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  1. S

    BX / armored cable vs EMT connection

    Redoing my setup and got a 6x6 36” wireway to help clean up the connections to my sol-ark 12k. Thinking about reusing the original BX cable sheathing from the wireway to the inverter vs. buying EMT. Was searching the nec 2020 code and did not come across any call outs in not using BX but I...
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    Victron Mega Fuse 58v vs Littelfuse 58v cost difference?

    What am I missing here between these two fuses? The Victron is almost $30 for just one whereby the Littelfuse is under $5...?.? Victron 125a @ 58v Littelfuse 125a @ 58v Plan is to maybe use them in a hacked Victron Lynx Power In combiner.
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    Seplos Jassn busbar breaker box

    Thinking about ordering this breaker box but have found very little info/specs online. Aliexpress (Cheaper fromAlibaba when you order it direct from Seplos.) Has anyone bought one? What is the max cable size that would fit through the openings? Same question for the positive cables going into...
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    Batrium vs Seplos BMS ?

    Looking to expand my overall storage. Currently have a 2 x 2p16s (64 280ah cells for a total of 57kw) setup and leverage a Watchmon4 from Batrium for the past couple of years. Have had no issues but Batrium recently discontinued the the cell monitors that I use....so now i am starting to think...
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    Offgrid - Use Low and High frequency inverter?

    Hi - I can't remember where I saw the post on using a low and high frequency inverter for an offgrid setup but it seems like an unique approach to build a system. Does anyone use this setup successfully? Based on expected demands of an offgrid cabin I was thinking the following as an...
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    Offgrid Cabin - Growatt 5000es and Generator connection options

    Getting ready to help setup a 2 X Growatt 5000es system with 2 transformers. PV side will be sized to hopefully meet 100+% of needs but we still want a generator backup to power essential loads and charge the battery bank until solar can take over (500w-1kw loads and 3-4kw for charging). And for...
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    Liniotech Hybrid Inverter - DEYE clone

    New inverter I came across. Supposedly it is in stock in Texas. https://liniotech.com/liniotech-split-phase-max-12kva-pv-input-8kw-solar-inverter-hybrid-solar-power-system/ Manual attached
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    RayfromTX Gone..? Huh..?

    So I have been a follower of Ray and his posts and have learned a lot from him here and also when he started his YT channel. Not sure why he was banned but a number of DIY forum users frequent his YT channel also and asked the "why" he was booted, he mentioned that he was banned for spamming...
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    Sunsynk MAX 16 KW !

    Came across this announcement from Sunsunk. There version of DEYE that looks to be killer. https://www.sunsynk.org/post/sunsynk-max-16-000-watt-single-phase-hybrid
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    New inverter - dcbel

    Came across this today. Looks pretty cool for someone looking to intergrate EV charging / powering house. Appears to be an all in one with mppt controllers, battery charging, grid limiter plus 2 EV chargers. Spec. Sheet: https://www.dcbel.energy/wp-content/uploads/ossiaco-data-sheet-2021.pdf
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    Sol-Ark - Disconnect Strategy?

    I think I have ironed out a disconnect / safety strategy with my hybrid setup, Sol-Ark 12k. Goal is to trigger a relay via BMS (Batrium) when either cell voltage is too high, low or a single cell starts to fail based on relative voltage delta. Today my system is setup to do "grid zero" via...
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    Lifepo4 Cells (EVE,REPT,Lichen,etc) - Fire ? ..?

    Starting a poll and discussion for folks that have had a Lifepo4 cell fire be it from overcharge or an internal short or ??? After seeing what appears to be bad luck with @fhorst , who had two spontaneous and unexplained cells fires (within a year I believe) I think it would be good to know if...
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    Sol-Ark - Inverter Monitoring

    In short real-time monitoring is possible with the Sol-Ark! I decided to post a dedicated thread on this topic given the ongoing interest and research that has been done by some members. I am pointing folks to the resources that I used for the primary setup but will highlight the Sol-Ark...
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    280ah cells for $21 Grade C

    https://szluyuan.en.alibaba.com/product/1600248098726-818604541/Factory_Refurbished_Unmatched_Grade_C_EVE_3_2V_280AH_Lifepo4_Cells.html?spm=a2700.shop_plgr.41413.10.4edb1a4dyBwz0t Who is game to try these out..?
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    PSA - Double check your connections

    Just a friendly reminder to double check your busbar connections. I "thought" I did a decent job with my terminal connections, even bought and used a torque wrench to "ensure" I had a proper connection. It wasn't until this week that I noticed that one of my cells tended to drift higher than...
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    DEYE Inverter UL Listed available in US

    So for the past year or so I have research the Sol-Ark and it's relative, Sunsynk. From everything I read they are based on a class of DEYE inverters, essentially a rebranding with exclusive licensing since they are not sold/available in each other's countries. After many months of research and...
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    Battery Building Monitoring Seminar

    Some interesting details on building a commercial / residential system: https://www.nuvationenergy.com/resources/event/2020-Q3-plugvolt-nuvation-energy-storage-system-tutorial-series-register @Ampster
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    MidNite Solar / CBi Breaker Ratings

    Planning on expanding my PV array and the total voltage of the series based on VOC could be as high as 330v when "cloud edge effect" takes place. I use a MidNite breaker today (rebadged CBi), MIDEPV15-300, which is rated for 300v limit. Majority of the time the expected voltage will be in the...
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    Battery Bank Build - Deligreen 280AH EVE cells

    Hi - Thought I would share my experience so far and upcoming journey with purchasing cells from Deligreen on Alibaba and battery bank build: https://deligreen.en.alibaba.com/company_profile.html?spm=a2700.galleryofferlist.0.0.795718a8RAd0SV#top-nav-bar Deligreen: Main contact for me is April...
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    Nuvation BMS - A polished Chargery version?

    Hi - Has anyone heard of Nuvation? After a quick read I envision this is what a polished Chargery BMS should be. ;-) @Will Prowse I stumbled across this BMS system while reviewing IronEdison LifePO4 product line. They use a combination of this BMS along with the active balancer QNBBM to manage...
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    280ah - Shenzhen Youngpower Technology?

    Hi - Has anyone ordered from this company - Shenzhen Youngpower Technology? I received a quote of $77 per 280ah cell if I buy 64. Price includes busbars, shipping via sea to US is $800. This works out something like $107/kWH when you include shipping. Andy Chen is the primary contact that I...
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    Chargery BMS and CANBus

    I have come across a few threads on the Chargery BMS line with some posts mentioned the possibility of CANBus support via the RS485 port. My question is has anyone actually tried it with an inverter? Would you need an add on like this product from USRiot...
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    LifePO4 Battery Bank - Compression needed?

    New to LifePO4 world, still waiting on my first cells (32 280ah prismatic aluminum cells, 2p16s). My question is on the need for compression when constructing your battery bank. Appears there are many different approaches - no compression, electrical tape, single large hose clamp, top and...
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