Search results

Hello. Reaching out to learn more about AC coupling with my existing Solark 12k system. I have a 10kw solar array being controlled by a Solark 12k (wish the 15k was available 3 years ago). I re-wired my home electrical to have all my 120v loads powered by the Solark 50A critical load breaker...

Trying to skimp and save the expense of a larger charge controller. As someone suggested, perhaps I should pickup a Classic 150 or FM80 and use 2 longi's facing East and 2 facing west (lined up with the existing small old panels). The extra power in the summer would be put to good use and...

Thanks for all the replies. I'll stick with the plan to add an additional charge controller and pannels. Since I have an extra Midnite Kid laying around, I will try that first and see if it provides what I need this Winter. Since the Kid only handles 30A, on a 24v system, I believe I can only...

Hello all. I have a small system for an offgrid cabin. Currently consists of a Magnum inverter ( MS402PAE), two Midnite Kid charge controllers (30A), a 750 watt East facing array, a 750 watt West facing array, DIY built 24v 360AH LifePO4 battery bank (the replacement battery is my doing...

Hello all. I'm attempting to install a solar pool pump and a solar well pump. Both pumps have identical DC input specifications and use a similar controller.

Hello all. I'm attempting to install a solar pool pump and a solar well pump. Both pumps have identical DC input specifications and use a similar controller. What I want to do is utilize the same solar source (say 2KW array) and have the pool pump run continuously when the sun is out except...

Thank you for the help. I'm excited to get this working. Still having communication issues between the solark and SH-U11f. I will post over on the repo. Ultimately, I will be plugging the SH-U11f in a TP link ac1750 running Openwrt (wired bridge) and mbusd. The ac1750 access point is next...

Hello. I have been stumbling around attempting to get a mdusd connection to my Solark 12K and ultimately utilizing the Home Assistant integration to read and display the data. Mainly following the information provide from this link https://github.com/pbix/HA-solark-PV As recommended from the...

Thanks again. The explanation helps. I did not see a menu option to Autostart the Generator, so assumed if the Gen Charge was selected (in Batt Setup) the autostart relay would automatically close when the start charging parameters were hit (regardless if connected to an autostart gen or not)...

Hmm Good to know. I guess I was trying to figure the differences Carlos was explaining between autostart Gen and manual start Gen. That is auto start opened the internal Gen breaker and manual start did not. Hence creating a possible back feed when AC coupled when auto start was not used.

Thanks for the above, definitely helps understanding the Solark software logic. Just a few more questions: I think I got it. I suppose if I did not have auto start generator, one could hook a 12 volt source up to the gen start pins on the Solark. When the software called for a Gen Start the...

Currently I running a 10kw 200ah Fortress battery. Would it be possible to add more similar batteries (I.e., 30 kw server rack) in parallel with the Fortress? Seems like this would work but not sure how to split the charging run from the Solark Perhaps a distribution block.

Thank you Ampster. Good information. Both MPPTs on my Solark are being used and cannot be added to. A new array with Micro-inverters for the AC couple may be the best method. I was getting greedy with the abundance of low cost hybrid Inverters that I did not know existed until recently...

Hello all. Ended up on this thread as I have a very similar question/issue (want to use AC coupling with my Solark 12k grid tied and have generator backup). The goal is to add capacity that I can sell and store in more batteries. I currently have my 8kw generator connected to the Gen Input...

Thanks. I suppose I will try to set the low voltage cutoff on the Magnum inverter higher than the BMS value. Any suggestion what this delta should be for a 24volt lipe04 battery?

Need some help figuring out the Overkill BMS and Midnite charge controller. I seem to lose the ability to solar charge the Lifep04 pack once the Overkill BMS low cell voltage trips. I need the ability to have the system to start charging once the solar power comes available. As the system is...

It has been a while since I last posted on this thread. I have my new battery in service but running into another challenge that I would assume others have solved. The system consist of a 24 volt Magnum Energy inverter with the remote panel, and two individual Midnite mini charge controllers...

One step at a time. Slowly getting there. Not without my share of issues. Followed the the instructions from the bms-main folder with other google searches and installed telgraf, influxdb, and granfana. I seem to have it all running. At least reading data and building a database. Still...

Thanks. Getting closer. Discovering one issue at a time. See below. Does this look partially correct? Next step? pi@raspberrypi:~/Downloads/bms-main $ python jbdbms-8-socket.py -b A4:C1:38:88:59:5E -i 10 -m jbdbmscd attempting to connect connected A4:C1:38:88:59:5E Error creating...

Followed the instructions and installed bluepy on the pi3. I believed it installed correctly. The command "sudo blescan" resulted in the following: Device (new): a4:c1:38:88:59:5e (public), -72 dBm Flags: <06> Incomplete 16b Services: <0000ff00-0000-1000-8000-00805f9b34fb>...

Thanks. I got Python3.9 installed and attempted to run the script. Closer perhaps, but still no success. Following error message: pi@raspberrypi:~/Downloads/bms-main $ python3.9 jbdbms-8-socket.py -b A4:C1:38:88:59:5E -i 10 -m jbdbms Traceback (most recent call last): File...

Great thread. Much learning to do but I see a path, just need some help getting started. My solar batteries/jbd bms(s) (8s2p) are remote and I have a pi3 connected to a cellular modem so that I have vnc and ssh access from anywhere. Pi is running raspian buster. (have not updated python from...

Struggling to get jbdtool to work on a linux box. As my linux knowledge is limited to cut and paste commands, I'm not sure what I'm doing incorrectly. I have compiled and installed gattlib and phao.mqtt.c (I think successfully). However, when I use the "make" command, from within the...

It is always the same pack. I swapped the connections and nothing changed. I also did my best to move the "aggregation" point to be equal from each pack.

I took the suggestions, eliminated the 200 amp anl fuse between the disco, used a much heavier copper buss bar (1/4" x 3/4"). Keeping the other two 100 amp ANL fuses at this time. May upgrade to T fuses down the road. Ran a 115 amp test load for 15 minutes - the 2 awg wires got warm as did...

Ok, I took a few more readings and I did note that the battery closest the system feed does have higher amp draw. However, under 1kW load the differential is very small (less than .5 amps). I also found as I increase the load, the differential increases. Pulling a 2.2kW load, the...

Both packs have a 12" long 4 gage wire running to the individual 100 amp ANL fuse blocks. Both packs are identical 8S configuration. Negative at cell no. 1, positive at cell no. 8. So, I would say both packs are equal distance from the busbar. The only difference, is a slightly...

Reporting back progress. I took everything apart and re-assembled, making sure all connections were clean and torque to the same value. In the un-assembly, nothing was obviously wrong. However, when testing after the re-assembly - a 1kW then a 2kW load through the inverter, all cells behaved...

The cells were balanced using a DC variable power supply (amazon https://www.amazon.com/gp/product/B082HXVRNF/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1 I balanced 8 in parallel at a time to 3.65 volts. Waited until amps were close to 0. After each 8 were balanced, I then connected all...

Hello. I'm starting a new thread to seek assistance with troubleshooting and build advice on my new 24v 8s 2p build. I'll first explain the components and then get into some of the issues I'm having during testing. It will become evident very quickly that this is my first time building a...

Revisiting this thread as I completed my build, top balanced and now testing capacity. This is a 8s2p build with dual BMSs. During testing, I realized I must have had a bad bms connection on one of the batteries (low voltage indicated on the bms application). I had issues initially with bad...

I noticed the above diagram is exactly what I will be attempting with my fob 16 180ah cells (8S 2P double bms’s). I did notice a few discrepancies from what I hade planned. The parallel positive connections to the buss bar (from each of the 2Ps), I was going to use the 4 gauge with a 100 amp...

Sorry for the double post. I added to an old thread and did not get a response. I just joined the forum and quickly found my answer regarding a 24v 16cell LifeP04. Confirmed my design and decision to wire up two separate 24volt batteries with two BMSs. Quick question, currently I'm using a...

Hello. Just joined the forum and quickly found my answer regarding a 24v 16cell LifeP04. The above diagram confirmed my design and decision to wire up two separate 24volt batteries with two BMSs. Quick question, currently I'm using a 24v inverter but have plans to upgrade to a 48v down the...