2A2P9-RE306EcoFlow Smart Inlet Box

EcoFlowInc. Date:12/25/2025 FederalCommunicationsCommissions AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 RE:CFR47§2.911(d)(5)Attestation FCCID:2A2P9-RE306 GranteeFRN:0031193519 1.EcoFlowInc.certifiesthattheequipmentforwhichauthorizationissoughtisnot“covered” equipmentprohibitedfromreceivinganequipmentauthorizationpursuanttosection 2.903oftheFCCrules. 2.EcoFlowInc.certifiesthat,thedevicedoesnothavecybersecurityand/oranti-virus softwareproducedorprovidedbyKasperskyLab,Inc.oranyofitssuccessorsand assignees,identifiedontheCoveredListinstalledonthedevice,norwillitbeinstalled bytheapplicantanytimeaftercertification. 3.EcoFlowInc.certifiesthat,asofthedateofthefilingoftheapplication,theapplicantis notidentifiedontheCoveredListasanentityproducing“covered”equipmentandis notanaffiliateorsubsidiaryofanentityidentifiedontheCoveredList. Sincerelyyours, Name:VickyGuan JobTitle:Engineer CompanyName:EcoFlowInc.

EcoFlowTechnologyInc Date:7/21/2025 FederalCommunicationsCommissions Authorizationand EvaluationDivision 7435 OaklandMills Road Columbia,MD 21046 RE: CFR 47 §2.911 (d)(7) FCC US AgentLetterof Attestation GranteeCode:2A2P9 GranteeFRN: 0031193519 To whomit may concern: FCC US Agent Agent CompanyName : EcoFlowTechnologyInc FCC FRN: 0033593781 Agent ContactName : YvonneZhou Agent US Address: 1687 114th Ave SE suite 101 Bellevue,WA 98004UnitedStates Agent Email Address: [email protected] This letter is to confirmthat we have acceptedthe responsibilityto act as US Agent on behalf of EcoFlowInc. for the abovereferencedFCC GranteeCode . We are awareof the requirementsand responsibilitiesof the applicant’s agent for serviceof processas outlinedin the FCC section2.911(d)(7)and Reportand Order FCC 22-84 paragraph63. Sincerely, AuthorizedAgent ContactPersonName : YvonneZhou Agent contactJob Title : EMC Engineer Agent Companyname : EcoFlowTechnologyInc

EcoFlow Inc. Date: 7/20/2025 Federal Communications Commissions Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 RE: CFR 47 §2.911 (d)(7) Agent Designation Attestation Grantee Code: 2A2P9 Grantee FRN: 0031193519 EcoFlow Inc.as required by section 2.911(d)(7), designates the following agent, located in the United States, for pu rposes of acting as the ap plicant’s agent for service of process. The applicant acknowledges that they will maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. The applicant further acknowledges their responsibility under CFR 47 §2.929(c) to inform the FCC whenever the agent information changes. U.S. Agent Information: Contact Person: Yvonne Zhou Company Name: EcoFlow Technology Inc Company Address: 1687 114th Ave SE suite 101 Bellevue, WA 98004 United States FCC FRN: 0033593781 Phone: (415) 691-9443 Email: [email protected] Sincerely yours, Name: Vicky Guan Job Title: Engineer Company Name: EcoFlow Inc.

EcoFlowInc. Date:10/14/2025 ULVerificationServicesInc. 47173BeniciaStreet Fremont,CA94538,USA Towhomitmayconcern: I,theundersigned,herebyauthorizeULVerificationServicesInc.toactonourbehalfinall mannersrelatingtoapplicationforequipmentauthorization,includingsigningofalldocuments relatingtothesematters.AnyandallactscarriedoutbyULVerificationServicesInc.onour behalfshallhavethesameeffectasactsofourown. I,theundersigned,herebycertifythatwearenotsubjecttoadenialoffederalbenefits,that includesFCCbenefits,pursuanttoSection5301oftheAnti-DrugAbuseActof1988,21U.S.C.§ 862becauseofaconvictionforpossessionordistributionofacontrolledsubstance. InauthorizingULVerificationServicesInc.asourrepresentative,westillrecognizethatweare responsibleto: a)fulfilltherequirementsforthescopeofcertificationrequested,includingimplementingany appropriatechangesrequestedbyULVerificationServicesTelecommunications CertificationBody(TCB)and/ortheFCC; b)supplyanyandallinformationneededfortheevaluationoftheproductsforwhich certificationissought; c)makeclaimsregardingcertificationonlyinrespectofthescopeforwhichcertificationhas beengranted; d)notuseourproductcertificationinsuchamannerastobringtheTCBorFCCinto disreputeandtonotmakeanystatementregardingproductcertificationwhichtheTCBor FCCmayconsidermisleadingorunauthorized; e)discontinueuseofalladvertisingmatterthatcontainsanyreferencetheretoandcomplies withanyandallactionsrequiredbytheFCCuponsuspensionorcancellationof certification; f)usecertificationonlytoindicatethatproductsarecertifiedinconformitywithspecified standards; g)endeavortoensurethatnocertificateorreportoranypartthereofisusedinamisleading manner,andanycopiesofthegrants/certificatesshallbereproducedintheirentirety; h)complywiththerequirementsoftheTCBandFCC,includingtheuseofmarksandlabel informationprescribedforthescopeofcertification,whenmakingreferencetoproduct certificationincommunicationmediasuchasdocuments,brochureoradvertisements; i)complywiththerequirementsforcertification,supplyanyinformationneededfor evaluationofproductstobecertifiedand,whereapplicable,makeprovisionforthe participationofobservers; j)ensurethatproductsmarketedunderthescopeoftherequestedcertificationcontinueto complywiththecertificationrequirements; k)provideasampleofaproductionunitfortestingwithin30daysoftherequestshouldthis productbeselectedaspartofeithertheTCB’sortheFCC’smarketsurveillance requirements; l)keeparecordofallcomplaintsrelatingtoproduct’scompliancewithrequirementsof relevantstandard;makerecordsavailabletoULorFCCwhenrequested;takeappropriate actionwithrespecttosuchcomplaintsandanydeficienciesfoundintheproductthataffect compliancewithrequirementsforcertification;documenttheactionstakenwithrespectto complaintsand/ordeficiencies; m)informtheTCBimmediatelyofanychangesthatmayaffectitsabilitytocomplywiththe certificationrequirements. Thisauthorizationisvaliduntilfurtherwrittennoticefromtheapplicant/specifydate. SincerelyYours, CompanyName:EcoFlowInc. ContactName:VickyGuan TitleofPerson:Engineer Address:RM401,Plant#1,RunhengIndustrialZone,FuhaiStreet,Bao'anDistrict,Shenzhen,518000, China

ShEcoFlowInc. DATE: 20 25 -12-25 EquipmentAutorisationDivision FederalCommunicationsCommission 7435 OaklandMills Road Columbia,MD 21046 Requestfor Short-TermConfidentiality Companyname:EcoFlowInc. FCCID:2A2P9-RE306 FCCPart15Certification Pursuantto Sections0.457 and 0.459 of the commissionrules, and in accordancewith the FCC Publicnoticedated June 15, 2004 (DA 04-1705),we herebyrequestshort-term confidentialityfor the followingitems prior to marketingthe device.: (1)Test Setup Photos (2)External Photos (3)Internal Photos (4)User Manual (5)Antenna Report(Onboard_ANT)_Appendix A The applicantrequeststhe exhibitsselectedaboveas short term confidentialbe withheld from public view for a periodof 180 days from the date of the Grant of Equipment Authorizationand prior to marketing.This is to avoid prematurereleaseof sensitive informationprior to marketingor releaseof the productto the public. Sincerely, CompanyName:EcoFlowInc. ContactName:Vicky Guan Title of Person: Engineer Address:RM 401,Plant#1, RunhengIndustrialZone,FuhaiStreet,Bao'anDistrict, Shenzhen,518000,China

ShEcoFlow Inc. Federal Communications Commission 7435 Oakland Mills Road Columbia MD 21046 Subject: Request for Confidentiality FCC ID: 2A2P9-RE306 To Whom It May Concern: Pursuant to the provisions of Sections 0.457 and 0.459 of the Commission’s rules (47 CFR §§ 0.457, 0.459), we are requesting the Commission to withhold the following attachments as confidential document from public disclosure indefinitely. Schematic Diagram Block Diagram Theory of Operation Bom List_Mainboard Above mentioned document contains detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give competitor an unfair advantage in the market. It is our understanding that all measurement test reports, FCC ID label format and correspondent during certification review process cannot be granted as confidential documents and those information will be available for public review once the grant of equipment authorization is issued. Best Regards Company Name: EcoFlow Inc. Contact Name: Vicky Guan Title of Person: Engineer Address: RM 401,Plant #1, Runheng Industrial Zone, Fuhai Street, Bao'an District, Shenzhen, 518000, China Date: 12/25/2025

Note: 1. Product Label applied using permanent adhesive. It is user-accessible and non- detachable. 2. The FCC label statement will be included in the user manual which will be printed on a paper insert and sold with the device. Label L ocation

The results reported herein have been performed in accordance with the laboratory’s terms of accreditation. This report shall not be reproduced except in full without the written approval of the Laboratory. The results in this report apply to the test sample(s) mentioned above at the time of the testing period only and are not to be used to indicate applicability to other similar products. FCC RF EXPOSURE REPORT For Wireless Module MODEL NUMBER: EF-ESB-002 REPORT NUMBER: 4792068200.5-RF-3 ISSUE DATE: January 7, 2026 FCC ID: 2A2P9-RE306 IC: 27618-RE306 Prepared for EcoFlow Inc. RM 401, Plant #1, Runheng Industrial Zone, Fuhai Street, Bao'an District, Shenzhen, 518000, China Prepared by UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch Room 101, Building 2, Zhihui City Phase I, No.4, Information Road, Songshan Lake, Dongguan, Guangdong, China Tel: +86 769 22038881 Fax: +86 769 33244054 Website: www.ul.com REPORT NO.: 4792068200.5-RF-3 Page 2 of 7 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch FORM No.: 10-SL-F0112 This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. Revision History Rev. Issue Date Revisions Revised By V0 January 7, 2026 Initial Issue REPORT NO.: 4792068200.5-RF-3 Page 3 of 7 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch FORM No.: 10-SL-F0112 This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. TABLE OF CONTENTS 1. ATTESTATION OF TEST RESULTS .................................................................................... 4 2. TEST METHODOLOGY ........................................................................................................ 5 3. FACILITIES AND ACCREDITATION .................................................................................... 5 4. REQUIREMENT .................................................................................................................... 6 REPORT NO.: 4792068200.5-RF-3 Page 4 of 7 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch FORM No.: 10-SL-F0112 This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. 1. ATTESTATION OF TEST RESULTS Applicant Information Company Name: EcoFlow Inc. Address: RM 401, Plant #1, Runheng Industrial Zone, Fuhai Street, Bao'an District, Shenzhen, 518000, China Manufacturer Information Company Name: EcoFlow Inc. Address: RM 401, Plant #1, Runheng Industrial Zone, Fuhai Street, Bao'an District, Shenzhen, 518000, China EUT Information EUT Name: Wireless Module Model: EF-ESB-002 Brand: ECOFLOW, EF ECOFLOW Sample Received Date: December 16, 2025 Sample Status: Normal Sample ID: 9247018 Date of Tested: December 16, 2025 to January 7, 2026 APPLICABLE STANDARDS STANDARD TEST RESULTS 447498 D04 Interim General RF Exposure Guidance v01 PASS Prepared By: Checked By: Johnson Liu Kebo Zhang Laboratory Engineer Senior Laboratory Approved By: Stephen Guo Operations Manager REPORT NO.: 4792068200.5-RF-3 Page 5 of 7 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch FORM No.: 10-SL-F0112 This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. 2. TEST METHODOLOGY The tests documented in this report were performed in accordance with FCC 47 CFR Part 2 Subpart J, section 2.1091 and KDB 447498 D01 General RF Exposure Guidance v06. 3. FACILITIES AND ACCREDITATION Accreditation Certificate A2LA (Certificate No.: 4102.01) UL Verification Services (Guangzhou) Co., Ltd. Song Shan Lake Branch. has been assessed and proved to be in compliance with A2LA. FCC (FCC Designation No.: CN1187) UL Verification Services (Guangzhou) Co., Ltd. Song Shan Lake Branch. Has been recognized to perform compliance testing on equipment subject to the Commission's Declaration of Conformity (DoC) and Certification rules ISED (Company No.: 21320) UL Verification Services (Guangzhou) Co., Ltd. Song Shan Lake Branch. has been registered and fully described in a report filed with ISED. The Company Number is 21320 and the test lab Conformity Assessment Body Identifier (CABID) is CN0046. Note 1: All tests measurement facilities use to collect the measurement data are located at Building 10, Innovation Technology Park, Song Shan Lake Hi tech Development Zone, Dongguan, 523808, China Note 2: The test anechoic chamber in UL Verification Services (Guangzhou) Co., Ltd. Song Shan Lake Branch had been calibrated and compared to the open field sites and the test anechoic chamber is shown to be equivalent to or worst case from the open field site. Note 3: For below 30MHz, lab had performed measurements at test anechoic chamber and comparing to measurements obtained on an open field site. And these measurements below 30MHz had been correlated to measurements performed on an OFS. REPORT NO.: 4792068200.5-RF-3 Page 6 of 7 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch FORM No.: 10-SL-F0112 This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. 4. REQUIREMENT LIMIT AND CALCULATION METHOD According to 447498 D04 Interim General RF Exposure Guidance v01, 2.1.4 MPE-Based Exemption An alternative to the SAR-based exemption is provided in § 1.1307(b)(3)(i)(C), for a much wider frequency range, from 300 kHz to 100 GHz, applicable for separation distances greater or equal to λ/2π, where λ is the free-space operating wavelength in meters. The MPE-based test exemption condition is in terms of ERP, defined as the product of the maximum antenna gain and the delivered maximum time-averaged power.10 For this case, a RF source is an RF exempt device if its…

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The results reported herein have been performed in accordance with the laboratory’s terms of accreditation. This report shall not be reproduced except in full without the written approval of the Laboratory. The results in this report apply to the test sample(s) mentioned above at the time of the testing period only and are not to be used to indicate applicability to other similar products. FCC 47 CFR PART 15 SUBPART C ISED RSS-247 Issue 4 TEST REPORT For Wireless Module MODEL NUMBER: EF-ESB-002 REPORT NUMBER: 4792068200.5-RF-1 ISSUE DATE: January 7, 2026 FCC ID: 2A2P9-RE306 IC: 27618-RE306 Prepared for EcoFlow Inc. RM 401, Plant #1, Runheng Industrial Zone, Fuhai Street, Bao'an District, Shenzhen, 518000, China Prepared by UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch Room 101, Building 2, No.4, Information Road, Songshan Lake, Dongguan, Guangdong, China Tel: +86 769 22038881 Fax: +86 769 33244054 Website: www.ul.com REPORT NO.: 4792068200.5-RF-1 Page 2 of 93 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch FORM NO: 10-SL-F0035 This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. Revision History Rev. Issue Date Revisions Revised By V0 January 7, 2026 Initial Issue REPORT NO.: 4792068200.5-RF-1 Page 3 of 93 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch FORM NO: 10-SL-F0035 This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. Summary of Test Results Test Item Clause Limit/Requirement Result Antenna Requirement N/A FCC Part 15.203/15.247 (c) RSS-GEN Clause 6.8 Pass AC Power Line Conducted Emission ANSI C63.10-2020, Clause 6.2 FCC Part 15.207 RSS-GEN Clause 8.8 Pass Conducted Output Power ANSI C63.10-2020, Clause 11.9.2.3.1 FCC Part 15.247 (b)(3) RSS-247 Clause 6.3.2 Pass 6dB Bandwidth and 99% Occupied Bandwidth ANSI C63.10-2020, Clause 11.8.1 FCC Part 15.247 (a)(2) RSS-247 Clause 6.3.1 (a) RSS-Gen Clause 6.7 Pass Power Spectral Density ANSI C63.10-2020, Clause 11.10.5 FCC Part 15.247 (e) RSS-247 Clause 6.3.1 (b) Pass Conducted Band edge and spurious emission ANSI C63.10-2020, Clause 11.11 FCC Part 15.247(d) RSS-247 Clause 6.6 Pass Radiated Band edge and Spurious Emission ANSI C63.10-2020, Clause 11.12 FCC Part 15.247 (d) FCC Part 15.205/15.209 RSS-247 Clause 6.6 RSS-GEN Clause 8.9 Pass Duty Cycle ANSI C63.10-2020, Clause 11.6 None; for reporting purposes only. Pass Note: For ISED, this report is also performed according to ANSI C63.10-2020 + Cor.1-2023 + C63.10a-2024 + Errata to C63.10a-2024 standards. *This test report is only published to and used by the applicant, and it is not for evidence purpose in China. *The measurement result for the sample received is <Pass> according to <FCC 47 CFR PART 15 SUBPART C ISED RSS-247 Issue 4> when <Simple Acceptance> decision rule is applied. REPORT NO.: 4792068200.5-RF-1 Page 4 of 93 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch FORM NO: 10-SL-F0035 This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. CONTENTS 1. ATTESTATION OF TEST RESULTS ...................................................................................... 6 2. TEST METHODOLOGY .......................................................................................................... 7 3. FACILITIES AND ACCREDITATION ...................................................................................... 7 4. CALIBRATION AND UNCERTAINTY ..................................................................................... 8 4.1. MEASURING INSTRUMENT CALIBRATION ............................................................ 8 4.2. MEASUREMENT UNCERTAINTY ............................................................................. 8 5. EQUIPMENT UNDER TEST .................................................................................................... 9 5.1. DESCRIPTION OF EUT ............................................................................................. 9 5.2. CHANNEL LIST .......................................................................................................... 9 5.3. MAXIMUM POWER .................................................................................................... 9 5.4. TEST CHANNEL CONFIGURATION ....................................................................... 10 5.5. THE WORSE CASE POWER SETTING PARAMETER .......................................... 11 5.6. DESCRIPTION OF AVAILABLE ANTENNAS .......................................................... 12 5.7. SUPPORT UNITS FOR SYSTEM TEST .................................................................. 13 6. MEASURING EQUIPMENT AND SOFTWARE USED ......................................................... 14 7. ANTENNA PORT TEST RESULTS ...................................................................................... 17 7.1. CONDUCTED OUTPUT POWER ............................................................................ 17 7.2. 6DB BANDWIDTH AND 99% OCCUPIED BANDWIDTH ........................................ 18 7.3. POWER SPECTRAL DENSITY ............................................................................... 20 7.4. CONDUCTED BAND EDGE AND SPURIOUS EMISSION...................................... 21 7.5. DUTY CYCLE ........................................................................................................... 23 8. RADIATED TEST RESULTS ................................................................................................ 24 8.1. RESTRICTED BANDEDGE ..................................................................................... 32 8.2. SPURIOUS EMISSIONS(1 GHZ~3 GHZ) ................................................................ 54 8.3. SPURIOUS EMISSI…

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The results reported herein have been performed in accordance with the laboratory’s terms of accreditation. This report shall not be reproduced except in full without the written approval of the Laboratory. The results in this report apply to the test sample(s) mentioned above at the time of the testing period only and are not to be used to indicate applicability to other similar products. FCC 47 CFR PART 15 SUBPART C ISED RSS-247 Issue 4 TEST REPORT For Wireless Module MODEL NUMBER: EF-ESB-002 REPORT NUMBER: 4792068200.5-RF-2 ISSUE DATE: January 7, 2026 FCC ID: 2A2P9-RE306 IC: 27618-RE306 Prepared for EcoFlow Inc. RM 401, Plant #1, Runheng Industrial Zone, Fuhai Street, Bao'an District, Shenzhen, 518000, China Prepared by UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch Room 101, Building 2, No.4, Information Road, Songshan Lake, Dongguan, Guangdong, China Tel: +86 769 22038881 Fax: +86 769 33244054 Website: www.ul.com REPORT NO.: 4792068200.5-RF-2 Page 2 of 89 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch FORM NO: 10-SL-F0035 This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. Revision History Rev. Issue Date Revisions Revised By V0 January 7, 2026 Initial Issue REPORT NO.: 4792068200.5-RF-2 Page 3 of 89 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch FORM NO: 10-SL-F0035 This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. Summary of Test Results Test Item Clause Limit/Requirement Result Antenna Requirement N/A FCC Part 15.203/15.247 (c) RSS-GEN Clause 6.8 Pass AC Power Line Conducted Emission ANSI C63.10-2020, Clause 6.2 FCC Part 15.207 RSS-GEN Clause 8.8 Pass Conducted Output Power ANSI C63.10-2020, Clause 11.9.1.2 FCC Part 15.247 (b)(3) RSS-247 Clause 6.3.2 Pass 6dB Bandwidth and 99% Occupied Bandwidth ANSI C63.10-2020, Clause 11.8.1 FCC Part 15.247 (a)(2) RSS-247 Clause 6.3.1 (a) RSS-Gen Clause 6.7 Pass Power Spectral Density ANSI C63.10-2020, Clause 11.10.2 FCC Part 15.247 (e) RSS-247 Clause 6.3.1 (b) Pass Conducted Band edge and spurious emission ANSI C63.10-2020, Clause 11.11 FCC Part 15.247(d) RSS-247 Clause 6.6 Pass Radiated Band edge and Spurious Emission ANSI C63.10-2020, Clause 11.12 FCC Part 15.247 (d) FCC Part 15.205/15.209 RSS-247 Clause 6.6 RSS-GEN Clause 8.9 Pass Duty Cycle ANSI C63.10-2020, Clause 11.6 None; for reporting purposes only. Pass Note: For ISED, this report is also performed according to ANSI C63.10-2020 + Cor.1-2023 + C63.10a-2024 + Errata to C63.10a-2024 standards. *This test report is only published to and used by the applicant, and it is not for evidence purpose in China. *The measurement result for the sample received is <Pass> according to <FCC 47 CFR PART 15 SUBPART C ISED RSS-247 Issue 4> when <Simple Acceptance> decision rule is applied. REPORT NO.: 4792068200.5-RF-2 Page 4 of 89 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch FORM NO: 10-SL-F0035 This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. CONTENTS 1. ATTESTATION OF TEST RESULTS ...................................................................................... 6 2. TEST METHODOLOGY .......................................................................................................... 7 3. FACILITIES AND ACCREDITATION ...................................................................................... 7 4. CALIBRATION AND UNCERTAINTY ..................................................................................... 8 4.1. MEASURING INSTRUMENT CALIBRATION ............................................................ 8 4.2. MEASUREMENT UNCERTAINTY ............................................................................. 8 5. EQUIPMENT UNDER TEST .................................................................................................... 9 5.1. DESCRIPTION OF EUT ............................................................................................. 9 5.2. CHANNEL LIST .......................................................................................................... 9 5.3. MAXIMUM POWER .................................................................................................... 9 5.4. TEST CHANNEL CONFIGURATION ......................................................................... 9 5.5. THE WORSE CASE POWER SETTING PARAMETER .......................................... 10 5.6. DESCRIPTION OF AVAILABLE ANTENNAS .......................................................... 10 5.7. SUPPORT UNITS FOR SYSTEM TEST .................................................................. 11 6. MEASURING EQUIPMENT AND SOFTWARE USED ......................................................... 12 7. ANTENNA PORT TEST RESULTS ...................................................................................... 15 7.1. CONDUCTED OUTPUT POWER ............................................................................ 15 7.2. 6DB BANDWIDTH AND 99% OCCUPIED BANDWIDTH ........................................ 16 7.3. POWER SPECTRAL DENSITY ............................................................................... 18 7.4. CONDUCTED BAND EDGE AND SPURIOUS EMISSION...................................... 19 7.5. DUTY CYCLE ........................................................................................................... 21 8. RADIATED TEST RESULTS ................................................................................................ 22 8.1. RESTRICTED BANDEDGE ..................................................................................... 30 8.2. SPURIOUS EMISSIONS(1 GHZ~3 GHZ) ................................................................ 40 8.3. SPURIOUS EMISSIO…

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Antenna test report Test Laboratory Shenzhen Morlab Communications Technology Co., Ltd. Address FL.1-3, Building A, FeiYang Science Park, No.8 LongChang Road, Block67, BaoAn District, ShenZhen , GuangDong Province, P. R. China Contact: +86 755 36698555 Model On-board Antenna Test Engineer Devyn Deng Test Date: 2024/6/30 Manufacturer Dongguan Youbi Electronics Co., LTD Address Building 79, New Sun Industrial City, Lincun Community, Tangxia Town, Dongguan City, Guangdong Province 1. Test procedures Standards Description of Test Item Result ANSI/ IEEE 149-2021 IEEE Recommended Practice for Antenna Measurements Compliant 2. Test Items and Equipment Test items Test equipment S Parameter 1.Return Loss 2.VSWR Network analyzer (Agilent E5071B) The whole machine of Passive parameters 1.Frequency 2.Gain 3.Radiation Pattern 1.3D microwave darkroom (6m*6m*6m) 2.Network analyzer (Agilent E5071B) 3. Test Equipment Equipement Name Serial No. Type Manufacture Cal.Date Cal.Due Date Network Analyzer MY46110140 E5071C Agilent 2024.05.30 2025.05.29 OTA Chamber TJ2235-Q1793 AMS-8923- 150 ETS 2022-11-30 2025-11-29 Antenna Measurement System 1685 EMQuest EMQ-100 V1.13 Build 21267 ETS N/A N/A 4. Name of commercial test software Software Name Serial No. Version Manufacturer Antenna Measurement System 1685 "EMQuest EMQ-100 V 1.13 Build 21267" ETS 5. The uncertainty is calculated using the methods suggested in the“Guide to the Expression of Uncertainty in Measurement" (GUM) published by ISO. When the test result is a critical value,we will use the measurement uncertainty give the judgment result based on the 95%Confidence intervals. 6. DUT Setup Photo 【Refer to Antenna Report(Onboard_ANT)_Appendix A】 7. Onboard Antenna Physical Size (unit: mm) 【Refer to Antenna Report(Onboard_ANT)_Appendix A】 8. Antenna Electrical Specification Onboard Antenna Freq 2.4~2.5GHz Gain 4.82dBi VSWR <2 Impedance 50 ohm Polarization Linear Type of Antenna PCB Antenna Outline Dimensions 17mm*14.6mm Manufacture EcoFlow Efficiency ≥57.4% Connector Type Microstrip lines Operating Temperature -40°C~+85°C Storage Temp -40°C~+85°C 9. Antenna Type & Gain Type: Onboard Antenna Onboard Antenna Frequency Gain(dBi) Efficiency(%) 2400MHz 3.73 59.71 2410MHz 3.82 58.18 2420MHz 4.04 57.38 2430MHz 4.32 58.65 2440MHz 4.37 59.48 2450MHz 4.38 60.53 2460MHz 4.65 63.39 2470MHz 4.71 62.82 2480MHz 4.75 61.84 2490MHz 4.82 61.56 2500MHz 4.79 59.53 10. Pattern and Gain Onboard Antenna (2.4-2.5GHz) PHI=0DEG PHI=90DEG Theta=90DEG