RUiXU 48V 100AH Lithium Rack Battery Full Review, UL1973, Off-Grid Solar Power

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The RUiXU 48V 100Ah LiFePO4 rack-mount battery is brand new on the market. This battery has a few improvements over others in the market, one of which is the smaller 3U size making it more energy-dense. How will it hold up though? Watch the video and find out!
WARNING: Lithium batteries are dangerous and can result in fire! This video is NOT intended to be instructional or a "how-to" lesson. I am not a professional. Do not attempt anything you see here without first contacting a certified and/or licensed professional.
Chapters:
00:00 Introduction
00:15 Physical Overview
02:20 User's Manual
03:43 Capacity Testing
05:10 Disassembly
08:50 BMS Close-Up
09:34 Low-Temp Protection
10:16 Rack Information
10:33 Pricing Structure
11:06 Conclusions
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SanTan Solar... www.santansolar.com/?ref=lsolar
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Batrium BMS... www.batrium.com/
Contact Info:
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Disclaimers and Statements:
► I receive a small commission on purchases made using my affiliated links shared the video description and comments section. The views and opinions expressed here are my own, unbiased, and not influenced by this commission in any way.
► My videos are in no way intended to be instructional "how-to" lessons. I am simply documenting my project for informational purposes. Property damage, personal injury, or death may result, even when following manufacturer's instructions. I cannot be held liable for such damage or injury. It is YOUR OBLIGATION to ensure that you are complying with any local and federal laws as well as code and permit requirements.

[@LithiumSolar]

RUiXU Battery... www.ruixubattery.com/product-page/rx-lfp48v100-19-rack-mounted-3u-module-ul1973-certified/?ref=lithiumsolar RUiXU Battery (Current Connected)... www.currentconnected.com/product/ruixu-rx-lfp48100-19-rack-mounted-3u-battery-ul1973-certified/?ref=lithiumsolar (affiliate links)

[@Adrayven]

Discount code not working :(

[@LithiumSolar]

@@Adrayven They changed their pricing already and removed the discount code. Even without the discount code, it's now $100 cheaper than it would have been at the time of this video with the discount code.

[@GavinStoneDIY]

It’s encouraging to see the overall build quality of the rack batteries on the market improving. I think a lot of that is due to the break down videos like this. Always appreciate your videos.

[@paultarp9150]

A stack of 6 of these with cabinet is now $7753. I'm thinking that's going to be part of my system soon.

[@DavidPozEnergy]

Thanks for the video. It was nice to hear you say not to daisy-chain the batteries together. Bus bars are so much nicer.

[@LithiumSolar]

The cable it comes with has a ring terminal on one end so you can't daisy chain them without going out of the way to make (or find) a cable with amphenol at each end. Also to be clear, I don't think daisy-chaining is "unsafe" just that the busbar method is much better.

[@popng1600]

@@LithiumSolar it is totally based on the load size.

[@ruixubattery]

We recommend bus barS connection solution, not the Daisy Chain, The Daisy Chain is only available for a 48V system not over 5000W.

[@wojohowitz5432]

none of this makes any sense to me.... but your videos are so well done, that I am seriously considering utilizing much of your content and product recommendations into my own home/business. Well done! A good friend of mine, an electrician/ technologist, just retired and is looking for something to do for his career 2.0. I think he just found it.

[@TekedixXx]

This is looking like a really interesting battery option. I love that it's 48v and really small, would be perfect for a small cabin or other space constrained location where you only need one.

[@hondaredrdr]

Thanks for the video, I bought this battery based on your review.

[@chuxxsss]

Looks really good.

[@BradCagle]

Looks Awesome!

[@greenfrog58]

Great video! Like some more test with solarinverter.

[@smithrb]

Presumably, the battery BMS utilizes firmware for some of its functionality. I did not notice in the video where you may have addressed firmware. Do you have any idea if Ruixu supports end-user firmware updating capability and/or are there any software tools available as is the case for many of these types of batteries? Thanks

[@philsmart480]

should you use a dc breaker when you connect to an inverter?

[@mmbodnar]

They also have an interesting "stack-rack" mounting system with their own modular Bus Bar... only available in the US store right now.. Ruixu has a video about it on their channel.

[@clarencewiles963]

Are you hearing anything about sodium 🧂 batteries? Thumbs up 👍 this is looking great 👍

[@WiSeNhEiMeR-1369]

QUESTION: any idea what the function of that ( 2032 ) "BUTTON - BATTERY " performs on the BMS Board ??? ... COOP

[@maverickmacgyver]

Did they give you a couple to put in your system? I can’t wait to build a giant system from all these different brand 100Ah LiFePO4 batteries.

[@AveRage_Joe]

Nice a 3U!

[@jonathancarroll87]

Is there any simple resource that compares ruixu’s battery pack with eg4’s life power4 and LL?

[@TundeEszlari]

Super video.

[@Roll2Videos]

Very nice.

[@TEN-ve8mp]

Did I miss mention of a warranty? Great info btw.

[@LithiumSolar]

Their warranty policy can be found here www.ruixubattery.com/warranty

[@KenKnowledge]

7 years.

[@offgridwanabe]

I will wait for more information on those battery connectors not sure how well they are.

[@LithiumSolar]

They're used on other batteries, like those by pylontech. Maybe I'll do some load testing on it and see how it handles under 100A.

[@houseofancients]

these look to be amphenol , seplos uses a similar connector, different company

[@ericklein5097]

They're made by Amphenol...very high quality stuff.

[@HighTechLab]

- No charge current limiter on the BMS - No circuit breaker / disconnecting means other than the BMS - Permanently assembled so no possible field serviceability - 7 year warranty vs 10 year most others offer - warranty is invalid if you don't connect CAN communication cables - warranty is invalid if you open the case - warranty is invalid if the manufacturer determines the battery is at the end of its usable life, however, they don't define what the usable life actually is - No USA-based support (phone number is in China) - No built-in monitoring to see %SOC, so you need to buy an external shunt

[@LithiumSolar]

Fair points! In summary... Not an SOK 🙂

[@ReubenHorner]

Soc should come over can or rs232

[@iteerrex8166]

This is 1450 usd and an SOK is $1650 right now. 200 bucks.. your call.

[@iteerrex8166]

@Eric My comment wasn’t directed at you. It was kind of a rhetorical statement (if there’s such a thing lol). The SOK is hands down the clear winner.

[@GavinStoneDIY]

The breaker issue is really what stood out to me. Appreciate the summary Dexter.

[@WiSeNhEiMeR-1369]

HOWdy L-S, ... Thank you for this REVIEW ... COMMENT: what a "terrible" location for a "CASE GROUND" screw !!! ( within an INCH of the +POSITIVE+ Battery POSTS !!! ) a more logical location would be near the --NEGATIVE-- Battery Posts ... the EG4-LL (V1) had this same poor design ... but ... the EG4-LL (V2) corrected this design "flaw" Thanks again COOP the WiSeNhEiMeR from Richmond, INDIANA ...

[@LithiumSolar]

I'm not sure I see that as problematic considering the type of connectors we have here. There is no exposed contact area - connected or disconnected.

[@ericklein5097]

Does that actually shut off the charging current from going into the battery or does it reduce the current to a very tiny safe current? Couldn't tell if it was your clamp meter just being a little off with the zeroing or if it does indeed drop the current to a safe level for low temp charging.

[@LithiumSolar]

It shuts off. Clamp meters aren't very precise and no matter how many times it's zeroed it never stays at zero. I guess because of magnetic fields everywhere but that's just a guess.

[@kenalv]

I really hope its a good brand for the renewable market. However be careful, subsequence units need to be checked too, do not just rely on the review unit. Speaking from experience.

[@rob8823]

I like the internals on the eg4 better. The discharge resistor looks like it is purpose built compared to the 4 slapped on the board here, items are spread out, physical breaker (quality seems ? but can be replaced)... Price recently was 13 or 1400 with good multi battery/rack discounts and 200 dollar shipping. Also a fire suppression pack on top of the packs rather than a simple insulation layer. All these UL approvals seem questionable and it looks like a complicated subject. I don't see a ul sticker on any of these things... That being said, UL listed breakers have burnt down a lot of houses so it's all on you in the end anyway.

[@LithiumSolar]

The EG4 batteries are very good as well, nothing bad to say about those. I have one of the LifePower4 and love it. The battery I have here was shipped out before testing was completed, so there is no ETL sticker on it. I don't know if they'll be adding them to those that ship in June or not. Also agree the UL topic is rather complicated especially as someone else asked earlier, some areas are requiring things be listed as a complete ESS UL9540. I'm not an expert on the matter.

[@ferrisbuellersdayoff]

I currently have an SOK 48V / 100ah LIfepo4 battery on a small 3000kw solar system. Is it safe to add (attach) one of these to my current set up to double battery power? -Ok to put 2 different name brands together? -they have same specs Would appreciate thoughts from anyone. Cheers

[@awesomedee5421]

There is something I'd like to see. I'd like to see a high current drain test to see if the cells drop voltage or not. It would kind of give an indication of how well the cells will age over time

[@LithiumSolar]

I'll be doing a high discharge test here in the next few weeks. I'll try to hit the full 100A and will grab some thermal images.

[@awesomedee5421]

@@LithiumSolar excellent! I'll look forward to it. give it hell. I want to see the voltage levels with sustained draw. I like the product except for some personal preferences, but I'm still unsure about the quality of the cells, so it will help me make a decision. Also in the follow up, remind us if you are testing a unit they sent direct to you, or if it is one you bought in case they like to send the best ones to the youtubers and random ones to everyone else.

[@LithiumSolar]

@@awesomedee5421 Yes, I am testing a unit they sent me for the purposes of the video. I always indicate this where applicable when I upload videos. There's a message that displays in the beginning that it contains paid promotional content. I never accept payment for review videos, but I'm still required to check the box when a product was sent to me for free.

[@Jmax777]

Why would this be a game changer?

[@LithiumSolar]

Did you watch the video? I discussed how it differs from some of the other battery options.

[@peterking1134]

Is there anyway to change parameters or view status via Bluetooth?

[@LithiumSolar]

No, there is no bluetooth or parameter-changing functionality. There's no reason to be changing the BMS parameters.

[@diyEVguy]

Regarding sales in the USA and the ETL/Intertek certificate: The shown laboratory address is *not* in OSHA's list of "Recognized Testing Sites" for Intertek (however it may be recognised under the umbrella of their Arlington Heights Branch). Still, standard 1973 is *not* in OSHA's list of "Recognized Testing Standards" for Intertek. So this product is *not* "listed" as defined in the NEC. Please correct me if I am wrong.

[@haroldlopez5700]

Lots of me too rack battery systems claim lab certificates they don't really have. Do they have USA based support if anything goes wrong or is it a wechat deal with China?

[@MrHoolign]

looks great but where's the Circuit Protector? fairly standard nowadays to have a 100A or 150A switchable circuit breaker

[@ruixubattery]

Instead of adding a circuit breaker to each battery, we recommend that customers add a circuit breaker or fuse when connected to the inverter after the battery pack is connected in parallel. On the whole, this method has the lowest cost.

[@jtc1983tx]

​@@ruixubatterythe discount code given here doesn't work on your website. Can that be reinstated?

[@adamsisernik4556]

Hi, can I charge my Ecofolw Delta Pro from this RUiXU battery with xt60 port? DELTA PRO SPEC: AC Charge 120V~ 1,800W Max, 240V~ 3,000W Max AC Input Voltage 100-120V~ 15A, 220-240V~ 12.5A, 50Hz/60Hz Solar Charger 11-150V 15A Max, 1,600W Max

[@user-vk5vm3ne1w]

Do you have the interest in testing residential energy storage systems? We can deliver a product for you to use and test.

[@OffGridAussiePrepper]

NICE RACK......

[@edwarddejong8025]

America is screwed. We don't make much electronics anymore, and this is a well made piece of gear.

[@tsp2jxd]

Great review as always. I dont see how this any better than the competition? They all look like that now. And its more expensive than others. Meh

[@LithiumSolar]

I discussed how I feel it's better, though they are minor things and may not matter to some people.

[@tsp2jxd]

@@LithiumSolar Still appreciate the work you do. Keep them videos coming. Another idea is to show the charging and discharging of a server rack battery that also has 4 12v 100Ah batteries in series. Just so we see and understand how that works. Peace!

[@niffrig]

@@tsp2jxd I think that is 4s4p prismatic cells in the rack. What else if there to know?

[@user-rb6in1qz9c]

@@niffrig 16s1p

[@niffrig]

@@user-rb6in1qz9c you are right not sure why I thought it was 12v

[@JamesAmbrose48]

I’m waiting to see a market develop for 48v 200 AH batteries for those who want a 10kw system with just one battery.

[@LithiumSolar]

We already have these availble, check Trophy batteries. They're not as popular though as they weigh a crapton. A 200Ah 48V battery would weigh over 200lbs and require multiple people or a hydraulic lift to move around.

[@JamesAmbrose48]

@@LithiumSolar which is why Big Battery offers them with coaster wheels and a 10 year warranty. So far they’re my top pick but very expensive.

[@LithiumSolar]

@@JamesAmbrose48 There have been too many problems with batteries from BigBattery. I want to like their products but I can't when half of what I've gotten has had problems.

[@JamesAmbrose48]

@@LithiumSolar which is why I’m patiently waiting for a better choice. I don’t want 2 parallel 5kw batteries because of the extra cabling, bus bars, class T fuse, and communication between 2 BMS. Multiple points of failure. But it might be my best option. Love your channel BTW.

[@Raphael_Hofmann]

How does the Balancing work? Does it do propper top balancing, once the battery is fully charged? A lot of cheap BMS in the serverrackspace, do only balance, while a charge current is detected.

[@ruixubattery]

Like most companies, we also choose equalization near the end of charging. Compared with other companies, our equalizing current is relatively large, generally 2~3 times that of others.

[@Raphael_Hofmann]

@@ruixubattery Do you also equalize, once the battery is fully charged? How large is the equalization current?

[@ruixubattery]

@@Raphael_Hofmann equalization is done near the end of the charging, not after the full charge. equalization current 150mAh, most companies around 50~60mAh.

[@Raphael_Hofmann]

@@ruixubattery 150mA is good. But without equalization at the end of charging, it is useless. I am sorry to find such clear words. I hope, you can improof that in future. If not, you will get problems with warranty claims in some years.

[@LithiumSolar]

@@Raphael_Hofmann I'm not sure that makes sense. As soon as the charger turns off, the cell voltages are going to drop within a matter of minutes below whatever the set balance point is. If you look at a 12V battery for example, it's full charge at 14.6V but once the charger shuts off, you'll be reading 13-something on the terminals.

[@davidfifth6109]

Love how current connected complains about this battery, but sells a "low end" SOK for more money, no communication, no UL listing, same warranty etc. Come on, bashing another maker because they are competing with you is so unprofessional. When Lithium Solar says this might be the best built battery, maybe you should improve yours before complaining about someone else. Oh, wait, you don't make the battery, you buy it from a Chinese manufacture, maybe why I can buy a jakiper, basically identical battery, for less money and less shipping.

[@ovchannelag5238]

👍👍

[@awesomedee5421]

3U? LFP? 100AH? How is that possible? Other's need 4U. Are they squeezing more capacity in the LFPs? I thought it was a fixed formulation.

[@LithiumSolar]

I'm pretty sure they're the same GFB cells as other batteries, just less wasted space in the case. I can't be 100% sure though as all I can see is the vent lol.

[@ruixubattery]

I know most companies can only do 4U, such as SOK. Ruixu batteries use GFB 100Ah LFP cells too, but ruixu cell model is different from SOK. The main difference between the two models is the pole structure. The SOK cell pole is designed with screw holes, but the ruixu pole is not, so the SOK cell is 11mm higher than the ruixu pole. SOK 100Ah cell can use nickel-plated copper strips and screws to pack, Ruixu 100Ah cell uses lasers to weld aluminum blocks. laser welding connection is much more solid and reliable, at the same, the height of the whole battery pack can be shorter. The choice of different cells is due to different design tendencies.

[@awesomedee5421]

@@ruixubattery Thanks for the info. I see the laser welds now. 3U is GREAT! I know it might be better, but I would still prefer screw in connectors so I can replace the poor cells after 10 years and get more life -- maybe there is some low profile screws. Also do you plan on having a display version and/or bluetooth? I like the precharge resisters+++.

[@oneshot_onekill4618]

No fuse????

[@LithiumSolar]

No fuses or breakers built-in other than the over-current protection of the BMS.

[@oneshot_onekill4618]

​@@LithiumSolar so you would run 125A fuse any you personally recomend?

[@herbertvonsauerkrautunterh2513]

I just don't like the welded bus bars. Makes it difficult later if you need to replace a cell or use them for other things. Otherwise it looks great. But all i can get here for a good price and availability is jakiper. I have two of them already

[@rob8823]

I think the welded bus bars could be cut out and one of the main fire dangers is those connections loosening.. It may also keep your cells from failing due to a poor connection. Yes, it's a hit in serviceability. But it makes a lot of sense, especially coming from a business with liability and DIY customers that open their stuff up and poke around. Besides that.. imagine being the factory worker that torques a billion bolts in a week... You think they might miss a few?

[@herbertvonsauerkrautunterh2513]

Yeah i get it. It's a retail product. I suppose i look at everything from my point of view as someone that has an aptitude and willingness to DIY.. everything... I haven't taken a car to a mechanic since 1996😀.. I think bus bars coming loose in a battery that's installed in a house or shed is not an issue. Mobile applications with vibration could be. It's just a case of, if a cell becomes U/S then the battery is useless without costly repair. That too me if anathema 😛..

[@jw8567]

is it possible to add active balance to this battery?

[@LithiumSolar]

Possilbe - sure, anything is possible. I don't know why you would want to and it's definitely not recommended to do so.

[@jw8567]

want to connect in parallel a 48v 280ah lfp battery later and have read is a good idea to have an active balancer 2 or more batteries

[@cvwagon]

@LithiumSolar Active balancing also works whilst discharging and can protect a cell from over discharging on it's own when in storage and not being cycled. Passive almost always only work on charging, but yes agreed is adequate for most situations.

[@loucinci3922]

How heavy is one battery?

[@LithiumSolar]

They're around 100lb each.

[@boomermatic6035]

Based on the quality of what I see in the picture I will be buying this rack, the EG4 rack is absolute crap and would advise that people avoid it.

[@JonCFox333]

I am seriously considering an EG4 rack system, Can you share why their rack is crap?

[@boomermatic6035]

@@JonCFox333 Sure, the rack came in damaged because of inadequate packaging, there was weld spatter and metal shavings all over the inside of the rack, they spray painted the scratches in the rack while it was in the box and shipped it that way, most of the battery hold down screws had the screwdriver part chewed up, some the support rails for battery were welded in crooked, the screw threads for the caster screws were filled with paint.

[@dwightmoret2616]

What about customer support?

[@LithiumSolar]

What about it?

[@jonathancarroll87]

Those customer support on WhatsApp seems to be very responsive. I’ve been badgering them will a lot of amatire questions and they are very quick to respond and share. I know it isn’t a service request, but I’m still in the consideration phase with ruixu vs eg4

[@TheJensss]

This looks really well built, but unfortunately I don't see myself buying a rack battery before the price is on the same level as a DIY battery with new liFePO4 cells. 100-200 USD pr. kWh for a pre assembled rack battery (48v 100ah) is ok, but nothing more from my point of view, since there are multiple trusted resellers of genuine new cells with good prices locally. So the risk with a DIY option is minimal

[@hightecrebel]

Little late to ask, but where are getting the cells, busbars, and everything else to build a 48v/100ah for $200? Last time I priced it out (granted about 18 months ago) I was at ~$950 for trustworthy Grade A's and quality busbars

[@TheJensss]

@@hightecrebel I'm pretty sure I typed something wrong here and that I meant 100-200 USD a kWh. Since you can buy a 280ah cell for about 100 USD.

[@mikebonney1462]

@@TheJenssswhere are you buying quality cells for $100? Serious q, not trolling.

[@TheJensss]

@@mikebonney1462 In the EU a store called Nkon sells such cells

[@unionse7en]

Under what circumstances is an ETL listing valuable in the USA...since Inverters and ESS's have to be tested and UL listed as a "complete system" ? That is, for those of us who need code approval even when not connected to the grid. (UL 9540)

[@popng1600]

First step is to pass UL1973, then you can have UL9540 for ESS

[@phizicks]

fyi, California but company is from China "HuiZhou city, Guangdong Province, China"

[@junctek1802]

We are a manufacturer of battery coulometers, would like to send you a KG140F test, looking forward to your reply.

[@glennwest4438]

Why don't these companies use 300ah cells

[@LithiumSolar]

Probably because you would need 5 people to lift and move it... You can get some larger capacities - Trophy has a 304Ah 48V.

[@glennwest4438]

@@LithiumSolar the eve 305 cells not much larger than the 100

[@LithiumSolar]

@@glennwest4438 The EVE 305Ah cells are 2.8 times larger both in terms of volume and weight. That means you're looking at about 325lbs for a rack battery of 305Ah cells.

[@farside87]

You had me until you popped the cover. One cell failure and the whole thing is a piece of junk.

[@LithiumSolar]

This battery, like amost every other battery we review on this channel, is not designed to be servicable.

[@TsiRoadkill]

Why would anyone buy this battery when the major brands are twice the capacity for the same price.

[@LithiumSolar]

What "major brands" are you talking about that have 48V 200Ah rack batteries? Yet alone at the same price??

[@niffrig]

Please let me know I would by a 10 kWh battery for 1500 in a hot second

[@richardjohnson6486]

I will stick with LG. Based on the 5 KWH price of $1449 this would be $4347 for 15 KWH which is just too expensive for a no-name / unproven CHINESE Brand.

[@LithiumSolar]

What does being CHINESE have anything to do with it? Practically everything is made in China these days.

[@xstatic981]

China owns 99% of the portable Lithium chemistry market. There is no avoiding ~~ CHINESE ~~ no matter how hard you try.

[@lickalittle]

Waste of money 💰 welded cells are a deal killer for me, I was interested now these batteries fail my review 😊