Manufacturer and seller images. Configuration examples may include additional equipment.
Image source: EcoFlow DELTA Max (2000), product image from ShopSolar's listing of the "2,400W / 2,016Wh" DELTA Max (unit-only SKU DELTA2000-US; 2,016Wh is the DELTA Max (2000) capacity in EcoFlow's manual); the file is named EcoFlow-DELTA-Max-1. Credit: ShopSolar. The unit alone, three-quarter view on white, no overlay. Paid link.No sellers found.
Other version: EcoFlow DELTA Max (1600) · DELTA Max (1600)The EcoFlow DELTA Max user manual V1.0 prints both the DELTA Max (2000) and (1600) tables.
Other version: EcoFlow DELTA Max · DELTA MaxThe DELTA Max manual names DELTA Max (2000) as a version; the DELTA Max record names no capacity.
Printed as "NCM 800 cycles to 80%+ capacity" in the EcoFlow DELTA Max user manual V1.0 (EN+FR), Specifications, DELTA Max (2000), captured on September 26, 2026. Printed as the Cell Chemistry value.
Official user manual: EcoFlow DELTA Max User Manual V1.0 (EN+FR) (September 24, 2026 capture) Checked · Earlier documentLocation: Specifications, DELTA Max (2000)
Documented
Converted: 2016 Wh / 1000 Wh per kWh
Printed as "2016Wh 50.4V" in the EcoFlow DELTA Max user manual V1.0 (EN+FR), Specifications, DELTA Max (2000), captured on September 26, 2026. The printed 2016 Wh expressed in kWh.
Official user manual: EcoFlow DELTA Max User Manual V1.0 (EN+FR) (September 24, 2026 capture) Checked · Earlier documentLocation: Specifications, DELTA Max (2000)
Converted
Printed as "2016Wh 50.4V" in the EcoFlow DELTA Max user manual V1.0 (EN+FR), Specifications, DELTA Max (2000), captured on September 26, 2026.
Official user manual: EcoFlow DELTA Max User Manual V1.0 (EN+FR) (September 24, 2026 capture) Checked · Earlier documentLocation: Specifications, DELTA Max (2000)
Documented
Printed as "Pure Sine Wave, 2400W total (surge 5000W), 120V~ 60Hz" in the EcoFlow DELTA Max user manual V1.0 (EN+FR), Specifications, DELTA Max (2000), captured on September 26, 2026.
Official user manual: EcoFlow DELTA Max User Manual V1.0 (EN+FR) (September 24, 2026 capture) Checked · Earlier documentLocation: Specifications, DELTA Max (2000)
Documented
Printed as "11-100V 13A, 800W Max" in the EcoFlow DELTA Max user manual V1.0 (EN+FR), Specifications, DELTA Max (2000), captured on September 26, 2026. The manual adds: "The maximum solar input current can reach 13A after upgrading the product's firmware to 1.6.2.19 or above."
Official user manual: EcoFlow DELTA Max User Manual V1.0 (EN+FR) (September 24, 2026 capture) Checked · Earlier documentLocation: Specifications, DELTA Max (2000)
Documented
Printed as "11-100V 13A, 800W Max" in the EcoFlow DELTA Max user manual V1.0 (EN+FR), Specifications, DELTA Max (2000), captured on September 26, 2026. The manual adds: "The maximum solar input current can reach 13A after upgrading the product's firmware to 1.6.2.19 or above."
Official user manual: EcoFlow DELTA Max User Manual V1.0 (EN+FR) (September 24, 2026 capture) Checked · Earlier documentLocation: Specifications, DELTA Max (2000)
Documented
Printed as "NCM 800 cycles to 80%+ capacity" in the EcoFlow DELTA Max user manual V1.0 (EN+FR), Specifications, DELTA Max (2000), captured on September 26, 2026.
Official user manual: EcoFlow DELTA Max User Manual V1.0 (EN+FR) (September 24, 2026 capture) Checked · Earlier documentLocation: Specifications, DELTA Max (2000)
Documented
Converted: 48 lb x 0.45359237 kg/lb, rounded to 0.01 kg
Printed as "Approximately 48lbs 19.6x9.5x12in" in the EcoFlow DELTA Max user manual V1.0 (EN+FR), Specifications, DELTA Max (2000), captured on September 26, 2026. Printed as approximate, in pounds only.
Official user manual: EcoFlow DELTA Max User Manual V1.0 (EN+FR) (September 24, 2026 capture) Checked · Earlier documentLocation: Specifications, DELTA Max (2000)
Converted
1 spec not documented yet: usable capacityHelp fill in ›
Printed as "NCM 800 cycles to 80%+ capacity" in the EcoFlow DELTA Max user manual V1.0 (EN+FR), Specifications, DELTA Max (2000), captured on September 26, 2026. Printed as the Cell Chemistry value.
Official user manual: EcoFlow DELTA Max User Manual V1.0 (EN+FR) (September 24, 2026 capture) Checked · Earlier documentLocation: Specifications, DELTA Max (2000)
Documented
Converted: 2016 Wh / 1000 Wh per kWh
Printed as "2016Wh 50.4V" in the EcoFlow DELTA Max user manual V1.0 (EN+FR), Specifications, DELTA Max (2000), captured on September 26, 2026. The printed 2016 Wh expressed in kWh.
Official user manual: EcoFlow DELTA Max User Manual V1.0 (EN+FR) (September 24, 2026 capture) Checked · Earlier documentLocation: Specifications, DELTA Max (2000)
Converted
Printed as "2016Wh 50.4V" in the EcoFlow DELTA Max user manual V1.0 (EN+FR), Specifications, DELTA Max (2000), captured on September 26, 2026.
Official user manual: EcoFlow DELTA Max User Manual V1.0 (EN+FR) (September 24, 2026 capture) Checked · Earlier documentLocation: Specifications, DELTA Max (2000)
Documented
Printed as "Pure Sine Wave, 2400W total (surge 5000W), 120V~ 60Hz" in the EcoFlow DELTA Max user manual V1.0 (EN+FR), Specifications, DELTA Max (2000), captured on September 26, 2026.
Official user manual: EcoFlow DELTA Max User Manual V1.0 (EN+FR) (September 24, 2026 capture) Checked · Earlier documentLocation: Specifications, DELTA Max (2000)
Documented
Printed as "11-100V 13A, 800W Max" in the EcoFlow DELTA Max user manual V1.0 (EN+FR), Specifications, DELTA Max (2000), captured on September 26, 2026. The manual adds: "The maximum solar input current can reach 13A after upgrading the product's firmware to 1.6.2.19 or above."
Official user manual: EcoFlow DELTA Max User Manual V1.0 (EN+FR) (September 24, 2026 capture) Checked · Earlier documentLocation: Specifications, DELTA Max (2000)
Documented
Printed as "11-100V 13A, 800W Max" in the EcoFlow DELTA Max user manual V1.0 (EN+FR), Specifications, DELTA Max (2000), captured on September 26, 2026. The manual adds: "The maximum solar input current can reach 13A after upgrading the product's firmware to 1.6.2.19 or above."
Official user manual: EcoFlow DELTA Max User Manual V1.0 (EN+FR) (September 24, 2026 capture) Checked · Earlier documentLocation: Specifications, DELTA Max (2000)
Documented
Printed as "NCM 800 cycles to 80%+ capacity" in the EcoFlow DELTA Max user manual V1.0 (EN+FR), Specifications, DELTA Max (2000), captured on September 26, 2026.
Official user manual: EcoFlow DELTA Max User Manual V1.0 (EN+FR) (September 24, 2026 capture) Checked · Earlier documentLocation: Specifications, DELTA Max (2000)
Documented
Published claims and calculations are not independently tested lifetime output.
Converted: 48 lb x 0.45359237 kg/lb, rounded to 0.01 kg
Printed as "Approximately 48lbs 19.6x9.5x12in" in the EcoFlow DELTA Max user manual V1.0 (EN+FR), Specifications, DELTA Max (2000), captured on September 26, 2026. Printed as approximate, in pounds only.
Official user manual: EcoFlow DELTA Max User Manual V1.0 (EN+FR) (September 24, 2026 capture) Checked · Earlier documentLocation: Specifications, DELTA Max (2000)
Converted
Converted: 19.6 x 9.5 x 12 in x 25.4 mm/in, rounded to 0.1 mm
Printed as "Approximately 48lbs 19.6x9.5x12in" in the EcoFlow DELTA Max user manual V1.0 (EN+FR), Specifications, DELTA Max (2000), captured on September 26, 2026. Printed in inches without axis labels; recorded in printed order.
Official user manual: EcoFlow DELTA Max User Manual V1.0 (EN+FR) (September 24, 2026 capture) Checked · Earlier documentLocation: Specifications, DELTA Max (2000)
Calculated
Printed as "68°F to 86°F(20°C to 30°C) -4°F to 113°F (-20°C to 45°C) 32°F to 113°F(0°C to 45°C) -4°F to 113°F (-20°C to 45°C)" in the EcoFlow DELTA Max user manual V1.0 (EN+FR), Specifications, DELTA Max (2000), captured on September 26, 2026. The table prints its labels and values in separate runs; the four ranges are matched to the Optimal Operating, Discharge, Charge and Storage labels by order.
Official user manual: EcoFlow DELTA Max User Manual V1.0 (EN+FR) (September 24, 2026 capture) Checked · Earlier documentLocation: Specifications, DELTA Max (2000)
Documented
Printed as "68°F to 86°F(20°C to 30°C) -4°F to 113°F (-20°C to 45°C) 32°F to 113°F(0°C to 45°C) -4°F to 113°F (-20°C to 45°C)" in the EcoFlow DELTA Max user manual V1.0 (EN+FR), Specifications, DELTA Max (2000), captured on September 26, 2026. The table prints its labels and values in separate runs; the four ranges are matched to the Optimal Operating, Discharge, Charge and Storage labels by order.
Official user manual: EcoFlow DELTA Max User Manual V1.0 (EN+FR) (September 24, 2026 capture) Checked · Earlier documentLocation: Specifications, DELTA Max (2000)
Documented
Printed as "68°F to 86°F(20°C to 30°C) -4°F to 113°F (-20°C to 45°C) 32°F to 113°F(0°C to 45°C) -4°F to 113°F (-20°C to 45°C)" in the EcoFlow DELTA Max user manual V1.0 (EN+FR), Specifications, DELTA Max (2000), captured on September 26, 2026. The table prints its labels and values in separate runs; the four ranges are matched to the Optimal Operating, Discharge, Charge and Storage labels by order.
Official user manual: EcoFlow DELTA Max User Manual V1.0 (EN+FR) (September 24, 2026 capture) Checked · Earlier documentLocation: Specifications, DELTA Max (2000)
Documented
Printed as "Supports up to 2 DELTA Max Smart Extra Batteries (sold separately)" in the EcoFlow DELTA Max user manual V1.0 (EN+FR), Specifications, DELTA Max (2000), Additional Connections, captured on September 26, 2026.
Official user manual: EcoFlow DELTA Max User Manual V1.0 (EN+FR) (September 24, 2026 capture) Checked · Earlier documentLocation: Specifications, DELTA Max (2000), Additional Connections
Documented
Printed as "X-Stream Fast Charge 1800W Max, 15A" in the EcoFlow DELTA Max user manual V1.0 (EN+FR), Specifications, DELTA Max (2000), captured on September 26, 2026. Printed for X-Stream fast AC charging.
Official user manual: EcoFlow DELTA Max User Manual V1.0 (EN+FR) (September 24, 2026 capture) Checked · Earlier documentLocation: Specifications, DELTA Max (2000)
Documented
Printed as "Pure Sine Wave, 2400W total (surge 5000W), 120V~ 60Hz" in the EcoFlow DELTA Max user manual V1.0 (EN+FR), Specifications, DELTA Max (2000), captured on September 26, 2026. AC (x6) total, pure sine wave.
Official user manual: EcoFlow DELTA Max User Manual V1.0 (EN+FR) (September 24, 2026 capture) Checked · Earlier documentLocation: Specifications, DELTA Max (2000)
Documented
Printed as "2016Wh 50.4V" in the EcoFlow DELTA Max user manual V1.0 (EN+FR), Specifications, DELTA Max (2000), captured on September 26, 2026. Printed with the 50.4V battery voltage.
Official user manual: EcoFlow DELTA Max User Manual V1.0 (EN+FR) (September 24, 2026 capture) Checked · Earlier documentLocation: Specifications, DELTA Max (2000)
Documented
Printed as "11-100V 13A, 800W Max" in the EcoFlow DELTA Max user manual V1.0 (EN+FR), Specifications, DELTA Max (2000), captured on September 26, 2026. The manual adds: "The maximum solar input current can reach 13A after upgrading the product's firmware to 1.6.2.19 or above."
Official user manual: EcoFlow DELTA Max User Manual V1.0 (EN+FR) (September 24, 2026 capture) Checked · Earlier documentLocation: Specifications, DELTA Max (2000)
Documented
Printed as "Pure Sine Wave, 2400W total (surge 5000W), 120V~ 60Hz" in the EcoFlow DELTA Max user manual V1.0 (EN+FR), Specifications, DELTA Max (2000), captured on September 26, 2026. Printed as surge; no duration is stated.
Official user manual: EcoFlow DELTA Max User Manual V1.0 (EN+FR) (September 24, 2026 capture) Checked · Earlier documentLocation: Specifications, DELTA Max (2000)
Documented
Published claims and calculations, not independent test results.
Archived copy captured on 2026-10-10.
Location: Recall Details: Description, Remedy, Incidents/Injuries, Sold At
Retrieved
Recorded document/effective date: Oct 9, 2025
The U.S. Consumer Product Safety Commission's recall notice, recall number 26-010, dated October 9, 2025, captured on October 10, 2026. It describes the recalled product as EcoFlow Delta Max 2000 Model EFD310 Power Stations, with "EFD310" and "EcoFlow DELTA Max (2000)" printed on the nameplate on the underside, and states the remedy as a free repair in the form of a firmware update. It is a regulator notice, not a test of the product.
Location: 1.1 Specifications of DELTA Max (2000) and 1.2 Specifications of DELTA Max (1600), Input Ports, Solar Charger
Retrieved
EcoFlow DELTA Max user manual (the download center titles it DELTA Max 1600), preserved byte for byte, captured on September 24, 2026; the revision is whatever the URL served on that date and no later revision was checked. It was found through the EcoFlow US download center listing for the product (api-a.ecoflow.com download list behind ecoflow.com/us/support/download). The manual prints separate tables for DELTA Max (2000) and DELTA Max (1600); both print the same solar charger figure.
Archived copy of a document published by EcoFlow. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.
Archived copy, unaltered, kept as a record of what EcoFlow published. Original address: https://websiteoss.ecoflow.com/cms/upload/2024/9/27/EcoFlow%20DELTA%20Max%20-User%20Manual%20V1.0%20(EN%2BFR)_1727409647535.pdf. Copyright and takedown
Embedded dates are file metadata, not independent proof of publication.
SHA-256: 1e4831fd30c11f2295efcfb89e9b6a660e36577e8fe4010016c9f47efb210fc8
Earlier revisions, archived captures and copies published by someone other than the manufacturer. Every one stays reachable.
Archived copy of a document published by EcoFlow. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.
Archived copy, unaltered, kept as a record of what EcoFlow published. Original address: https://websiteoss.ecoflow.com/cms/upload/2024/9/27/EcoFlow%20DELTA%20Max%20-User%20Manual%20V1.0%20(EN%2BFR)_1727409647535.pdf. Copyright and takedown
Embedded dates are file metadata, not independent proof of publication.
SHA-256: 1e4831fd30c11f2295efcfb89e9b6a660e36577e8fe4010016c9f47efb210fc8
No warranty terms on file.
No sellers found.
No seller price history.
Recent reviews count from the latest approved revision. Verified reviews carry 19× the weight. Select a period to filter.
Showing 1 of 1 reviews
I own two of the Ecoflow Delta Max units and each one has two expansion batteries. I originally bought these for potential grid-down scenarios back in the "summer of love".... (2020). All pieces are updated to the latest firmware, and I put a discharge/recharge cycle on them at least once a year. I recently took my refrigerators off-grid and using one power station setup is working well, being charged by 800W of solar on my semi-flat roof. I can charge via grid if I ever run out of sunlight, but not much chance of that in the Arizona desert.
The Evidence score uses the priorities you choose. It counts published documents, such as certificates and warranty terms, and it compares a documented figure with the best documented figure of the same kind. It does not count owner reviews, and it is not a verdict on product quality or on how many people have reviewed it. A low score can mean little is documented, or that a documented figure is below the best of its kind. Undisclosed data scores 0.
Missing details. This number counts only the evidence recorded so far. The source review for this product is not finished, or the maker has not disclosed enough, so the number can only go up.
Missing for this product: Certificates evidence needed; Warranty term needed; Warranty energy disclosure evidence needed; Cell model disclosure evidence needed.
Power stations · 120 V AC · Rated capacity
The warranty term and the lifetime energy are each scored against the best documented value for a power station: a value earns its share of that best, times the weight. A documented value always earns points; an undisclosed one earns 0.
Cycle rating disclosed · 20% weight
Documented cycle rating earns 20% of this criterion. More evidence is needed to compare lifetime MWh per kWh.
20 × 0.2 = 4 points.
Official user manual: EcoFlow DELTA Max User Manual V1.0 (EN+FR) (September 24, 2026 capture) Checked · Earlier documentResearch pending, 0 points: Certificates, Warranty term, Warranty energy disclosure, Cell model disclosure.
Computed from public specifications and evidence records. Warranty duration is not service quality; certificate evidence points are not a safety rating. Compatibility and installation limits still apply.
No certificates on file. Certificate guide
No sourced accessories or replacement parts listed yet.
Model number the U.S. Consumer Product Safety Commission's recall notice 26-010 gives for the DELTA Max 2000; it states that "EFD310" and "EcoFlow DELTA Max (2000)" are printed on the nameplate on the underside.
Issuer record: U.S. Consumer Product Safety Commission recall notice 26-010: EcoFlow Technology Recalls Delta Max 2000 Power Stations Due to Risk of Serious Burn Injury and Fire Hazard (October 9, 2025) October 9, 2025 · Checked · Earlier document2 other versions recorded
No historical observations recorded yet.
No discussions linked yet. Search DIY Solar Forum
CPSC reports that the power stations may overheat and ignite, posing a risk of serious burn injury and fire hazard. EcoFlow had received six reports of units catching fire, with property damage totaling over $850,000. About 25,030 units were sold on Costco.com, Amazon.com and Ecoflow.com from July 2022 through May 2025. The remedy is a free repair in the form of a firmware update: CPSC says to stop using the power station immediately and contact EcoFlow for instructions.
Applies to the DELTA Max 2000, Model EFD310, only; the DELTA Max (1600) is not named. EcoFlow's own recall notice (October 9, 2025) states "No other models are affected" and that the update is complete when the firmware version shows 1.6.2.81 or above. Its figures differ from CPSC's in two places: it prints about 25,032 units (CPSC: about 25,030) and phone hours of 9 a.m. to 6 p.m. ET (CPSC: 9 a.m. to 4 p.m. ET).
CPSC recall 26-010Source checked
3.5 (18)Something wrong that is not one of the values above?
Prices · price basis. * Calculated; estimates labeled. Value needs confirmation; select it for the reason.
