Well I have taken a look at my batteries today and the cells are all within 1Mv of each other. I have just let them sit for the past couple of weeks with without any charging or discharging. As I said, I had a significant difference with one cell but never tested that cell with a meter to see...
Welcome Brian,
There are many on Ali express that will take your money and sell you duds and a few on Alibaba that will do the same. Probably the best thing to do is find the name of the seller and do a search on here to see if anyone has left positive reviews.
Take a look at Amy Wan from...
I use an EPEver Triron and I have no issues with it. Buy the Bluetooth module to go with it and set the App up on your phone and you can see all the data you require.
I have an EPEver Triron and dont have the documentation with me nor can I remember the settings i used but they will be the same as listed below.
On page 24 of the link below are the LifePO4 settings that you can use but double them as you are now using a 24v system...
I did see that you were also asking about compression somewhere but couldn’t reply to you. There are those for compression and those that can’t be bothered. I actually compressed mine at first then just simply clamped them up and taped them together before removing the clamps. At between 3000...
Set your charged setting on the Shunt to 14.6v.
Set absorb to 28.8v
Set Float to 27.6v
Put some serious current draw on your system like a 1000w heater, 3amps at 24v is just a trickle.
You seem to be overthinking the role of the BMS and what it actually does. It does not make the decision of...
Hi Wattmatters, yeah i been reading lots of your posts and you have built a beautiful system :). Have you looked at connecting into the grid or aren’t you allowed?
I purchased cells from China for my caravan so have 560Ah@12v, but have an itch to buy some more :unsure:. That of course means...
Your 100Ah battery has approximately 50Ah capacity so if your inverter remained switched on and as Mike says uses 1.5A per hour then in 24 hours that is 36Ah. That is what you need to replace each day plus any additional power you use. Although your panel can produce 16A under ideal conditions...
As I said…put the best fitting screw driver in and give it a good bang with a hammer. It is the same principle as removing the retaining screw on a vehicle brake drum.
But take a look at your screw driver ends to make sure that they aren’t chewed up. Looking at the bottom screw it is chewed up...
I could do the calculations for you but straight out you are talking about the weight of two adults and structurally your floor most certainly can take that. Without even looking at the stress grade of your floor joists at a 10 ft span they wouldn’t even have any spring in them let alone be...
The manual I showed you also does not have a dedicated setting for lithium batteries, this is because there are numerous types of lithium batteries which require different charge rates. Instead you have to choose the user setting and nominate the values listed under the correct lithium type...
Ok you have mixed things up a little between an inverter and a solar controller I believe your question relates to the solar controller. The link you supplied doesn‘t go to the product you are referencing.
Untill we can see the specifications for the controller we are unable to advise you...
Just did a quick check whilst the rain has stopped and no the reset did not correct the negative display issue. Will wait for the software update if ever they release one but I have always known that it was working.
Yes, but you still connecting to the positives even in the middle of the busbars. Think about which way the current to the BMS runs irrespective of whether your + of one cell is connected to the - of the next cell.
Just remember to take your busbars off to drill them as we don't want to see...
Lithium batteries do not require equalisation but under the user profile it is unable to be turned off so it is set to 14.6 or lower so it becomes like part of the absorption cycle.
At the bottom set absorption time to 0 mins.
Tim
Ha Ha Stuart I’m an ex Alway boy living in now, sunny at the moment Australia :cool:. You don’t need aircon there but I’m coming over in August so get rid of them clouds.
I do it and many others do it. It is not a problem as long as you set the parameters the same on each controller. You may get one controller shut off before the other but your battery will be very near fully charged.
So on a rough calculation your feedback to the grid would almost cover the daily standing charge. Therefore you only have to consider the amount of electricity you will consume from the grid and whether it is cost effective as opposed to the cost of buying batteries.
In my case it clearly isn’t.
Ok firstly that one cell is way over and showing 3.951v. You need to discharge that cell quickly or you will destroy it If you haven’t already. Unless you have a means of discharging the one cell then you need to discharge your battery and get that cell below 3.65v.
Looking back through your...
My understanding is it is all about efficiency in that if you use lower voltage panels with higher voltage panels then the lower voltage panels will drag down the voltage of the higher panels. Some people will do all they can to obtain the highest efficiency possible and other will accept a...
In relation to your solar panels the type of battery does not matter. Your controller matters in relation to the type of batteries and the voltage.
If your Rich solar controller is the one in the link below then yes you can use that instead of the Colman controller. Connect the controller to...
Just buy a mini controller as long as your battery isn’t Lithium.
It is exactly what I have for my boat. Just leave and forget.
Mini solar controller
Just don't buy from Australia lol.
Hi again Missoo.
Firstly stop worrying about the SOC shown on the BMS for the moment and lets get your battery sorted. Even if the SOC is showing 50% when it is at 95% the BMS isn’t going to use the SOC to regulate the maximum level of discharge as it uses voltage to do that.
Here are a link...
Don’t even think about buying it! Everything about the advert is wrong so buyer beware. Firstly as pointed out it says 4000W when it isn’t. The inverter is nowhere near the size a 4000W inverter needs to be. the cables shown to the inverter are nowhere near the size required for 4000W. The...
No need to apologise as it seems like you have enough on your plate. Hope it all works out for you.
I need to do some tests on the Daly BMS to see how much they drain the batteries and why they didn’t shut down when reaching low voltage. At 0.2A it will take forever on yours. As mine are...
HI Peter, welcome. I’m actually up at Bulimba at the moment, live at Corlette, Port Stephens and on my way to Port Douglas. I have built two 280Ah batteries each with a Daly BMS and have no issues For my caravan. There are recommendations of where to buy cells from on this forum but more than...
Agreed, except I stole some of the poly chopping boards from the kitchen which my wife is still looking for :ROFLMAO:.
The blue, green, red, yellow and white also add some colour and the board handles make great handles for my caravan batteries.
When you said you were looking at VoltX batteries and I saw your nic then I had a guess that you were. I think VoltX are only in Australia. I’m at Nelson Bay NSW.
Glad to see you got your battery going :).
Welcome,
I have just had a 9.9kW system installed with an 8.3Kw inverter, but I’m in sunny (supposed to be) Australia. Back visiting the UK in August.
First thing to consider is when you actually use the majority of your electricity because if you can use most of your electricity in daylight...
Settings seem ok but I have my differential set at 0.02v.
If your were charging when you posted that photo then why is the BMS allowing the battery to be charged if you have a differential of 0.074. You have indicated the balancing to commence at 3.4v but what are your cell settings to turn...
Yes ther are plenty of incentives to install solar here. I’m on a one year contract so I am able to change utility companies if I want to after that. Some of the companies offer plans to install solar for you but then you are tied to them for about 7 years.
The SOC is not an accurate measure of the actual state of charge. I have two real Daly BMS’s and mine are out significantly even though the voltages on each battery are the same. I can actually set the SOC on mine to whatever I like but really 1.3% difference in the SOC is nothing to worry...
Consider that solar blankets laid flat will produce about 50% of the rated power. Even tilted then you will struggle to get 80%.
Will take a look at the Victron for you.
Just came across this thread.
Australian Standards are not laws and are only enforceable when called up by legislation. In other words there has to be Acts or Regulations under Federal or State legislation that call them up then they become referenced documents and they can then be...
Welcome Louise, Sorry to hear about your long term Covid and I wish you a speedy recovery. What part of the UK are you? I’m originally from Newport South Wales. Winter will be hard for you especially with little sun so firstly you may wish to consider a backup power source like a generator...
Ok what you first need to look at is your power consumption as you want to run your fridge all week. Is it a 3 way fridge? What is the power consumption on 12v? i think it will be way more than your battery is capable of providing. it would be more economical to run it on gas.