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How to Build an EG4 30 kWh LiFePO4 Server Rack Battery

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How to Build an EG4 30 kWh LiFePO4 Server Rack Battery



Server Rack Battery Parts List (affiliate links):
Budget LiFePO4 Server Battery: https://signaturesolar.com/eg4-lifepower4-lithium-battery-48v-100ah/?ref=cPwLcVc0SW-BjN
Server Rack: https://signaturesolar.com/eg4-battery-rack-6-slot/?ref=cPwLcVc0SW-BjN
DIY System Blueprints: https://www.mobile-solarpower.com/48v-all-in-one-buyers-guide.html
EG46500EX: https://signaturesolar.com/eg4-6-5k-off-grid-inverter-6500ex-48/?ref=cPwLcVc0SW-BjN
DC Clamp Meter: https://amzn.to/39Pptdg

0:00 Initial Assembly
0:58 Connection Check And Power Up
1:40 Connecting to Solar Power System
2:49 Pre-Charge Circuit Procedure
4:14 Current Test
6:05 Conclusion

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12V/48V Lithium Solar Batteries: https://www.mobile-solarpower.com/solar-batteries.html

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Complete Solar System Component Directory: https://www.mobile-solarpower.com/solarcomponents.html

Complete 48V System Blueprint: https://www.mobile-solarpower.com/48v-complete-system-blueprint.html

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*Signature Solar*
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*Contact Information:*
I am NOT available for personal solar system consult! If you wish to contact me, this is my direct email: williamprowsediysolar@gmail.com

Join the forum at https://diysolarforum.com/ if you wish to hang out with myself and others and talk about solar

*FTC Disclosure Statement and Disclaimers:*
Every video includes some form of paid promotion or sponsorship. Some links on this youtube channel may be affiliate links. We may get paid if you buy something or take an action after clicking one of these. My videos are for educational purposes only. Information is subject to change/update at any time. Electricity is DANGEROUS and can kill. Be smart and use common sense 🙂

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49 Comments

49 Comments

  1. @tangocharlie9291

    October 19, 2024 at 10:16 pm

    How many solar panels / how much wattage (?) can this system use?

  2. @jackjetpilot

    October 19, 2024 at 10:16 pm

    6:06 Is there a video on setting up communications somewhere?

  3. @anilgargsfo

    October 19, 2024 at 10:16 pm

    Can these be hooked to Sunnyboy Storage which takes in 320~451 VDC from a BYD H-10.2 battery. These can be put in series to get to a 300VDC mark. The startup voltage for the Sunny Boy Storage is 100V DC and max 10a current but it is rated to accept input range of 100 V – 550 V DC.

  4. @thermalman

    October 19, 2024 at 10:16 pm

    Does anyone know if these are permitted on a grid-tied system in California?

  5. @moleisrich1

    October 19, 2024 at 10:16 pm

    Can’t stop watching. Don’t even have a solar anything. But I hooked up two 5ton mr cools and am wondering how I figure out what they draw. A clamp meter?

  6. @gorillamotors

    October 19, 2024 at 10:16 pm

    How much do each of those batteries weigh?

  7. @frankripley5188

    October 19, 2024 at 10:16 pm

    About 9k…I sure can't afford this.

  8. @Depression2010

    October 19, 2024 at 10:16 pm

    What are your suggestions for how to incorporate battery storage with solar system that has IQ8 micro-inverters and is grid connected?

  9. @mine0002

    October 19, 2024 at 10:16 pm

    If I have 3 6500w inverters and 3 48v batt cabinets how would you suggest connecting the batteries and inverters so each inverter could utilize the entire 3 cabinet batt system?

  10. @ilanbouy

    October 19, 2024 at 10:16 pm

    Hey man do you purchase all the batteries or do you get them donated

  11. @Ro-Bucks

    October 19, 2024 at 10:16 pm

    If them bus bars are big enough and they have a good BMS setup then putting the nagative and positive on opposite ends didn't realy do much. Reson why is the entire bus bar would be equaly charged across the entire bar.

  12. @KarlozGM

    October 19, 2024 at 10:16 pm

    Can you use this for an electric vehicle or what do you recomend for that? Excellent video by the way 😀

  13. @tule-hz5mj

    October 19, 2024 at 10:16 pm

    Hi, just a simple question : If the battery is full, does battery disconnect itself or inverter does , then where the extra solar power would go to?

  14. @jimmybrowder

    October 19, 2024 at 10:16 pm

    Will thanx for your great training. I bought and installed 2nd eg4 life power. Thus morning I turned on signature solars 48 v charger to recharge them but for 3 hours red light flashes. Was all full charged yesterday and OK. Any ideas?

  15. @robo2901

    October 19, 2024 at 10:16 pm

    Do you use a manual or automatic transfer switch to remove your house battery backup system from the grid in the event of power outage? Anyone have any recommendation for this?

  16. @granthendricks1046

    October 19, 2024 at 10:16 pm

    At first, I did not like Will's style, and not the content. Will's clear and neat wires. However, when Will demonstated used hospital batteries with 92% of their capacity left, I really took notice, as I realised the true value of buying used batteries and his tests for battery capacity.

  17. @edwardmorales1025

    October 19, 2024 at 10:16 pm

    How long can i store these before i actually use them?

  18. @this-is-slammin-549

    October 19, 2024 at 10:16 pm

    Anyone know why Will has no interest in Dakota Lithium?

  19. @MakeItAdmirable

    October 19, 2024 at 10:16 pm

    What gauge are the wires from the battery to the bus bar?

  20. @russellscoville520

    October 19, 2024 at 10:16 pm

    I have this same battery rack will it communicate with sol ark 15k

  21. @KenSchwartz-i3s

    October 19, 2024 at 10:16 pm

    You've got some great videos!

    But I'd like you and everyone to know, I just paid $16,123.21 to SIGNATURE SOLAR 903-4412090 TX on 07/10/23 for EG4-LL Lithium Batteries Kit (V2) | 30.72kWh with 6 Server Rack Batteries with Pre-Assembled Enclosed Rack with Door & Wheels and the EG4 18KPV Hybrid Inverter. The next day, 07/11/23, I drove to Texas from Florida to save on shipping to pick these up after they notified me it would be ready for pickup. When I got there, after making an appointment to pick them up an having to be there within a 15-minute time period or they canceled your appointment, they notified me they did not have the rack because they were having trouble with the maker and the welding. They are selling batteries and the rack, without the rack!!! This does no good because you can't install the batteries without the rack. I'm waiting for the rack and my warranties are running out. They told me they would send me the rack, but they have no idea when. You can't build a system without the rack!!! But they are selling them and not telling you they don't have the racks because they charge $10,119.00 for the set. If you look on their website, you'll see some items listed as "Out of Stock", but not the racks because this too much money to lose. BUYER BEWARE!

    Will, I noticed on one of your videos that you commented that you are still waiting and don't have a door on your rack from SIGNATURE SOLAR.

  22. @jam206AR

    October 19, 2024 at 10:16 pm

    Ok I know I want this. But don’t really know what ur talking about. Are there people to help you do this?

  23. @DavidWilliams-xq7jt

    October 19, 2024 at 10:16 pm

    I'm about to install these batteries in a garage that is not climate controlled in texas that get ove 100 degrees on the regular. The manual says they are good up to 90. Will this be a problem?

  24. @EasonLuan

    October 19, 2024 at 10:16 pm

    Topband Rackmounted battery is wonderful, which has good battery performance and no problem, I will recommend my friends to buy it.

  25. @maddhatter3564

    October 19, 2024 at 10:16 pm

    I even wire diagonal on my lead acid bank

  26. @robert4027

    October 19, 2024 at 10:16 pm

    My home uses about 90 kwh monthly. . no need for such a massive battery Bank system here thankfully ..so yeah this was not helpful video for me

  27. @lapinfurax615

    October 19, 2024 at 10:16 pm

    Thanx for all your videos !!!

  28. @lindenmeyer11

    October 19, 2024 at 10:16 pm

    Are Bus Bar diagonal configuration a myth? Can you actually measure a voltage differential gradance in a Bus bar?

  29. @whatmust8146

    October 19, 2024 at 10:16 pm

    Originally i was considering to go with the buy and use method but looking closer I get more bang for my bucks to build one. Way way more bang for the bucks!
    300AH 16S 51.2V with rack, bms and active balancing for up to $1500. Seriously diy is a way to go. Ready to use is 100ah that is 5120Wh up to $1500 VS 300AH that is 15,360 Wh for about the same cost. 3 times the power for about the same cost so it is a no brainer the DIY method is the better option.

    Now i have not mentioned for the DIY method i could pick and choose for the bestter bms and balancer (active balancer with 2a or more) which means it is even better for certain with the DIY. There is NONE of the ready to go server rack that has active balancing of 2A or more for that price and God knows what kind of bms they put in there.

    Who says that ready to go type is better does not know what they are talking about!!!!!!
    Now my diy method requires understanding of what are buying and know how to search proficiently online and of course some electronic and mechanical knowledges to assemble one. The majority of the public 99% is NOT in the 1% as mine so they go for the easier one.

    I find assemble battery pack is fun and very easy but then I am NO newbie in this as i have been doing this since 2017. Majority of consumer is NOT so that explains the popularity of the plug and play power pack.

  30. @red_diaper_doper_baby

    October 19, 2024 at 10:16 pm

    Anyone here buy free nights and weekends from a utility company, charge them at night and use them all day? Theoretically you could have no electric bill will no solar panels installed?

  31. @tlteal

    October 19, 2024 at 10:16 pm

    How would you use these in conjunction with something like the Ecoflow Delta Pro or one of the other solutions like that?

  32. @invisibilianone6288

    October 19, 2024 at 10:16 pm

    30kv,,, that should last me about a month…😁
    How long to recharge it with only a 3,500watt generator?

  33. @josidasilva5515

    October 19, 2024 at 10:16 pm

    signature solar bus bars are not compatible with their own batteries.

  34. @YeOldeTraveller

    October 19, 2024 at 10:16 pm

    That is amazing.
    I built a backup system in the late 90s using 24 AGM batteries to get the same capacity. This was a literal ton of batteries and took up much more space than that rack.

  35. @sgtspaulding9461

    October 19, 2024 at 10:16 pm

    Anyone used these batteries with a Sol-Ark 12k? Doesn’t seem to be much info out there.

  36. @legacychristianfellowship1040

    October 19, 2024 at 10:16 pm

    Hi, can you have your server rack outside in Southern CA?

  37. @ValPaschal-c8t

    October 19, 2024 at 10:16 pm

    Is there a way to modify the rack batteries to work with solar edge inverters ?

  38. @ReizungV

    October 19, 2024 at 10:16 pm

    DO you use any communications to the charger/discharger/inverter or do you just charge and discharge with the rated voltages and let the BMS in each battery handle the rest ?

  39. @batmanhutch79

    October 19, 2024 at 10:16 pm

    Your videos are amazing! You've mentioned several times about avoiding a ground loop regarding the sub panels which makes complete sense, however, what about grounding the server rack to earth ground? The manual recommends this but I'm questioning this requirement? To clarify, I'm speaking of the grounding lug on the rack, not the negative bus bar!

  40. @ChristmasSpiritOnFleek

    October 19, 2024 at 10:16 pm

    Is this rack grounded automatically?

  41. @MissingLink-hb9ov

    October 19, 2024 at 10:16 pm

    NOT WIGGLE – TORQUE..

  42. @egbenurudy8637

    October 19, 2024 at 10:16 pm

    How can I order these batteries…. Lovely video. Nice

  43. @ridingvenus

    October 19, 2024 at 10:16 pm

    7+ months after receiving a bad 24v battery Signature finally confirmed they received the 24v low voltage since day 1 battery but they don’t know when a replacement will be available.

    What a nightmare to TRY to deal with them!!

  44. @maryclaus7717

    October 19, 2024 at 10:16 pm

    We bought 2 48v EG4 batteries and an inverter about 30 days ago. So far one of the batteries has failed and a week later the inverter failed. The company is very slow to respond and refund. Lots of hoops to jump through and they don't have product on hand to replace the batteries. So frustrated. Can a different inverter be used with the remaining EG4 battery? So disappointed in this company.

  45. @stevewright1525

    October 19, 2024 at 10:16 pm

    You are the greatest threat this Nation has ever seen!!!

  46. @MmmHuggles

    October 19, 2024 at 10:16 pm

    Tell me you have money without telling me you have money…

  47. @stormcrow1112

    October 19, 2024 at 10:16 pm

    Will I love you videos and have learned so much from you. I am preparing to begin assembling my system and looking at your diagram on your wiring here for 2 racks of batteries I'm curious why one set for Battery #1 uses 4/0 copper cable and Battery #2 uses 2/0 copper cable? I have two racks (6 each) of the LiFePOWER 4 batteries for my system, two 6500ex inverters along with the new Eg4 Chargeverter. The 48 solar panels arrive tomorrow. I hope for your reply.

  48. @samba2498

    October 19, 2024 at 10:16 pm

    hi, I am buying an indoor wall mounted EG4. I have Schneider Inverter xw6048 with latest firmware. In addition I have insight facility. I am told by Schneider that XW6048 does not have the control board required to allow closed-loop battery comms. Is that true? Any workaround for BMS to communicate with the Inverter? Basically to give status of SOC.

  49. @WillProwse

    October 19, 2024 at 10:16 pm

    Next Videos will cover communication/setup procedure for EG46500EX in split phase operation.

    0:00 Initial Assembly
    0:58 Connection Check And Power Up
    1:40 Connecting to Solar Power System
    2:49 Pre-Charge Circuit Procedure
    4:14 Current Test
    6:05 Conclusion

    Server Rack Battery Parts List (affiliate links):

    Budget LiFePO4 Server Battery: https://signaturesolar.com/eg4-lifepower4-lithium-battery-48v-100ah/?ref=cPwLcVc0SW-BjN

    Server Rack: https://signaturesolar.com/eg4-battery-rack-6-slot/?ref=cPwLcVc0SW-BjN
    EG46500EX: https://signaturesolar.com/eg4-6-5k-off-grid-inverter-6500ex-48/?ref=cPwLcVc0SW-BjN

    DIY System Blueprints: https://www.mobile-solarpower.com/48v-all-in-one-buyers-guide.html

    DC Clamp Meter: https://amzn.to/39Pptdg

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Locking Rack Drawers | RDL Series

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Server Rack with secure locking door. 19-inch Quality Server Racks by Lehmann IT. Made in Germany.

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