Brand comparison
EG4 vs ECO-WORTHY
EG4 scores 6.4 across 9 products; ECO-WORTHY scores 5.6 across 19. They overlap in all-in-one off-grid inverters. That is 67% of what EG4 sells and 21% of what ECO-WORTHY sells. EG4 leads on verification, ECO-WORTHY on operating range.
All 9 EG4 products
EG4
9 of 9 products scored · $450 – $4,000
Buy Now- Verification — 8.0 against 2.0
All 20 ECO-WORTHY products
ECO-WORTHY
19 of 20 products scored · $77 – $3,800
Buy Now- Operating Range — 5.0 against 3.0
Across everything we scored, EG4 sits 0.85 ahead — led by verification.
Both brands also sell into Server-Rack and Wall Batteries and Charge Controllers. Neither side carries enough scored products there for a median we would publish, so this comparison does not cover them.
Brand verdict
ahead · +0.85 (6.4 vs 5.6)
Pick EG4 when
Verification matters most8.0vs2.0
Pick ECO-WORTHY when
Operating range matters most5.0vs3.0
Scored 14 October 2026 from published specs and owner reviews. We don't buy or test units. How we score
Most common complaints
EG4 6000XP 48V Split-Phase Off-Grid Inverter
Overall score 6.8- Original unit failed and was replaced under warranty
- Clunky screen and hard-to-navigate app
- About 80 W draw at minimal load
ECO-WORTHY Liber 6kP 48V Split-Phase Off-Grid Inverter
Overall score 6.0- Firmware update works only in a strict sequence
- Default battery-to-mains switch voltage too low for LiFePO4
- Measured 84 W idle draw, 60 W in ECO mode
From owner reviews of each brand's top-scored product in All-in-One Off-Grid Inverters.
Usability EG4 and ECO-WORTHY, median scores 0 to 10
Median scores on a 0–10 scale.
VerificationEG4: 8 (higher)ECO-WORTHY: 2
EG4 top-scored: 6000XP 48V Split-Phase Off-Grid Inverter
- ETL Listed to UL 1741 and CSA C22.2 No. 107.1 as EG4-6000XP
ECO-WORTHY top-scored: Liber 6kP 48V Split-Phase Off-Grid Inverter
- SGS certificate to UL 1741 published, but no directory lists it
- Certificate: SGSNA/26/GZ/00196X, held by Duzheng Clean Energy
Warranty & SupportEG4: 7 (higher)ECO-WORTHY: 1
EG4 top-scored: 6000XP 48V Split-Phase Off-Grid Inverter
- 5 years of parts or product replacement, not prorated
- Condition: needs registration or authorised-seller proof
ECO-WORTHY top-scored: Liber 6kP 48V Split-Phase Off-Grid Inverter
- Manual states 1 year, against 2 years tiered on the policy page
CapacityEG4: 10 (higher)ECO-WORTHY: 5
EG4 top-scored: 6000XP 48V Split-Phase Off-Grid Inverter
- 6,000 W continuous from battery, on the 6,000 to 7,999 W rung
- Output: 120/240 V split phase from one unit, 25 A at 240 V
ECO-WORTHY top-scored: Liber 6kP 48V Split-Phase Off-Grid Inverter
- 6,000 W continuous, on the 6,000 to 7,999 W rung for a 48 V all-in-one
FeaturesEG4: 9 (higher)ECO-WORTHY: 6
EG4 top-scored: 6000XP 48V Split-Phase Off-Grid Inverter
- Two MPPTs, split phase, 16 in parallel, CAN or RS485, Wi-Fi, 115 A AC charger
- Solar: two 17 A trackers, 8,000 W utilized, 10,000 W recommended array
- Transfer: under 15 ms for one unit, under 30 ms in parallel
- Battery: up to 140 A discharge and 125 A charge, 115 A from AC
ECO-WORTHY top-scored: Liber 6kP 48V Split-Phase Off-Grid Inverter
- 120/240 V split phase from one unit, CAN or RS485, Wi-Fi and Bluetooth
- Also: 10 ms transfer, up to 6 in parallel, 100 A AC charger
- Solar: one MPPT tracker rated 9,000 W, 500 V max Voc, 120 A PV charging
- Conflict: page lists 180-280 VAC input; spec table and manual say 90-140 VAC
Operating RangeEG4: 3ECO-WORTHY: 5 (higher)
EG4 top-scored: 6000XP 48V Split-Phase Off-Grid Inverter
- 12,000 W peak for about 3.5 seconds, 2.0 times the 6,000 W rating
- Surge: also 11,000 W for about 5 seconds; 95 A locked rotor
- Temperature: runs from 32 to 113 °F at under 58 dB
ECO-WORTHY top-scored: Liber 6kP 48V Split-Phase Off-Grid Inverter
- 12,000 W peak, 2.0 times its continuous rating
Same score
EfficiencyEG4: 6ECO-WORTHY: 6
EG4 top-scored: 6000XP 48V Split-Phase Off-Grid Inverter
- 93 percent battery efficiency; no no-load draw published, so capped at 6
- Standby: about 50 W on battery, under 30 W on PV, under 50 W on AC
ECO-WORTHY top-scored: Liber 6kP 48V Split-Phase Off-Grid Inverter
- 93 percent battery inversion efficiency scored alone, capped at 6
- Missing: no published no-load draw; one owner measured 84 W
Scored for one brand only
- LifespanEG4: not scoredECO-WORTHY: 8
Social score about EG4 and ECO-WORTHY
Independent sources pooled per brand. N of M = how many scored products carry the brand-level reading shown, out of all scored.
RedditEG4: 5ECO-WORTHY: 6 (higher)
EG4
Read the full summary
- Overall: Reddit owners mostly rate EG4 hardware above its support
- Support: an r/SolarDIY owner of a 12kPV and WallMount batteries called the hardware solid but had gone three months since January without a fix from EG4 technical support for a software issue (April 2026)
- Failure: an r/diySolar owner whose EG4 18 kW hybrid inverter stopped working after about a year got no reply by phone or support request (December 2025)
- Installer: an r/SolarDIY installer who fitted an EG4 system bought from Signature Solar on a neighboring ranch called it DIY-friendly once the commissioning is understood (March 2025)
Brand rollup across scored products. 2 of 9 scored products carry this reading.
ECO-WORTHY
Read the full summary
- Overall: Reddit owners mostly report Eco-Worthy batteries holding their rated capacity and are less sure of its electronics
- Capacity held: in r/SolarDIY owners said their 100 Ah batteries tested to capacity, and two 12 V 260 Ah batteries in series stayed balanced for a year (February 2024)
- 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)
- Electronics: 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)
Brand rollup across scored products. 13 of 19 scored products carry this reading.
GoogleEG4: 6 (higher)ECO-WORTHY: 5
ECO-WORTHY
Read the full summary
- Inverters: on DIY Solar Forum, an owner running two Eco-Worthy 5000 W inverters in split phase reported them working fine after a year (January 2025)
- Panels: a buyer of twelve 410 W panels found 7 underperforming and waited about 40 days for replacements (August 2025)
- Batteries: an owner of five 12 V 280 Ah batteries reported 3 faulty from the start (August 2025)
- The Solar Lab: carries an Eco-Worthy affiliate link and a discount code The 48 V server-rack battery handled surges beyond its rating but failed its low-temperature cut-off test, and calls to support went to voicemail (2025)
Brand rollup across scored products. 4 of 19 scored products carry this reading.
Same score
YouTubeEG4: 7ECO-WORTHY: 7
EG4
Read the full summary
- Disclosure: every tester found carries a Signature Solar tie
- Gavin Stone DIY Homestead: tore down and tested the WallMount 314Ah Indoor in a video marked as paid promotion with a Signature Solar coupon code and affiliate links (November 2025, about 18,000 views)
- Country Living Experience: links Signature Solar with a referral code and a $50 coupon Reviewed the WallMount 314Ah (January 2026, about 16,000 views) and load-tested a FlexBOSS21 after a year (June 2026, about 6,400 views)
- Mikes Solar Garage: gives a Signature Solar discount code Reviewed a 12000XP after a year powering his workshop and home off-grid (June 2026, about 16,700 views)
Brand rollup across scored products. 1 of 9 scored products carry this reading.
ECO-WORTHY
Read the full summary
- Ties: every tester found carries a tie
- Will Prowse: his videos disclose paid promotion or free product and carry affiliate links Eco-Worthy's $799 48 V server-rack battery passed his deep-dive tests (2025, about 154,000 views)
- Mike Builds: Cubix 100 video marked as paid promotion, linking Eco-Worthy's affiliate program Measured 99.08 Ah at 0.2C and called it a beast (July 2026, about 218,000 views)
- There's A Trick For That: links the battery through Amazon affiliate links Drew 315 Ah, 105 percent of rating, from a 12 V 300 Ah (April 2026, about 25,000 views)
Brand rollup across scored products. 11 of 19 scored products carry this reading.
Scored for one brand only
AmazonEG4: not scoredECO-WORTHY: 7
ECO-WORTHY
Read the full summary
- Store: Eco-Worthy's Amazon store shows no store-wide rating
- Largest listings: 4.4 from 647 ratings for the 12 V 100 Ah battery and 4.4 from 576 for the 400 W solar kit (October 2026)
Brand rollup across scored products. 2 of 19 scored products carry this reading.
Not enough data for either brand
- Owner reviewsEG4: not scoredECO-WORTHY: not scored
The scores above are our reading of the evidence below. This is the evidence.
Safety listings are recorded per product from the certifier's own directory, by model, not from the maker's wording. Most of the listings in this category can be checked in Intertek's directory of listed products.
Warranty terms
EG4
9 of 9
ECO-WORTHY
19 of 19
What only EG4 sells — and only ECO-WORTHY
Not a loss for either brand. If you need one of these, the choice is already made.
Only EG4
Nothing outside the shared categories.
Best EG4 vs best ECO-WORTHY, category by category
The three best-scoring products each brand sells in every category they both compete in, ranked by overall score.
All-in-One Off-Grid Inverters
See all All-in-One Off-Grid Inverters products
1st of 14 in All-in-One
Strengths
- Split phase from one unit
- Stacks up to 16 units
- Two MPPTs with high-voltage solar input
- Strong AC and solar charging
Drawbacks
- Off-grid and backup onlyno grid export
- Idle draw while inverting unpublished
- Slower transfer in parallel
- Indoor installation only
6th of 14 in All-in-One
Strengths
- Split phase from one unit
- Stacks up to 6 units for 36 kW
- Large high-voltage PV input
- Strong AC charger and fast transfer
Drawbacks
- AC input range stated two ways
- No published idle drawone owner measured 84 W
- Warranty term stated two ways
- Indoor use only
2nd of 14 in All-in-One
Strengths
- Full rated output from battery alone
- Split phase from one unit
- Large high-voltage solar input
- Outdoor-rated NEMA 4X enclosure
Drawbacks
- Generator input needs the GridBOSS
- Only a standby idle figure published
- Grid input stated two ways
- Parallel limit stated two ways
7th of 14 in All-in-One
Strengths
- 18,000 W three-phase output
- 360 A charging from PV or AC
- Large dual-MPPT solar input
- High rated efficiency in the manual
Drawbacks
- No 120/240 V split phase
- No no-load draw published
- Not on Eco-Worthy's warranty table
- Manual lists the Wi-Fi stick as optional
3rd of 14 in All-in-One
Strengths
- Full output from battery alone
- Large high-voltage solar input
- Big grid bypass and generator input
- Parallels up to 10 units
Drawbacks
- Loud for a living space
- Little surge without PV
- No AC charger current published
- Enclosure rating stated two ways
9th of 14 in All-in-One
Strengths
- Stacks up to 6 units for 30 kW
- Split phase from two units
- High-voltage MPPT input
- Fast transferper the manual
Drawbacks
- 120 V only from one unitdespite the marketing
- Efficiency stated two ways
- Bypass rating stated two ways
- No published no-load draw
EG4 vs ECO-WORTHY: the numbers
EG4 vs ECO-WORTHY: common questions
Is EG4 or ECO-WORTHY better?
EG4 6.4 from 9 scored products; ECO-WORTHY 5.6 from 19.
What is the biggest difference between EG4 and ECO-WORTHY?
Verification: EG4 medians 8.0, ECO-WORTHY medians 2.0 (EG4 by 6.0).
Which is better for warranty & support, EG4 or ECO-WORTHY?
EG4 on warranty & support — EG4 7.0, ECO-WORTHY 1.0.
Which is better for capacity, EG4 or ECO-WORTHY?
EG4 on capacity — EG4 10.0, ECO-WORTHY 5.0.
What does ECO-WORTHY make that EG4 does not?
ECO-WORTHY sells lifepo4 batteries, rigid solar panels, flexible solar panels, and power inverters; EG4 does not, in the products we scored.
Which EG4 and ECO-WORTHY all-in-one off-grid inverters should I buy?
EG4: EG4 6000XP 48V Split-Phase Off-Grid Inverter. ECO-WORTHY: ECO-WORTHY Liber 6kP 48V Split-Phase Off-Grid Inverter.
How does Stuff VS Things score EG4 and ECO-WORTHY?
Our own product medians: 9 EG4 and 19 ECO-WORTHY. A criterion is compared only where both brands clear the floor.
Other comparisons
Scores calculated 14 October 2026 · Products excluded where fewer than two independent sources cover them · · How we score