RUIXU Battery

RUiXU 48V Server Rack Battery Kit with Bracket Racks, 10kWh to 20kWh, 2-4 RX-LFP48100 LiFePO4 Batteries, UL 1973

RUiXU 48V Server Rack Battery Kit with Bracket Racks, 10kWh to 20kWh, 2-4 RX-LFP48100 LiFePO4 Batteries, UL 1973

🔋 10.24–20.48kWh 48V LiFePO4 Kit|🔗 CAN & RS485 Inverter Comms|🧱 Bracket Racks Included|🛡️ 10-Year RUiXU Warranty
Price: $2,268.00
List Price: $2,608.00
Price: $2,268.00
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  • 🇺🇸Free ShippingContiguous 48 states
  • 🛡️10-Year WarrantyRUiXU limited warranty
  • 🔋10.24–20.48 kWh2 to 4 batteries, 48V
  • ✅UL 1973 CertifiedPlus UL 9540A tested
  • 🧱Bracket Racks IncludedOne per battery
  • 📞Real Human SupportSystem sizing help

RUiXU 48V server rack battery kit with bracket racks, 10kWh to 20kWh: 2 to 4 RUiXU RX-LFP48100 5.12kWh LiFePO4 batteries with a stackable bracket rack for each one, plus the cables to link them. Choose the size you need: 10 kWh (2 batteries), 15 kWh (3 batteries) or 20 kWh (4 batteries). Each battery stores 5.12 kWh (4.92 kWh usable) with 6,000+ cycles at 90% depth of discharge, and the bank talks to your inverter over CAN or RS485 in closed loop. The bracket racks let you stack the batteries on the floor without a cabinet. Certified to UL 1973 and tested to UL 9540A. Backed by RUiXU's 10-year limited warranty.

10.24–20.48kWh nominal
2–4Batteries in the kit
Up to 32Batteries in parallel
6,000+Cycles at 90% DOD

Ratings from RUiXU's spec sheet. Kit contents from RUiXU's kit listings.

🔋 Is It Right for Your System?

Built for 48V home energy storage with a compatible inverter. Common uses:

  • Home solar storage
  • Whole-home backup
  • Off-grid homes
  • Shops & outbuildings
  • Victron & Sol-Ark systems
📏 Quick check before you order:
  • Your inverter is 48V and on RUiXU's list (CAN: Victron, SMA, Sol-Ark, Growatt, Deye, Schneider and more; RS485: Voltronic, MPP, Sunsynk and more).
  • You'll install it indoors. The batteries are IP20, so the kit isn't for outdoor or wet locations. Charging needs the batteries at 0°C (32°F) or warmer; choose the self-heating kit for colder spaces.
  • RUiXU rates battery-to-battery daisy-chaining (no busbar) for 2,000–5,000 W systems. For a larger inverter, add a busbar or choose the cabinet kit.
  • Your floor can take the weight: each battery is 103.6 lb, so a 4-battery stack is about 414 lb plus brackets.
  • You'll add battery-to-inverter cables, a DC breaker or fuse, and an inverter communication cable.
  • Need UL 9540? RUiXU lists UL 1973 and UL 9540A, not UL 9540. Check with your inspector, and call us if you need paperwork.
Not sure which size? Tell us your inverter and loads, and we'll size the kit before you buy.

Why Choose RUiXU Server Rack Batteries

🔋

5.12 kWh Per Battery

51.2 V, 100 Ah LiFePO4 modules with 4.92 kWh usable and 6,000+ cycles at 90% depth of discharge.

🔗

Talks to Your Inverter

CAN and RS485 closed-loop communication with Victron, Sol-Ark, Voltronic, MPP, Growatt, Deye, Schneider and more.

➕

Expand to 32 Batteries

Parallel up to 32 batteries (160 kWh) with no extra controller, so you can start small and grow.

✅

UL 1973 & UL 9540A

Intertek-certified to UL 1973, with UL 9540A fire testing, IEC 62619 and UN38.3.

🧠

Smart BMS

Protects against overcharge, over-discharge and overcurrent, and balances the cells automatically.

🧱

Stackable Bracket Racks

One bracket rack per battery lets you stack the bank on the floor without a cabinet.

🎥 Videos

RX-LFP48100 firmware upgrade (from RUiXU)

Independent review: RUiXU 48V 100Ah rack battery (Lithium Solar)

🔋 Kit Sizes

Kit Batteries Nominal energy Usable energy Combined max discharge
10 kWh 2 10.24 kWh 9.84 kWh 200 A
15 kWh 3 15.36 kWh 14.76 kWh 300 A
20 kWh 4 20.48 kWh 19.68 kWh 400 A

Multiples of RUiXU's per-battery ratings (50 A recommended, 100 A max each). Your inverter, cabling and busbar set the real limit.

📦 What's Included & What You'll Need

  • RUiXU RX-LFP481002–4 × RUiXU RX-LFP4810048V 100Ah 5.12kWh batteries; quantity depends on the size you choose
  • 2–4 × Bracket RackOne stackable bracket rack per battery
  • Cables for Each BatteryRJ45 communication cable, ground cable and 4AWG parallel cables (for battery-to-battery links)
  • Manuals & Warranty CardsOne with each battery
Plan to add: A busbar for systems over 5,000 W, battery-to-inverter cables, a DC breaker or fuse, and an inverter communication cable. RUiXU's RS485 PC cable for RuiXUTool is sold separately. Ask us and we'll put together everything your install needs.

🔍 Which RUiXU Option Fits?

Every option uses the same 48V 100Ah RUiXU server rack battery. Pick by heater, mounting and size.

Option Batteries Energy Self-heating Mounting
RX-LFP48100 1 5.12 kWh No Your rack, bracket or cabinet
RX-LFP48100-H 1 5.12 kWh Yes Your rack, bracket or cabinet
Bracket Rack Kit 2–4 10–20 kWh No Stackable bracket racks
Self-Heating Bracket Rack Kit 3–4 15–20 kWh Yes Stackable bracket racks
Cabinet Kit 3–6 15–30 kWh No 6-slot cabinet with busbars
Self-Heating Cabinet Kit 3–6 15–30 kWh Yes 6-slot cabinet with busbars

All options are on our store. Not sure which fits? Call 833-664-7433.

🔌 Charging & Inverter Setup

⚡

Charge Settings

Charge at 56.0 V and float at 54.6 V, at up to 50 A per battery recommended (70 A max).

🔗

Closed-Loop Communication

Connect the master battery to your inverter over CAN or RS485 so it can set charge limits automatically.

🎚️

Protocol DIP Switch

Choose your inverter brand's protocol with the DIP switch on the master battery.

💻

Firmware & Monitoring

Update firmware and view cell data with RUiXU's RuiXUTool PC software and an RS485 cable.

🛡️ 10-Year RUiXU Limited Warranty

Years 1–10RUiXU limited warranty from the date of sale, with proof of purchase
15-Year Design LifeRUiXU's rated design life, with 6,000+ cycles at 90% depth of discharge

Warranty claims are made through the place of purchase, which is us. RUiXU's warranty doesn't cover improper installation or wiring, reverse polarity, extreme environments, charging below the allowed temperature, communication misuse, opening or tampering with the battery, misuse, or normal end of life. Full terms on RUiXU's warranty page below.

📋 Full Specifications

Battery (per module)
Model RUiXU RX-LFP48100
Chemistry / Format LiFePO4, 19-inch server rack, 3U
Nominal Voltage / Capacity 51.2 V / 100 Ah
Nominal / Usable Energy 5.12 kWh / 4.92 kWh (90% DOD)
Operating Voltage 44.8–56.0 V
Charge / Float Voltage 56.0 V / 54.6 V
Charge Current 50 A recommended; 70 A max
Discharge Current 50 A recommended; 100 A max
Peak Discharge 101–119 A for 5 minutes; 120–149 A for 15 seconds
Cycle Life / Design Life 6,000+ cycles at 90% DOD / 15 years
Parallel Up to 32 batteries (160 kWh), master/slave switch
Communication & Controls
Ports Link In / Out (CAN and RS485), RJ45
Inverter Protocol Set by DIP switch on the master battery
Front Panel Power switch, reset button, RUN / ALM / SOC lights, dry contacts (incl. rapid shutdown input)
Monitoring RuiXUTool PC software over RS485 (no screen or Bluetooth)
Physical & Certifications
Dimensions (W × H × D) 482 × 133.5 × 460 mm (18.9 × 5.2 × 18.1 in)
Weight About 47 kg (103.6 lb) per battery
Protection IP20, indoor installation only
Operating Temperature -10 to 50°C (14 to 122°F), derated below 10°C and above 40°C; charging 0 to 50°C per the manual
Storage Temperature -10 to 45°C (14 to 113°F)
Certifications UL 1973, UL 9540A, IEC 62619, CE, UN38.3
Warranty 10-year RUiXU limited warranty
Kit
Kit Sizes 10kWh (2 batteries), 15kWh (3 batteries), 20kWh (4 batteries)
Mounting One RUiXU bracket rack per battery, stackable
Busbar Not included; RUiXU rates busbar-free daisy-chaining for 2,000–5,000 W systems

📄 Manuals & Downloads

📄Spec SheetRX-LFP48100 & RX-LFP48100-H (PDF)PDF ↗📘User ManualRX-LFP48100 series, V1.2 (PDF)PDF ↗✅UL 1973 CertificateIntertek, covers both models (PDF)PDF ↗🔥UL 9540A Test ReportRUiXU test report (PDF)PDF ↗💻RuiXUTool Software GuidePC monitoring over RS485 (PDF)PDF ↗📜RUiXU Limited WarrantyFull warranty termsRUIXU ↗

Specs are from RUiXU's spec sheet and manual. Documents above link straight to RUiXU.

❓ Common Questions

Will it work with my inverter?
It's built for closed-loop communication. Over CAN it supports Victron, SMA, Studer, Sofar, Sol-Ark, Solis, GoodWe, Deye, Growatt, SAJ, LuxPower and Schneider; over RS485 it supports Voltronic, MPP, RCT, Alpha, OutBack, Megarevo, INVT, Sermatec, TBB, MUST and Sunsynk. Set the protocol with the DIP switch on the master battery. Tell us your inverter and we'll confirm.
Does it have a screen or Bluetooth app?
No. Lights on the front show status and state of charge, and RUiXU's RuiXUTool PC software shows full data over an RS485 cable. With closed-loop communication, many inverters also show battery data on their own display or app.
Can I install it outdoors?
No. The battery is IP20 and rated for indoor installation only, in a dry, ventilated space.
Is it UL 9540 listed?
RUiXU lists UL 1973 (battery) and UL 9540A (fire test), not a UL 9540 system listing. Some inspectors require UL 9540 for the full system, so check with your local authority. Call us if you need paperwork.
Can I add batteries later?
Yes. Up to 32 batteries can run in parallel without an external controller. Set one battery as master and the rest as slaves.
Do I need a busbar?
RUiXU rates battery-to-battery daisy-chaining without a busbar for 2,000–5,000 W systems. For a bigger inverter, add a busbar, or choose the cabinet kit, which has busbars built in.
How does the warranty work?
RUiXU covers it for 10 years from the date of sale with proof of purchase. Warranty claims go through the place of purchase, so contact us and we'll handle it with RUiXU.

Questions About Your Setup? Ask Us First.

Tell us your inverter, loads and where the batteries will go, and we'll confirm the right RUiXU kit size before you order.

📞 Call 833-664-7433📧 Email Us