No problem
SRNE 12kW IP65 HES and 10kW ASP
- Thread starter 42OhmsPA
- Start date
In my opinion, build your own pack, 16 x 280AH or bigger LiFePo4 batteries.
In my setup I used an ANT BMS, 7-16s, 420amps continous, 1050 amps peak (I limited it to 280amps continous in the settings of the bms).
ANT SMART BMS 7S to 16S
This was the cheapest solution I was able to come up with for myself that can meet the power requirements of my inverter, 10Kw SRNE ASP.
I've tested it at close to 10Kw continous output and it works fine... In the end it is you choice on how to do it, depending on your skils, comfort level and budget.
In my setup I used an ANT BMS, 7-16s, 420amps continous, 1050 amps peak (I limited it to 280amps continous in the settings of the bms).
ANT SMART BMS 7S to 16S
This was the cheapest solution I was able to come up with for myself that can meet the power requirements of my inverter, 10Kw SRNE ASP.
I've tested it at close to 10Kw continous output and it works fine... In the end it is you choice on how to do it, depending on your skils, comfort level and budget.
You'll save a lot of money building your own battery
I confirmed with Borick - SRNE had received my purchase
I was given this SRNE Technical link after words. Not seen it posted before or maybe I missed it.
The link:
energy-for-all.notion.site
I've been busy converting my older 12 volt packs into a dedicated 48v nom pack with single jk bms. Slow going .reconditioning cells with ebc-a40... did you know pack prismatic cells were not isolated in these older 12v pack? Basically they are not really compressed either ...they have shrink wrap, strands of fiber glass tape, and a smal sponge bob foam square on each end.... so.... no real compression like ppl recommend now.
I am going to build slight - light compression into setup. Thread all 5/16-18 @ 36" is -$15 now that price is insane. Everything seems to be going up.
I bought from jenny wu doucan 280ah eve cells. Good price USA stock very fast ship from Jenny.. Cells from docan have been working well.
Gobel Power offers good deal almost went with them. Cell prices for building own battery is very affordable now. 18650 Battery Store is based and reputable they have cells with double post - they ran out - back order. There is also Battery Hookup which has good deals from time to time. These places get batches in and sell out quick. These are all usa based for stock shipments when they are stocked. free shipping for some.
I bought a diy box jk bms with 2a balancer put my 280ah cells in. Bought flex bus bars to allow cells some very small movement and not stress terminals. Total was around $2200. The box was pricey. Some of the diy preassembled boxes are top have prone try turn over dues to feet design. Elephant style should be avoided. Probably better make your own setup box. Eve cells recommend compression. I considered more 12volt pack canned that quickly...problematic with the cells out of balance. Considered rack battery but 1 was more then 280ah cells and the cells offered -2.5x-3x cap for money.
I was given this SRNE Technical link after words. Not seen it posted before or maybe I missed it.
The link:
SRNE Wiki | Notion
Welcome to SRNE Wiki ，We aim to provide you with high-quality technical support services to help you solve any problems about household solar system.
energy-for-all.notion.site
I've been busy converting my older 12 volt packs into a dedicated 48v nom pack with single jk bms. Slow going .reconditioning cells with ebc-a40... did you know pack prismatic cells were not isolated in these older 12v pack? Basically they are not really compressed either ...they have shrink wrap, strands of fiber glass tape, and a smal sponge bob foam square on each end.... so.... no real compression like ppl recommend now.
I am going to build slight - light compression into setup. Thread all 5/16-18 @ 36" is -$15 now that price is insane. Everything seems to be going up.
I bought from jenny wu doucan 280ah eve cells. Good price USA stock very fast ship from Jenny.. Cells from docan have been working well.
Gobel Power offers good deal almost went with them. Cell prices for building own battery is very affordable now. 18650 Battery Store is based and reputable they have cells with double post - they ran out - back order. There is also Battery Hookup which has good deals from time to time. These places get batches in and sell out quick. These are all usa based for stock shipments when they are stocked.
free shipping for some. I bought a diy box jk bms with 2a balancer put my 280ah cells in. Bought flex bus bars to allow cells some very small movement and not stress terminals. Total was around $2200. The box was pricey. Some of the diy preassembled boxes are top have prone try turn over dues to feet design. Elephant style should be avoided. Probably better make your own setup box. Eve cells recommend compression. I considered more 12volt pack canned that quickly...problematic with the cells out of balance. Considered rack battery but 1 was more then 280ah cells and the cells offered -2.5x-3x cap for money.
my SRNE single ASP inverter is 10k they have listing for 2 each 5000w for 10,000w total. Most post here are 10k not 2 each 5k .
Other post on here for the ASP single units being loaded..... 42OhmsPA pushed his ASF 10k inverter reported it did 75% imbalance. it is basically non parallel unit for my understanding different software most likely.
SRNE 20KW parallel ASP journey.
It just dawned on me it's going to take twice the time to hit the MWhs... Why? Or you mean just cuz you have two units and each will display half the total?
diysolarforum.com
I am waiting to see the 10k in parallel maxed all way out too. The 75% one leg is amazing. Read the EG4 6000xp can't do much of an imbalance. I would not think it wise to do that imbalance because of heat build up especially in summer time especially if not cooled for environment. Besides heat I have no reason to think they will not make full ratings do you for both legs being in balance conditions?
Doing parallel would allow less heat and less strain on them then single units. No? That parallel config has allowed 2 smaller gas generators to work in pairs to make CLEAN undistorted power easier.
When are you buying one? Can't sit on fence forever.
I will most likely never see but about half rating with mine. Run it at half load.Yes, I now own 3 of these. One is installed in my current pack and I'm still waiting for a shipment of an additional 32 x 280Ah cells to arrive.
I do not have it setup due to lack of time at the moment for communications with my inverter but the settigs in the BMS do have comms available if you wish. I plan on connecting it one of these days when time allows.
I found out by accident that the used lithium battery I bough over 2 years ago has an ANT bms in it. Bluetooth capable.
LITHIUM PROS M3265-36
I have it installed in my computers UPS. It's been running without gitches and problems for over 2 years continously.
Zwy
Emperor Of Solar
I confirmed with Borick - SRNE had received my purchase
View attachment 231049
I was given this SRNE Technical link after words. Not seen it posted before or maybe I missed it.
The link:
SRNE Wiki | Notion
Welcome to SRNE Wiki ，We aim to provide you with high-quality technical support services to help you solve any problems about household solar system.
I've been busy converting my older 12 volt packs into a dedicated 48v nom pack with single jk bms. Slow going .reconditioning cells with ebc-a40... did you know pack prismatic cells were not isolated in these older 12v pack? Basically they are not really compressed either ...they have shrink wrap, strands of fiber glass tape, and a smal sponge bob foam square on each end.... so.... no real compression like ppl recommend now.
I am going to build slight - light compression into setup. Thread all 5/16-18 @ 36" is -$15 now that price is insane. Everything seems to be going up.
I have Luyuan boxes with wheels and also build my own banks. Here is the way I do compression on cells in the large banks, I'm currently building a bank for the shop.
Luyuan box assembly here. I used JK 2A active balancing BMS's in Luyuan boxes and slowed charge to achieve top balance. The JK will balance while charging above 3.4V and when not charging until cells settle below 3.4V. I just simply turn the charger on until one cell hits the high voltage disconnect setting of 3.6V, then turn the charger off and let the balancer do it's thing. I repeat this until my cells are balanced with a delta of 0.010V or less at my system bulk charge setting of 56.5V.
Thanks
I kind of look at the boxes as a fire break ..if bad things go wrong and fire flames up..... tiny bit of extra chance to get out if catch on fire maybe smoke trips alarm but often times the smoke gets us too. Mixed bag.
Clean install and looks to be same jk bms as going in mine. I was originally going to use the existing heaters. I used the foam in latest box build DO NOT STICK IT TO CELLS just toss the foam pads in. Off Grid Garage Andy was sticking the foam and I kept wonder why then he would complain. Don't stick the foam no need. It is a pita to get off once stuck.
So why buy an additional balancer if active balancing is part of bms? This turned into waste of time
"Only then come back here and rant about inaccuracy of the Victron shunt." Failure to take the above advice will lead to user caused inaccuracy. You can not expect SOC to be accurate until you have all cells top balanced. AND you have told the shunt when to sync. Do you need me to draw it...
diysolarforum.com
There was no way was using those rigid bus bars with my battery setup. They are going to move settle.
Those new flex are about 2x the weight too. The new flex bars were $55 or so the others came with my docan EVE 280ah cells.
I used my 3048 and grid to charge it took 8+ hours with lot of pulling back on currents with the 3048 back to avoid thermal over loads it was screaming about 11.4k put into them as delivered then top balanced. Would have been at it for a lot longer other way. None of the battery companies put that much time into batteries my Electric bill took bigger hit too. Now added another solar panel string it top and settles nicely with charging from solar. The jk bms 2a balancer inverter setup is working nicely. My SRNE Inverter will be lucky to ever see 5k much less 10k thrown at it.
As you know around 3.5v+ is when the curve starts swinging up. I am running my new battery little different. I'm happy with it.
Compression values for EVE most ppl miss the part with and without. The without fixture is going to offer less. I think my old 12volt pack cells have some distortion.
You are 100% about parallel batteries drawing less and it is therefore safer not going to run as hot ..... same applies to generators and inverter and such. PPL get in trouble when expecting parallel safety devices like on individual battery banks to protect them for the inverter hook up which needs to have a fuse or breaker as stated by manufacturer just for it. 1 battery with protection is okay but parallel with protection not for inverter.
What I found for jk inverter comms.... worked for me so far
What is your experience with AliExpress?
Damn this thing took while get here. No manual in english. No software….in box … Not very global of the chinese to exclude other languages? I almost messed up got wrong cord vs 120 plug. No software either. I found them online from other sources. Hmmmmm over priced. The laptop...
diysolarforum.com
I'm not going back with the heaters. My original 12 volt cell packs had heaters. I am using Plywood for ends mild compression ....these old cells are already snafu. No more money is going into them... the all thread use to only cost a couple dollar but it was $15+ dollars now.
Getting pex for covers over thread all because it what I have on hand. The jk bms cost money too. Aluminum plate is expensive now. These old cells are not so good anymore - they never were sat in warehouse at 0 SOC for who knows how long. No doubt the heater functions had come on and dragged them down - drained. That made them not so good too. Doesn't make sense to throw good money after bad after a point. What guage wire did you use for the SRNE inverter to the AC breaker box? (I'm not doing a fancy parallel setup like you are) it looks like 6AWG would work., but I have about a 50 foot run so was thinking I would just use 4awg would be better. It's an off grid setup, and can never be grid tied. Ultimately I'll consult an electrician, but helpful to get an idea of materials costs in advance.
Is there any reason people don't use service entrance wire for this? (SER) such as this? https://www.homedepot.com/p/Southwire-500-ft-6-6-6-6-Gray-Stranded-AL-SER-Cable-13099715/202269840
Excerpt from home depot site for that wire:
"This SER cable features compact-stranded, aluminum-alloy conductors. "
Do not use aluminum wire in your setup, that's just asking for trouble...
Stick with stranded copper wire only. Solid copper may work as well, but it is a b*tch to pull thrugh conduits if it is larger awg.
As for type and size?
That will depend on your exact application... max voltage / max amperage / burried / non burried / 20 foot run / 1000 foot run...etc???
Only way I've found to be able to use 4 awg wire in our setup with the ASP inverter is to use the following:
4 AWG Non Insulated Pin Terminals, 13/16" Pin, UL Approved,
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