Affiliate disclosure: SolOffGrid may earn a commission from qualifying purchases made through links on this page, at no additional cost to you. This is a research-based review of published product information. We have not purchased, installed, opened, charged, discharged, or physically tested the Cubix100.
The ECO-WORTHY Cubix100 is marketed as a 48V-class LiFePO4 server-rack battery with 100Ah capacity and 5.12kWh of listed energy. It may be worth comparing if you need a rack-format module with monitoring and BMS communication ports, but availability must be checked for the exact version and delivery address. On October 11, 2026, the U.S. product page showed conflicting availability signals: it labeled the offer “Sold out,” while also displaying a purchase control. We could not confirm that the standard Cubix100 1 Pack is currently available. Check the exact variant and delivery to your ZIP code on the seller’s page before relying on its availability.
Check current availability: Visit ECO-WORTHY. Confirm the current product version, stock, warranty, and compatibility documentation before buying.
Nominal capacity is the starting point.
- Published nominal capacity
- 51.2V × 100Ah = 5,120Wh (5.12kWh). This is not measured usable energy.
- Energy delivered to loads
- Depends on allowed depth of discharge, reserve settings, conversion losses, temperature and battery condition.
- Before buying
- Confirm exact enclosure fit, current limits and documented BMS compatibility.
Editorial explanation, not a product photograph, performance test or installation design.
ECO-WORTHY Cubix100 specifications at a glance
| Product name | ECO-WORTHY Cubix100 48V/51.2V-class LiFePO4 battery |
|---|---|
| Listed nominal capacity | 100Ah / 5,120Wh (5.12kWh) |
| Operating voltage range | 40–58V listed on current product page |
| Maximum charge/discharge current | 100A listed; confirm continuous/peak definition in the current manual |
| Communication/monitoring | CAN/RS485 and Bluetooth/Wi-Fi listed |
| Listed warranty | 10-year limited warranty; read the full terms and exclusions |
| Availability check | Availability could not be confirmed on Oct. 11, 2026: the U.S. page showed conflicting “Sold out” and purchase-control signals; verify the 1 Pack option and ZIP-code delivery. |
What the 5.12kWh figure means
Capacity is calculated from nominal voltage multiplied by amp-hours. A 51.2V, 100Ah label corresponds to 5,120Wh, or 5.12kWh, of nominal stored energy. That is not a promise that all 5.12kWh will be available to loads. Usable energy depends on the permitted depth of discharge, system conversion losses, reserve settings, temperature, battery condition, and manufacturer limits.
The product is often described as “48V” because it is intended for a 48V-class system, while its listed nominal voltage is 51.2V. The page gives a 40–58V range. Buyers should compare those exact values with the equipment manufacturer’s documented battery input and charge settings rather than assuming every product called 48V behaves identically.
Features ECO-WORTHY lists
Rack format
The manufacturer presents Cubix100 as a server-rack battery. Confirm the exact external dimensions, rack height, weight, included brackets, supported orientation, and cabinet depth in the current product drawing. “Rack battery” does not mean every 19-inch cabinet, rail, shelf, or mounting method is automatically appropriate. The battery and rack may be sold separately.
Monitoring and communications
The product listing describes Bluetooth/Wi-Fi monitoring and CAN/RS485 communication. These are useful specifications to investigate, not proof of compatibility with a particular inverter. The communication protocol, pinout, cable, firmware, and approved model list must match the exact system. Ask ECO-WORTHY and the inverter manufacturer to confirm the complete model numbers and supported arrangement in writing if this matters to your setup.
Current limits and operating conditions
The current product page lists a 100A maximum charge/discharge figure and a 40–58V operating range. Check the manual to see how the current rating is defined and whether it refers to continuous use, a brief limit, or another condition. Review charge and discharge temperature limits, any low-temperature charging behavior, allowed parallel configurations, and the product’s protective limits. Do not infer safe system sizing from a single headline number.
Confirm the version: Cubix100 is not Cubix100 Pro V2
This review covers the standard Cubix100 listing. ECO-WORTHY also sells a separate product currently titled Cubix100 Pro V2. Do not transfer features or documentation between them based on similar names.
| Listing | What to check before ordering |
|---|---|
| Standard Cubix100 | Its product table lists charging at 0–55°C and discharging at −20–55°C. These are different limits; the discharge range is not permission to charge below freezing. |
| Cubix100 Pro V2 | Its listing describes a low-temperature charging strategy. The seller’s FAQ says communication with the inverter or charger should be established to use that strategy. Confirm the exact revision and supported equipment in matching documentation. |
“Low-temperature charging” is not proof of a built-in heater. Obtain the model-specific description rather than assuming that a charging strategy, charging cutoff and self-heating are the same feature. This is a document check, not installation guidance.
Sources: standard Cubix100 listing and Pro V2 listing, checked October 9, 2026. Availability of the standard Cubix100 was separately rechecked October 11, 2026; this limited check does not refresh other product-documentation or specification claims.
Warranty and certification claims
ECO-WORTHY’s page lists a 10-year limited warranty and references standards/certifications including UL 1973 and UL 9540A. Those are manufacturer-page claims, not an independent certification audit by SolOffGrid. Before purchase, obtain the current warranty document and confirm the listing or certificate applies to the exact Cubix100 model and intended use. Check registration rules, installation requirements, cycle/throughput limits, exclusions, shipping terms, and who handles a claim.
What we like on paper
- Useful stated energy class: 5.12kWh is a clear 100Ah-class capacity for preliminary comparison.
- Several monitoring paths: Bluetooth/Wi-Fi and CAN/RS485 are listed, subject to exact protocol support.
- Published voltage window: the listing gives a range buyers can check against approved system documentation.
- Long stated warranty term: the 10-year limited term is worth reviewing alongside its detailed conditions, not by itself.
- Product-format focus: the rack format may be convenient where an approved rack/cabinet is planned and documented.
What remains uncertain or needs checking
- Current stock: On October 11, 2026, the U.S. product page showed conflicting “Sold out” and purchase-control signals, so availability of the standard Cubix100 1 Pack could not be confirmed. Verify the selected version and delivery eligibility.
- Exact compatibility: port names do not establish that a specific inverter can communicate with the Cubix100 BMS.
- Rack fit: confirm current drawings for dimensions, weight, rack height, rails, brackets, and cabinet requirements.
- Usable energy: nominal kWh should not be confused with energy delivered to an AC or DC load.
- Certifications and warranty: verify the official documents and the scope of each claim, including exclusions.
- Independent performance: we have not verified capacity, cycle life, thermal behavior, or app performance with physical testing.
Who might consider the Cubix100?
It is a candidate for a shopper comparing 100Ah-class, 5.12kWh server-rack batteries who already knows the system’s documented voltage and current requirements and can confirm cabinet fit and BMS communication. It is not a shortcut around system design. It may not be the right choice if you need an in-stock product immediately, if the manufacturer cannot confirm inverter compatibility, or if the physical rack requirements do not match your space.
How it compares with alternatives
VEVOR’s LPS48100-B is another 51.2V, 100Ah, 5.12kWh-class rack listing with monitoring features. VEVOR says that LPS48100-B’s BMS communication protocol is not compatible with the similarly named LPS-48100 model, so verify the exact model before buying. Renogy’s 48V 50Ah Smart LiFePO4 is a smaller 2.4kWh-class battery and a different format; it should not be compared as a one-for-one 100Ah rack module. See our best server rack battery comparison and 48V solar battery guide for the wider shortlist.
Questions to ask before ordering
- Is the exact Cubix100 version in stock and shipping to my U.S. location?
- Can the battery manufacturer confirm the exact inverter make, model, firmware, and BMS protocol?
- What is the usable capacity under the documented test and warranty conditions?
- What are the continuous charge/discharge limits and temperature limits?
- What rack dimensions, weight rating, mounting hardware, clearances, and orientation are required?
- Which current certificates and warranty documents apply to this exact model?
- What accessories or cables are included, and what is sold separately?
Frequently asked questions
Have you physically tested the ECO-WORTHY Cubix100?
No. This review examines published manufacturer information and buying considerations. We have not purchased, installed, opened, charged, discharged or lab-tested this battery. Comments about its listed features are not measured performance results, and the editorial illustrations do not show a unit tested by SolOffGrid.
Does the nominal capacity tell me exactly how long my appliances will run?
No. Runtime also depends on the load’s energy use, the manufacturer’s permitted usable capacity, reserve settings, conversion losses, temperature and battery condition. Use nominal energy for an initial comparison, not as a guarantee of delivered energy or an unqualified runtime claim. The calculator linked below is an educational planning estimate, not a measured Cubix100 result.
Will the Cubix100 work with every 48V inverter?
Do not assume that. Confirm the exact battery revision, inverter model, voltage and current requirements, and any required BMS protocol, firmware and cable arrangement in manufacturer documentation. Similar voltage labels or CAN/RS485 port names do not establish a supported pairing. Request written clarification if the documentation does not identify your combination.
Does a server-rack description guarantee cabinet fit?
No. Compare the exact enclosure dimensions, weight, approved support or mounting method, accessories and service-access requirements with the intended cabinet documentation. A generic rack description does not verify a particular cabinet or shelf. Confirm what is included and what must be purchased separately before ordering.
Is a warranty term or certification badge enough to decide?
No. Read the current warranty terms and obtain the relevant model-specific certification or listing documents. Check their scope, exclusions and applicable configuration rather than treating a headline term or badge as approval for every installation. This review is not an independent certification audit or a guarantee that a warranty claim will be accepted.
Is the availability observation a promise that I can buy it today?
No. On October 11, 2026, the official U.S. listing showed conflicting availability signals: “Sold out” alongside a purchase control. We could not confirm stock for the standard Cubix100 1 Pack. Check the exact variant, current checkout status, delivery eligibility, included items, charges and return terms before ordering. Storefront availability can change.
Does this review also cover the Cubix100 Pro V2?
No. The Pro V2 has a separate listing. Match the product title, SKU, revision and manual before buying; this review does not establish that the two versions share every feature or a supported mixed-bank configuration.
Continue with the buying checks
- Server-rack battery buying checklist — gather the model documents and selection requirements before ordering.
- Battery rack and cabinet fit guide — investigate enclosure fit and accessories separately from the battery module.
Verdict: promising specifications, but stock and documentation first
On paper, the Cubix100 offers the headline capacity and rack-format features many buyers compare in a 48V-class battery. Our recommendation is conditional rather than a blanket “best”: check current availability, read the latest manual and warranty, confirm certification scope, measure the cabinet, and obtain written system compatibility guidance. On October 11, 2026, the U.S. listing showed conflicting availability signals, so confirm the exact variant and shipping to your U.S. address before planning a purchase.
Methodology: We checked ECO-WORTHY’s current U.S. product listing and compared its published information with related manufacturer materials. We did not buy, install, open, charge, discharge, or lab-test this battery. We did not independently validate performance, compatibility, certifications, or warranty claims.
Availability rechecked: October 11, 2026. Product specifications were last checked September 30, 2026; the affiliate destination was last rechecked October 2, 2026. The official U.S. listing showed conflicting availability signals, so stock could not be confirmed. Prices, stock, specifications, product revisions, certification documents, and warranty terms can change.
Manufacturer source: ECO-WORTHY Cubix100 official product listing. For a sizing estimate, use the solar battery calculator; it does not replace professional design.