RUIXU Battery

RUiXU RX-LFP48100 48V 100Ah 5.12kWh LiFePO4 Server Rack Battery, 3U, UL 1973, UL 9540A, CAN/RS485, 10-Year Warranty

RUiXU RX-LFP48100 48V 100Ah 5.12kWh LiFePO4 Server Rack Battery, 3U, UL 1973, UL 9540A, CAN/RS485, 10-Year Warranty

πŸ”‹ 48V 100Ah 5.12kWh LiFePO4|πŸ—„οΈ 3U Server Rack Battery|πŸ”— CAN & RS485 Inverter Comms|πŸ›‘οΈ 10-Year RUiXU Warranty
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List Price: $1,159.00
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Call Us 833-664-7433
  • πŸ‡ΊπŸ‡ΈFree ShippingContiguous 48 states
  • πŸ›‘οΈ10-Year WarrantyRUiXU limited warranty
  • πŸ”‹5.12 kWh LiFePO451.2 V, 100 Ah, 3U rack
  • βœ…UL 1973 CertifiedPlus UL 9540A tested
  • πŸ”—CAN & RS485Closed-loop with top inverters
  • πŸ“žReal Human SupportSystem sizing help

RUiXU RX-LFP48100 48V 100Ah 5.12kWh LiFePO4 server rack battery: a 3U, 19-inch rack battery for home solar, backup and off-grid systems, with CAN and RS485 inverter communication and up to 32 batteries in parallel. Each battery stores 5.12 kWh (4.92 kWh usable) and delivers up to 100 A, with 6,000+ cycles at 90% depth of discharge. Set your inverter brand with a DIP switch and the battery talks to it in closed loop. It's certified to UL 1973 and tested to UL 9540A. Use it on its own, add more later, or mount it in a rack, a RUiXU bracket rack or a 6-slot cabinet. Backed by RUiXU's 10-year limited warranty.

5.12 kWhNominal energy
4.92 kWhUsable (90% DOD)
100 AMax continuous discharge
6,000+Cycles at 90% DOD

Ratings from RUiXU's spec sheet.

πŸ”‹ 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 cabins & homes
  • Shops & outbuildings
  • Victron & Sol-Ark systems
πŸ“ 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 battery is IP20, so it isn't for outdoor or wet locations.
  • Each battery handles 100 A max (50 A recommended). Add batteries in parallel for bigger inverters. Charging needs the battery at 0Β°C (32Β°F) or warmer; choose the RX-LFP48100-H for colder spaces.
  • You have a place for a 103.6 lb, 3U battery: a 19-inch rack, a RUiXU bracket rack or a RUiXU cabinet (sold separately).
  • 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? Tell us your inverter and loads, and we'll size the right bank before you buy.

Why Choose RUiXU Server Rack Batteries

πŸ”‹

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.

πŸ”—

Talks to Your Inverter

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

βž•

Expand to 32 Batteries

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

βœ…

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.

πŸ—„οΈ

Standard 3U Rack Size

Fits any 19-inch rack, or use RUiXU's bracket racks or 6-slot cabinet.

πŸŽ₯ Videos

RX-LFP48100 firmware upgrade (from RUiXU)

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

πŸ”‹ Build Your Battery Bank

Batteries Nominal energy Usable energy
1 5.12 kWh 4.92 kWh
2 10.24 kWh 9.84 kWh
3 15.36 kWh 14.76 kWh
4 20.48 kWh 19.68 kWh
6 30.72 kWh 29.52 kWh
32 (max) 163.84 kWh 157.44 kWh

Multiples of RUiXU's per-battery ratings. Actual usable energy varies with your inverter, temperature and settings.

πŸ“¦ What's Included & What You'll Need

  • RUiXU RX-LFP48100RUiXU RX-LFP48100 battery48V 100Ah 5.12kWh, 3U
  • RJ45 Communication CableBattery-to-battery link
  • Ground Cable & 4AWG Parallel CablesFor connecting to other batteries or a busbar
  • Manual & Warranty CardIncluded
Plan to add: Battery-to-inverter cables, a DC breaker or fuse, an inverter communication cable and, if needed, a rack, RUiXU bracket rack or cabinet. RUiXU's RS485 PC cable for RuiXUTool is sold separately. Ask us and we'll put together everything your install needs.

πŸ” 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.

πŸ”Œ 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).

πŸ”—

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.

πŸ’»

Firmware & Monitoring

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

πŸ›‘οΈ 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.

πŸ“‹ 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 Γ— H Γ— D) 482 Γ— 133.5 Γ— 460 mm (18.9 Γ— 5.2 Γ— 18.1 in)
Weight About 47 kg (103.6 lb) per battery
Protection IP20, indoor installation only
Operating Temperature -10 to 50Β°C (14 to 122Β°F), derated below 10Β°C and above 40Β°C; charging 0 to 50Β°C per the manual
Storage Temperature -10 to 45Β°C (14 to 113Β°F)
Certifications UL 1973, UL 9540A, IEC 62619, CE, UN38.3
Warranty 10-year RUiXU limited warranty

πŸ“„ Manuals & Downloads

πŸ“„Spec SheetRX-LFP48100 & RX-LFP48100-H (PDF)PDF β†—πŸ“˜User ManualRX-LFP48100 series, V1.2 (PDF)PDF β†—βœ…UL 1973 CertificateIntertek, covers both models (PDF)PDF β†—πŸ”₯UL 9540A Test ReportRUiXU test report (PDF)PDF β†—πŸ’»RuiXUTool Software GuidePC monitoring over RS485 (PDF)PDF β†—πŸ“œRUiXU Limited WarrantyFull warranty termsRUIXU β†—

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.
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 battery will go, and we'll confirm the right RUiXU setup before you order.

πŸ“ž Call 833-664-7433πŸ“§ Email Us