folks where do i best start to understand battery installation, equipment required, connection types etc?
we have an a3 house with an EV and heatpump, solar is on the list but not just yet, but if i could move most of our usage to night rate electricity it would help and probably save 800-1000 annually.
Does the invertor need to be connected to the main fuseboard for example? i have a shed with its own fuseboard run from the mains but assume i cant have the battery out there?
The data logger communicates over rs485. Possibly during the user defined the baud rate for the serial connection was changed inadvertently.
It seems to be often confused with the battery communication.
Baud rate for other coming across this is 9600 I think
Just to close this out my baud rate was wrong, solis support gave me the correct figure to use and the app came back online a few mins later. Have to say for €1400 including delivery the 16kwh deligreen is very good.
The inverter itself. Usually in voltage mode but can be done in the normal communication mode too depending on bms
What way / device does a 'good float charge'?
Depends on how well your torque calibrated arm is. Done all mine by feel, hand tight and a quarter turn.., (with lots of previous calibration of when rightly tightly becomes righty loosey)
Tool choice is key, you don't want to be using much more than a 1/4" rachet,
Multi meter, grab the uni-t one from AliExpress.
With the kits all having active balancers even just a good float charge at the start is enough to balance them out.
Nkon also do prebuilts too.
sorry yes. SOLIS. Typo. corrected now.
solis?
lads i got solar installed about 18 months ago. Happy with it, but only got 5kwh of batteries. How easy is it to add battery capacity? is it just plug & play? How much am i expecting to pay for another 5kwh of battery (new or a couple of years old)?
Have a SOLIS inverter if it makes any difference.
Fogstar seem to only be about €200 cheaper on the 16kWh DIY kit than the prebuilt. What do I need to beg, steal or borrow to setup the DIY kit? I'll need a torque wrench (or some way to check I'm not overtightening the cells).
And some power supply to 'Top Balance: Charge Slowly to 3.65V – Use a constant voltage power supply with a low current (≤10A). What sort of cost is that and where would I get it?
Anything else bar usual spanners and screwdrivers?
Can't find the info on their site. Ta
Have connected my battery and everything working well except I can’t see data in the solis app. It was there when I first connected the battery but once I did a user defined battery (battery name not in the list) I lost it. Has been gone for 24 hours now.
No issues charging if in the attic. Perhaps slightly slower on very cold nights, but hardly noticeable.
You can remedy this with a minor level of effort, some PIR insulation if outside…
My fogstar 16kwh Battery is located in my utility room for this very reason , Last night was freezing . I have a 3hr EV Window with Pinergy and 14kwh is added to my battery in less than 3hrs at a rate of 4.96kwh per hour !
The Dyness 5kw x 2 batteries on my new solar installation do not charge overnight on the cheaper rate as some nights are too cold. Only found this out from installer after the installation, tells me there is an update due on them to remedy this? Are all batteries the same?
Yeah, already decided to get it asap, it'll be in detached garage so not too worried about fire. I wonder if theyve had a run with their black Friday deal and trying to push some orders out
Don't bother. LFP cells don't combust. FS is a gimmick
Depending on cell size, about 140kg.
Got an email from fogstar asking if I want to hold off on the order to the end of February and get an updated V4 with fire suppression.
In two minds
I think some of the Fogstar stuff is due in this week, I ordered a couple of 280Ah cells for one of my Seplos and Victoria said they should be in by the 15th, not sure about the bigger stuff, mail them?
About 150KG!
It’s 16kWh.
Also, what weight is it?
What size is it ?
Anyone heard anything from the fogstar black Friday orders ?
Ordered 3rd December arrived today, back broken from getting it across the gravel drive. Will wait until the brothers in law are over to get her up the stairs. €1400 including free shipping from Poland.
I assume that question is for me.
The V4 kits have built in breakers, as seen in the video. The inline fuses for the 2 positives and 2 negatives are just cheap (useful) busbars. I already had the equipment, so it made sense to us it and was educational.
At my own property, I have 3 V3 kits which don't have internal breakers. I installed external breakers for each kit and an in-line fuse on the positive line near the inverter.
I have got a Huawei LUNA2000 system. I am looking at the following add on battery from this website. Anyone used this website?
https://panpower.eu/de/akumulatory-/6730-9364-huawei-luna2000-5-e0-5-kwh-batteriemodul.html Is this the correct battery for the original system? Whats involved in getting someone to fit it?
Would it not be better to have a fuse dedicated to each battery?
Have a look at this post ….also look at the posts just before it.
This way I was able to get a fuse on all 4 battery wires at reasonable cost.
I was not comfortable relying only on the each battery's in-built breaker. However some batteries do have a built in fuse along with the breaker (mine doesn't)
Why use Busbars and Fuses ? , Can they not connected directly to Inverter in a daisy chain ?
I've found that the daisy-chain method results in the battery closer to the inverter running down more quickly. I tried this method in my 3 battery V3 setup and my current hybrid chain-busbar setup to a lesser extent.
Wil you be adding a rectifier to that setup ?
No. 2 reasons.
Why use Busbars and Fuses ? , Can they not connected directly to Inverter in a daisy chain ? Wil you be adding a rectifier to that setup ?
