It's balancing away now.
You were absolutely correct.
Closer study found that one cell would trigger the over voltage protection even at conservative overall charge voltages, so the extreme settings were needed to slowly reach the BMS balancing voltage without overwhelming it.
I think my...
I do appreciate what you are doing, and understand that you have more to do than post here.
Can we see some uses with the grid passing through? I'd really like to see PV and grid and the effect they have on the loads.
If you will show us 120 loads with PV and grid input with no current trying...
If you are open to pre-built and/or server rack batteries, I would buy SOK from Current Connected without hesitation.
Ian from watts247.com also has them, and had a sale going. Ian has a good reputation here.
Since you are running on a generator, I might call both to see which one would...
I'm glad you posted this.
I had no idea thermal scopes could focus down to distance practical for electrical inspection.
However, they do!
The zoom is a little annoying, and there is no estimated temperature reading, but it works incredibly well. I mounted mine on a tripod to make the...
Test on discharge to see if one of the same runners becomes the first to nosedive. If so you likely have a bad cell.
Mine actually turned out to be a bad cell, and Jakiper sent me a replacement along with an individual cell charger to match the new to old state of charge. Something to keep in...
Will there be a 25 Amp version to swap in any sort of reasonable time frame?
I'd rather you keep the money and get what I ordered vs return the one I have and start shopping again.
It is a "Lv yuan lian" charger.
110 plug on one side, small pos/neg alligator clips on the other.
Model#: H10980150W
Input: 110V-220V 50-60 Hz
Output: 3.65V/6A
I've never seen or heard of it before. I do not seem to have died or exploded anything from my limited use of it, but it isn't...
Hi Richard,
I received an email offering a partial refund or return, stating 25A units are not available.
Are the 25A units gone forever, or will there be a 25A unit available later?
I'd rather wait if possible, instead of a partial refund or a return to re-start the shopping process - I...
The ones on Amazon that look exactly the same are rated at 20 amps max.
Mine from SS has produced 17-18 amps maximum on a 50% battery with nothing else connected.
It's situational - the only advantage of the bottom balance that I know of is that it is easier to add power than to get rid of it.
The charger I used sends 6 amps to the cell, I don't remember the dissipation for the Jakiper BMS, but I think it was 0.6 amp.
Having said that, if you have one...
Hi Eggo,
I think assistants will be the way to go eventually – after I have a better understanding of them.
My use case is as follows:
Primarily critical system backup. I am in a rural area at the end of a line. Anything that happens affects us, and with the low population, we are low...
If they are actually balanced then I think you've been lucky, and I am not sure how much longer your luck will last with that.
Keep in mind that in the 40%-80% range, you are in the REALLY flat part of the voltage curve, and the cells can be considerably out of balance with very little...
Are these rated for continuous use that would be seen in bad weather?
E.G. - would these be able to keep a bank charged (possibly multiple paralleled) if there were a 5-10 days of cloudy/rainy weather?
How many reprograms is too many?
Using the VE Configure software, are these settings being written to a flash memory that will degrade over time?
Specifically, Is having multiple configurations for different weather conditions with frequent changes going to be bad long term?
There was a large spread at peak voltage. 3364Mv to 3515Mv.
I have set the absorption and float as suggested and will update after a couple of weeks if I can remember to do so.
It has recorded over-voltage protection, but they all have. I thought that was from balancing? I have looked but not noticed an extreme voltage when nearing the top of the charge.
Chargers include a Victron MultiPlus set for LiFePo4 batteries and the signature Solar charger.
I THINK I saw...
Hi all,
I'm looking for help with component selection. I am in the US, and have our typical split phase power. I tried specing out a system myself, but became overwhelmed with the differences and options, particularly when looking to the future for expansion. Is this the right place to ask...
"If you have any worries or doubts about the product or safety, please heed caution as necessary"
What??
I assume you mean buyers are on their own, and should consult with an electrician or engineer about wiring. Which is great and all, but then again, YOU MODIFY THE INTERNALS WITHOUT TELLING...
"voltages between 3.3 and 3.37V"
I went through this too.
The thing I had to learn coming from lead acid batteries, is that relatively minor differences in voltage - particularly in the range you have described - can mean that the cells are in very different states of charge.
If you are...
One of my Jakiper batteries now indicates 93.0 amp hours instead of 102.9 on the LCD display.
I have not checked any further than this.
Did I really lose ~10 amp hours - or do I need to do a reset, or something else?
There are 10 cycle on the battery at this point.
Hi Richard,
I'm sorry for the tone. There are safety concerns here though; and I will also try to be more specific.
Can you answer the solder flow concerns brought up in this thread (potential solder flow to the backside of the PCB) that may lead to a charged case?
I understand that you are...
Thank you for your help.
I will get them fully charged and look at the voltages.
The Multiplus is currently set to Victron defaults - 56.8V absorption, 54.0V float and 1 hour absorption time every 7 days.
Assuming they are different, do you have suggestions for absorption/float voltage and...
This may be the answer:
https://shaneyake.blogspot.com/2022/09/victron-disconnect-inverter-from-grid.html
I was/am hesitant to just short the Aux wires together, but it looks like that is the way to do it.
I have a Signature Solar 5000 ES powering a single mini-split and charging a battery bank that has been in service since early summer. A recent new development is that it requires a complete shutdown (removal of AC, solar, and battery connections) to re-train the MPPT.
The MPPT gets stupid...