ECO-WORTHY Cubix100 48V 100Ah Server Rack LiFePO4 Battery

1st of 8 we've scored in Server-Rack and Wall Batteries

1st of 8 in 48 V Batteries

ECO-WORTHY Cubix100 48V 100Ah Server Rack LiFePO4 Battery

Name: ECO-WORTHY Cubix100 48V 100Ah Server Rack LiFePO4 Battery
Brand: ECO-WORTHY
SKU: L12L100ACUB100

SVT Score, Top

6.6

Usability6.3/10Social6.8/10The SVT Score is placed on its category's range

Versus

6.3

SVT SCORESRead review

A 5.12 kWh, 51.2 V server-rack battery with a 100 A BMS, built-in Bluetooth and WiFi, CAN and RS485, and charging above 0°C only.

$890

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SKU: L12L100ACUB100 Category: Server-Rack and Wall Batteries Brand: ECO-WORTHY

Usability

6.3 out of 10

Capacity5.0

It stores 5,120 Wh, the typical size for a 48 V battery, so it scores 5 on capacity.

Efficiency4.0

At 103 lb on Eco-Worthy's spec table it holds 49.7 Wh per pound, so it scores 4 on efficiency.

Operating Range5.0

Eco-Worthy rates its BMS at 100 A maximum continuous, 1.0C on 100 Ah, with a 50 A standard current and over-current trips at 120 A for 2 seconds and 140 A for 0.2 seconds in the manual, so it scores 5 on operating range.

Lifespan8.0

Eco-Worthy's FAQ rates it for 6,000 cycles at 80 percent depth of discharge and its Canadian spec table to at least 80 percent state of health at 0.5C, one rung down for the 80 percent depth, so it scores 8 on lifespan.

Features6.0

It has built-in Bluetooth and WiFi, CAN and RS485 ports and a BMS that stops charging below 0°C, but no heating, no published IP rating and no series connection, with up to 32 in parallel, so it scores 6 on features.

Verification8.0

Intertek's directory lists this battery, by its model name ECO-LFP4810002, as Listed to UL 1973 under Xiamen Eco-Sources Technology, it is on the California Energy Commission battery list, Eco-Worthy publishes Intertek's UL 9540A report for the model, and Intertek lists the ECOESS rack systems built from it to UL 9540, so it scores 8 on verification.

Warranty & Support8.0

Eco-Worthy's limited warranty gives it 10 years, with full replacement in years 1 and 2, repair or replacement of parts in years 3 to 5, and free repair or replacement at a price depreciated 10 percent a year in years 6 to 10, so it scores 8 on warranty and support.

Warranty and returns

Eco-Worthy's warranty page gives most products 1 year and its 12 and 24 V batteries 3 years, for the original buyer only, against 10 years on its 48 V server-rack and PowerMega batteries and 2 years on its all-in-one inverters, both tiered by age.

Price

$889.99 at eco-worthy.com.

Summary

5.12 kWh rack, above-freezing charging

The ECO-WORTHY Cubix100 (ECO-LFP4810002) is a 51.2 V, 100 Ah LiFePO4 server-rack battery for off-grid solar storage and home backup, sold as the base model beside the Cubix 100 Pro V2.

Verdict

It suits a buyer building a rack bank in a space that stays above freezing who wants closed-loop communication with the inverter, and who will not need to charge below 32°F or read the pack on a built-in screen.

Strengths

5,120 Wh in one 51.2 V rack-mount case
Bluetooth and WiFi built inplus CAN and RS485
6,000 cycles at 80 percent depth of discharge
Up to 32 in parallel for 163.84 kWh
Full unit replacement in warranty years 1 and 2

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Drawbacks

Charges only above 0°C32°F), with no heating
Six LEDs only: no screen on the battery
Passive balancingthe Pro V2 balances actively
Parallel only: no series connection
Years 6 to 10: repairor replacement at a depreciated price

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Social score

6.8 out of 10

RedditBrand-level6.0 out of 10

Reddit owners mostly report Eco-Worthy batteries holding their rated capacity and are less sure of its electronics. In an r/SolarDIY thread owners said their 100 Ah batteries tested to capacity and that two 12 V 260 Ah batteries in series stayed balanced for a year (February 2024), a UK owner measured nearly 102 Ah from a 12.8 V 100 Ah battery after a year on standby against 104.3 Ah new (June 2025), and in a Renogy-or-Eco-Worthy thread an owner called its batteries and panels fine and its charge controllers and inverters hit and miss (February 2026).

Google7.0 out of 10

Liked

Held 100 A continuous for over 15 minutes
Took repeated 130 A surges
Refused charge and discharge at about −25°C

Complaints

No built-in fire arrestors
No display screen

The Solar Lab's written review of the Cubix100 (August 2026), which links to Eco-Worthy as an affiliate and offers the discount code THESOLARLAB, found it held its rated 100 A for more than 15 minutes, took repeated 130 A surges, and would neither charge nor discharge after 24 hours in a freezer at about −25°C, and recommends it for budget builds; its video of the same tests is counted here once.

YouTube7.0 out of 10

Liked

Build quality on teardown (StoneBroke Adventure)
Did well in every performance test (Mike Builds)
10-year warranty (Mike Builds)

Complaints

No screen on the battery (Mike Builds)

StoneBroke Adventure (August 2026), who earns Amazon commission on the tagged Cubix100, ran a capacity test and teardown and called it a nice build with everything needed; Mike Builds, opening his August 2026 Cubix 100 Pro video, said his earlier test of the standard Cubix 100 did well in all performance testing, with a 10-year warranty its biggest strength.

AmazonProduct-line7.0 out of 10

Eco-Worthy's Amazon US listing for the Cubix100 (B0DP4LTRMG), one file shared with 4- and 6-pack buyers and titled Version 3 on the page, reads 4.6 from 87 ratings, 80 percent five-star and 4 percent one-star (October 2026), so it is read at line level.

User reviewsNot scored

The retailer pool is blank: Walmart lists few Eco-Worthy items, the Cubix 100 with 1 review and the others resold by third-party sellers such as DC HOUSE, and Home Depot, Lowe's and Best Buy carry no Eco-Worthy listing.

Trustpilot

Trustpilot rates www.eco-worthy.com 4.2 from 1,595 reviews on a profile Eco-Worthy claimed in April 2023 and invites its customers to, with 67 percent five-star against 20 percent one-star (October 2026).

Track record

The BBB rates Eco-Sources USA F on 6 complaints and a second, Los Angeles profile, Eco-Worthy Solar Technology, F on 7, neither accredited (October 2026).
No CPSC or Health Canada recall names Eco-Worthy or Eco-Sources, searched in October 2026.

Not countedExcluded

Not counted in any pool: eco-worthy.com's own review widget and community forum, Eco-Worthy's YouTube channel and Facebook pages, the r/EcoWorthy subreddit, its staff posts on DIY Solar Forum, or its Impact, Awin and influencer affiliate programs.

Summary

Brand-level

4.2 on Trustpilot, an F from the BBB, no recalls

Specs

Capacity4,000-5,999 Wh
AC OutputNot applicable
System Voltage48 V
Panel PowerNot applicable
Charge CurrentNot applicable
Safety ListingUL 1973 listed
Cell TypeNot applicable
Low-Temp ChargingLow-temperature cut-off
Warranty10 Years
MonitoringBluetooth built in
Weight103.0 lb

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At a glance

M8 terminals
125 A shunt-trip breaker
22.09 x 19.02 x 5.63 in
RS232 port for PC software

Company

ECO-WORTHY is the brand of Xiamen Eco-Sources Technology Co., Ltd of Xiamen, China, which its own pages date to 2007, with a US company, Eco-Sources USA, Inc., in Springfield, Missouri.

Where it sells

It sells direct from eco-worthy.com, which ships US orders from a US warehouse, and through its Amazon and eBay stores and dealers such as Off Grid Stores and Current Connected.

Description

The ECO-WORTHY Cubix100 (model ECO-LFP4810002) is a 51.2 V, 100 Ah LiFePO4 server-rack battery storing 5,120 Wh, with a 100 A BMS (100 A maximum charge and discharge, 50 A standard), a 40 to 58.4 V operating range and a 58.4 V maximum charge voltage. It charges at 0 to 55°C and discharges at −20 to 55°C. Its front panel carries M8 positive and negative terminals, a 125 A breaker with shunt trip, a power switch, a reset button, an address DIP switch, an input for an emergency stop (RSD) switch, RS485, CAN and RS232 ports, two RS485 ports for linking batteries, and six state-of-charge LEDs; Bluetooth and WiFi are built in, and it uses passive cell balancing. Up to 32 connect in parallel; it does not connect in series. It measures 22.09 x 19.02 x 5.63 in (561 x 483 x 143 mm) and weighs 103 lb. In the box: the battery, the manual, an app quick-start card, a battery-to-battery communication cable, a pair of 2 AWG parallel cables and a grounding cable. Multipacks: 2 for $1,769.99 with a free rapid stop switch, 4 for $3,519.96 with a free ESM100 battery monitor, 6 for $5,219.99 (batteries only) and 12 for $10,199.88 with two RACK6 6-layer racks with 600 A busbars. It differs from the Cubix 100 Pro V2 ($979.99, $90 more): the Cubix100 charges only above 0°C where the Pro's low-temperature cells charge from −20°C (−4°F), it shows charge on LEDs where the Pro has a 4.3-inch touchscreen, it balances passively where the Pro balances actively, it has no fire arrestors where the Pro has two, and its page claims UL 1973, UL 9540A, UL 9540 and CEC listing where the Pro's page claims none.