing old and new batteries will mostly not end well. As the batteries stand, I think some batteries had failed which had led to the abysmal performance. They would have been better off with just the four new batteries alone than those new ones been in parallel with the older failing (or failed) batteries.

CASHCOW247:
I have been having same issue with my 5kva 48v installation. I notice that after about a month of use, one battery of the the 4 batteries I use always get bad (low reading below 10v). I rotate them, replace with a good battery reading 13v and after a month, the same battery position still reads below 10v.

How can I overcome this please...

NB: I use full river 12v-200AH batteries 4 in series. I use a 4kw magnum inverter.

Thanks

Ehats the make of your inverter?..is it luminous?..or any of these old gen inverters
the old 1.4kva luminous had this notorious problem too. try installing a batt balancer to see if it helps

mctfopt:



Judging by the load, I'd recommend they increase the number of solar panels. Also, as you already know, mixing old and new batteries will mostly not end well. As the batteries stand, I think some batteries had failed which had led to the abysmal performance. They would have been better off with just the four new batteries alone than those new ones been in parallel with the older failing (or failed) batteries.

yeah, thats part of the plan, am even likely gonna suggest a standalone CC, as i saw 1.23kw instantenous harvest from the 1800w array on a cloudy dull day!!!..we all know this is impossible.
will do further extensive checks, now that i have the axpert manual. want to be sure of what exactly killed the bank, so its eliminated b4 laying down cash for new batts, cos even with mixing old and new batts, i dont think the failure should hv been that fast

earthrealm:


yeah, thats part of the plan, am even likely gonna suggest a standalone CC, as i saw 1.23kw instantenous harvest from the 1800w array on a cloudy dull day!!!..we all know this is impossible.
will do further extensive checks, now that i have the axpert manual. want to be sure of what exactly killed the bank, so its eliminated b4 laying down cash for new batts, cos even with mixing old and new batts, i dont think the failure should hv been that fast

Yeah, poor charging algorithm from the inverter may also hasten the demise of the batteries.

mctfopt:



Yeah, poor charging algorithm from the inverter may also hasten the demise of the batteries.

sure if wrong batt type was selected, or wrong user defined voltage setpoints was inputted, hence my search for the manual