2BS9K-EV12-140LiFePO4 Battery

DualPurposeBattery Model:DubleEV12-30/DubleEV12-60 DubleEV12-105/DubleEV12-140 -1- VEVORSupportCenter 1 Duble EV12-30 2 Duble EV12-60 3 Duble EV12-105 4 Duble EV12-140 -2- DubleEV12-30DubleEV12-60 DubleEV12-105DubleEV12-140 Thisistheoriginalinstruction,pleasereadallmanualinstructions carefullybeforeoperating.VEVORreservesaclearinterpretationofour usermanual.Theappearanceoftheproductshallbesubjecttothe productyoureceived.Pleaseforgiveusthatwewon'tinformyouagainif thereareanytechnologyorsoftwareupdatesonourproduct. DualPurposeBattery -3- Warning-Toreducetheriskofinjury,usermustread instructionsmanualcarefully. ThisdevicecomplieswithPart15oftheFCCRules.Operation issubjecttothefollowingtwoconditions:(1)Thisdevicemay notcauseharmfulinterference,and(2)thisdevicemustaccept anyinterferencereceived,includinginterferencethatmay causeundesiredoperation. ThisproductissubjecttotheprovisionofEuropeanDirective 2012/19/EC.Thesymbolshowingawheeliebincrossed throughindicatesthattheproductrequiresseparaterefuse collectionintheEuropeanUnion.Thisappliestotheproduct andallaccessoriesmarkedwiththissymbol.Productsmarked assuchmaynotbediscardedwithnormaldomesticwaste,but mustbetakentoacollectionpointforrecyclingelectricaland electronicdevices Instructions TheseproductsadoptLifePO4batterywiththehighestcost performanceandself-designedBMSsystem.Supportparalleluse,isan idealchoiceforoutdoor,smallenergystorage,shipsandotherfields. BMSisbuiltintothebatterysystem,whichisresponsibleforcollectingand analyzingthevoltage,temperatureandcurrentofthesinglecell.Ithasthe functionsofover-voltageprotection,under-voltageprotection,high temperatureprotection,lowtemperatureprotection,shortcircuitprotection andcellbalance. -4- Model Duble EV12-30 Duble EV12-60 Duble EV12-105 Duble EV12-140 Nominal Voltage 12.8V Capacity30Ah±3%60Ah±3%105Ah±3%140Ah±3% Cell3.2V30Ah3.2V60Ah3.2V105Ah3.2v70Ah CellsGrouping4S1P4S1P4S1P4S2P Dimension DubleEV12-30DubleEV12-60 DubleEV12-105DubleEV12-140 -5- Model Duble EV12-30 Duble EV12-60 Duble EV12-105 Duble EV12-140 RatedVoltage 12.8V RatedCapacity 30Ah±3%60Ah±3%105Ah±3%140Ah±3% RatedEnergy 384Wh768Wh1344Wh1792Wh RecommendedCharging Current 15A30A52.5A70A MaximumChargingCurrent 30A60A105A140A RecommendedContinuous DischargeCurrent 15A30A52.5A70A MaximumDischarging Current 30A60A105A140A ColdStartCurrent 600CCA800CCA1000CCA1000CCA PeakDischargeCurrent 720A@2S960A@2S1200A@2S1200A@2S DischargeCut-offVoltage 10.0V RecommendedCharging Voltage 13.6-13.8V MaximumChargingVoltage 14.6V Torque 10N.m-12N.m ThermalManagement Naturecooling IPGrade IP67 OperatingHumidity 60±25%R.H. Operating Temperature Charging 0～50°C-10°C～50°C Discharging -25°C～65°C -6- Performance  Highacquisitionofvoltagedatacollection(5mv).  CustomizedBMSfunctionandparameter.  Intelligentequalizationmanagement.  OverCharging,OverDischarging,OverTemperature,ShortCircuit Protection.  Low-temperaturechargingheatingfunction:Beforechargingatlow temperatures,itwillfirstheatuptoadapttotheuseinlow-temperature conditions!(ThisfunctionisonlyapplicabletotheDubleEV12-140 model)  ThisBMSsupportsamatrixof4batteriesinparallel. InstallationGuide Preparation Beforeinstallation,pleasereadallsafetyinformationprovidedinthis document.Ifyouhaveanyquestionsaboutoperationandsafeuseofthe batterysystem,pleasecontactthetechnicalsupportengineerimmediately forafreeconsultation. BeforeOperation:  Qualifiedelectricworkerqualificationismandatory.  Removeallmetalitems,suchasjewelry,watch,pen,etc.  Toensurethesafetyofconstructionpersonnelandequipment, disconnectthebatterypackfromtheoperatingequipmentduring wiring.  Payattentiontotheterminalvoltagepolarityofthebatterymodule.  Makesureinstallationtoolsareinsulatedandusetoolscorrectly.  Followtheconnectionportdescriptionandsystemconnection diagram.  Itisabsolutelyforbiddentoplugandunplugwhenthebatteryis working.Necessaryoperationshouldbedoneafterthepowersupply isdisconnected.  Beforetheformaloperation,ensurethatthepowerterminalsare properlyconnectedandtightentheterminals.Whenitisnecessaryto -7- measure,becarefultouseinstrumentsandtoolstoavoidshortcircuits andotheraccidents. Itisstrictlyprohibitedtodisassemblethebatterywithoutpermission fromtheprofessionaltechnicianfromthemanufacturer. InstallationTools BatteryConnection Tousebatteriesinparallel,thefollowingconditionsmustbemet: thesamebatterycapacity(Ah). fromsamebrand(aslithiumbatteryfromdifferentbrandshastheir specialBMS). purchasedinneartime(withinonemonth). TwoNecessaryStepsBeforeConnecting Thesetwostepsareindispensableforreducingthevoltagedifference betweenthebatteries.Throughthesesteps,thebatterysystemcan performatitsbestintheparallelmode. First,fullychargeeachofyour4batteriesseparately.Secondly,placethem togetherfor12to24hours,andthenconnectyour4batteriesinseriesone afteranother. -8- BatteryParallel： DubleEV12-30/60/105 DubleEV12-140 INSTRUCTIONS DubleEV12-30/60/105DubleEV12-140 -9- BUTTONFUNCTIONS ON/OFFButton:A.Batteryoutputon/offfunction;B.Strongstartfunction; OPERATION Deepcyclingmode: 1.Connectthepositiveandnegativeterminalsofthebatterycorrectlyto theloadorthedevice. 2.Pressthe"On/Off"buttontoactivatethebatterydischargeoutput. initiatingmode: Whenthebatteryisinastateoflowvoltageorotherdischarge-related protectionandnovoltageoutputisavailable,presstheON/OFFButtonto restartthebattery.Atthistime,theBMSwillforciblyactivatethedischarge MOStooutputvoltage,andafterapproximately60seconds,theoutput voltagewillbeturnedofftomeetthepowerrequirementsforvehicle startuporotherspecialsituations; Warning:Beforeconnectingtheloadandequipment,pleaseconfirm thatthepositiveandnegativeterminalsofthebatteryareconnected. Donotreversetheconnection. Attention Chargingcurrentshallbelessthanthemaximumchargingcurrent specifiedinthedatasheet.Chargingcurrentexceedingthe recommendedcurrentmaydamagethebattery. Thedischargecurrentshallbelessthanthemaximumdischarge currentspecifiedintheproductspecifications;Dischargecurrent biggerthantherecommendedcurrentmaydamagethebattery. Non-professio…

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Shenzhen HTT Technology Co., Ltd. Report No.: HTT202511684 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park,Hangcheng Road, Nanchang Community, Xixiang Street, Bao'an District, Guangdong Province, Shenzhen, China Page 1 of 4 Product Name: LiFePO4 Battery Model No.: Duble EV12-140 EUT Constructional Details External Photo Report No.: HTT202511684 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park,Hangcheng Road, Nanchang Community, Xixiang Street, Bao'an District, Guangdong Province, Shenzhen, China Page 2 of 4 Report No.: HTT202511684 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park,Hangcheng Road, Nanchang Community, Xixiang Street, Bao'an District, Guangdong Province, Shenzhen, China Page 3 of 4 Report No.: HTT202511684 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park,Hangcheng Road, Nanchang Community, Xixiang Street, Bao'an District, Guangdong Province, Shenzhen, China Page 4 of 4 ------End------

Label and Location Size: L: 4.0cm*W: 2.0cm Label and Location FCC ID : 2BS9K-EV12-140

Shenzhen HTT Technology Co., Ltd. Report No.: HTT202511684 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park,Hangcheng Road, Nanchang Community, Xixiang Street, Bao'an District, Guangdong Province, Shenzhen, China Page 1 of 3 Product Name: LiFePO4 Battery Model No.: Duble EV12-140 EUT Constructional Details Internal Photo Report No.: HTT202511684 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park,Hangcheng Road, Nanchang Community, Xixiang Street, Bao'an District, Guangdong Province, Shenzhen, China Page 2 of 3 Report No.: HTT202511684 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park,Hangcheng Road, Nanchang Community, Xixiang Street, Bao'an District, Guangdong Province, Shenzhen, China Page 3 of 3 ------End------ ANTENNA

Shenzhen HTT Technology Co., Ltd. Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park, Hangcheng Road,Nanchang Community, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China Page 1 of 8 RF Exposure MPE Report Reference No. ..................... : FCC ID............................................. : HTT202511684F02 2BS9K-EV12-140 Compiled by ( position+printed name+signature) . : File administrators Supervised by ( position+printed name+signature) . : Project Engineer Approved by ( position+printed name+signature) . : RF Manager Date of issue .................................... : Nov. 26, 2025 Testing Laboratory Name .............. : Shenzhen HTT Technology Co.,Ltd. Address............................................ : 1F, Building B, Huafeng International Robotics Industrial Park, Hangcheng Road,Nanchang Community, Xixiang Street, Bao’an District, Shenzhen, Guangdong, China Applicant’s name ............................ : Huizhou Tianchen Shangneng Technology Co.,Ltd Address............................................ : No3 Building, Wuyi village Road, Chenjiang Street, Zhongkai High- Tech Zone, Huizhou City, Guangdong, China Standard ........................................... : 47CFR §1.1310 47CFR §2.1091 KDB447498 D01 General RF Exposure Guidance v06 Shenzhen HTT Technology Co.,Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen HTT Technology Co.,Ltd. is acknowledged as copyright owner and source of the material. Shenzhen HTT Technology Co.,Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Test item description ..................... : LiFePO4 Battery Manufacturer .................................... : Huizhou Tianchen Shangneng Technology Co.,Ltd Trade Mark ........................................ N/A Model/Type reference ...................... : Duble EV12-140 Modulation Type ............................... : GFSK Operation Frequency ........................ : From 2402MHz to 2480MHz Rating ............................................... : DC 12.8V Result ............................................... : PASS Report No.: HTT202511684F02 Page 2 of 8 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park, Hangcheng Road,Nanchang Community, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China Page 2 of 8 T E S T R E P O R T Equipment under Test : LiFePO4 Battery Model /Type : Duble EV12-140 Listed Models : Duble EV12-30,Duble EV12-60,Duble EV12-105 Model difference : The PCB board, circuit, structure and internal of these models are the same, Only model number is different for these model. Applicant : Huizhou Tianchen Shangneng Technology Co.,Ltd Address : No3 Building, Wuyi village Road, Chenjiang Street, Zhongkai High-Tech Zone, Huizhou City, Guangdong, China Manufacturer : Huizhou Tianchen Shangneng Technology Co.,Ltd Address : No3 Building, Wuyi village Road, Chenjiang Street, Zhongkai High-Tech Zone, Huizhou City, Guangdong, China Test Result: PASS The test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. Report No.: HTT202511684F02 Page 3 of 8 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park, Hangcheng Road,Nanchang Community, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China Page 3 of 8 Contents 1 T E S T S T A N D A R D S ................................................... 4 2 S U M M A R Y .............................................................. 5 2.1 General Remarks 5 2.2 Product Description 5 2.3 Special Accessories 5 2.4 Modifications 5 3 T E S T E N V I R O N M E N T 6 3.1 Address of the test laboratory 6 3.2 Test Facility 6 3.3 Statement of the measurement uncertainty 6 4 T E S T L I M I T 7 4.1 Requirement 7 4.2 MPE Calculation Method 7 4.3 Conducted Power Results 8 4.4 Manufacturing tolerance 8 4.5 Standalone MPE Result 8 4.6 Simultaneous Transmission for MPE Result 8 5 C O N C L U S I O N .......................................................... 8 Report No.: HTT202511684F02 Page 4 of 8 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park, Hangcheng Road,Nanchang Community, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China Page 4 of 8 1 T E S T S T A N D A R D S The tests were performed according to following standards: ANSI C95.1–1999: IEEE Standard for Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3 kHz to 300 GHz. FCC KDB 447498 D01 General RF Exposure Guidance v06: Mobile and Portable Device, RF Exposure, Equipment Authorization Procedures. FCC CFR 47 part1 1.1310: Radiofrequency radiation exposure limits. FCC CFR 47 part2 2.1091: Radiofrequency radiation exposure evaluation: mobile devices Report No.: HTT202511684F02 Page 5 of 8 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park, Hangcheng Road,Nanchang Community, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China Page 5 of 8 2 S U M M A R Y 2.1 General Remarks Date of receipt of test sample : Nov. 14, 2025 Testing commenced on : Nov. 14, 2025 Testing concluded on : Nov. 26, 2025 2.2 Product Description Product Description: LiFePO4 Battery Model/Type reference: Duble EV12-140 Power supply: DC 12.8V Testing sample ID： HTT202511684-1# (Engineer sample) HTT202511684-2# (Normal sample) Hardware version: / Software version: / Bluetooth BLE Supported type: Bluetooth low Energy Modulation: GFSK Operation frequenc…

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1. Antenna Description: Antenna type PCB antenna Model EV12 Frequency range 2400-2500MHz Manufacturer DONGGUAN JIABAIDA ELECTRONICS TECHNOLOGY.CO.,LTD Address Building 3, No.10 Lianhu Weiye Road, Tangxia Town, Dongguan City, Guangdong Province,523710 ANT Peak Gain 1.50 dBi 2. Antenna Photo: 3. Test Equipment & Conditions 3.1 Test instrument VSWR is tested using Agilent E5071B connected to a hand mechanism, and the status is free space. 3.2 Test environment and methods 4．Antenna Radiation Pattern 2400MHz 2450MHz 2500MHz

1 Appendix RF Test Data for BLE Company: : Huizhou Tianchen Shangneng Technology Co.,Ltd EUT : LiFePO4 Battery FCC ID: : 2BS9K-EV12-140 Model Number : Duble EV12-140 Report No. : HTT202511684F01 Reviewed By : Heber He 2 1. Duty Cycle 1.1 Test Result 1.1.1 Ant1 Ant1 Mode TX Type Frequency (MHz) T_on (ms) Period (ms) Duty Cycle (%) Duty Cycle Correction Factor (dB) Max. DC Variation (%) 1M SISO 2402 100.000 100.000 100.00 0.00 0.00 2440 100.000 100.000 100.00 0.00 0.00 2480 100.000 100.000 100.00 0.00 0.00 2M SISO 2402 100.000 100.000 100.00 0.00 0.00 2440 100.000 100.000 100.00 0.00 0.00 2480 100.000 100.000 100.00 0.00 0.00 3 1.2 Test Graph 1.2.1 Ant1 1M_LCH_2402MHz_Ant1_NTNV 1M_MCH_2440MHz_Ant1_NTNV 4 1M_HCH_2480MHz_Ant1_NTNV 2M_LCH_2402MHz_Ant1_NTNV 5 2M_MCH_2440MHz_Ant1_NTNV 2M_HCH_2480MHz_Ant1_NTNV 6 2. Bandwidth 2.1 Test Result 2.1.1 OBW Mode TX Type Frequency (MHz) ANT 99% Occupied Bandwidth (MHz) Verdict Result Limit 1M SISO 2402 1 1.038 / Pass 2440 1 1.027 / Pass 2480 1 1.024 / Pass 2M SISO 2402 1 2.051 / Pass 2440 1 2.056 / Pass 2480 1 2.069 / Pass 2.1.2 6dB BW Mode TX Type Frequency (MHz) ANT 6dB Bandwidth (MHz) Verdict Result Limit 1M SISO 2402 1 0.697 >=0.5 Pass 2440 1 0.676 >=0.5 Pass 2480 1 0.681 >=0.5 Pass 2M SISO 2402 1 1.322 >=0.5 Pass 2440 1 1.410 >=0.5 Pass 2480 1 1.385 >=0.5 Pass 7 2.2 Test Graph 2.2.1 OBW 1M_LCH_2402MHz_Ant1_NTNV 1M_MCH_2440MHz_Ant1_NTNV 8 1M_HCH_2480MHz_Ant1_NTNV 2M_LCH_2402MHz_Ant1_NTNV 9 2M_MCH_2440MHz_Ant1_NTNV 2M_HCH_2480MHz_Ant1_NTNV 10 2.2.2 6dB BW 1M_LCH_2402MHz_Ant1_NTNV 1M_MCH_2440MHz_Ant1_NTNV 11 1M_HCH_2480MHz_Ant1_NTNV 2M_LCH_2402MHz_Ant1_NTNV 12 2M_MCH_2440MHz_Ant1_NTNV 2M_HCH_2480MHz_Ant1_NTNV 13 3. Maximum Conducted Output Power 3.1 Test Result 3.1.1 Power Mode TX Type Frequency (MHz) Maximum Peak Conducted Output Power (dBm) Verdict ANT1 Limit 1M SISO 2402 0.80 <=30 Pass 2440 0.85 <=30 Pass 2480 1.33 <=30 Pass 2M SISO 2402 0.83 <=30 Pass 2440 0.94 <=30 Pass 2480 1.34 <=30 Pass 14 4. Maximum Power Spectral Density 4.1 Test Result 4.1.1 PSD Mode TX Type Frequency (MHz) Maximum PSD (dBm) Verdict ANT1 Limit 1M SISO 2402 0.54 <=8 Pass 2440 0.53 <=8 Pass 2480 1.06 <=8 Pass 2M SISO 2402 -0.79 <=8 Pass 2440 -0.96 <=8 Pass 2480 -0.12 <=8 Pass 15 4.2 Test Graph 4.2.1 PSD 1M_LCH_2402MHz_Ant1_NTNV 1M_MCH_2440MHz_Ant1_NTNV 16 1M_HCH_2480MHz_Ant1_NTNV 2M_LCH_2402MHz_Ant1_NTNV 17 2M_MCH_2440MHz_Ant1_NTNV 2M_HCH_2480MHz_Ant1_NTNV 18 5. Unwanted Emissions In Non-restricted Frequency Bands 5.1 Test Result 5.1.1 Ref Mode TX Type Frequency (MHz) ANT Level of Reference (dBm) 1M SISO 2402 1 0.53 2440 1 0.40 2480 1 0.89 2M SISO 2402 1 -0.97 2440 1 -0.78 2480 1 -0.57 Note1: Refer to FCC Part 15.247 (d) and ANSI C63.10-2020, the channel contains the maximum PSD level was used to establish the reference level. 5.1.2 CSE Mode TX Type Frequency (MHz) ANT Level of Reference (dBm) Limit (dBm) Verdict 1M SISO 2402 1 0.53 -19.47 Pass 2440 1 0.40 -19.60 Pass 2480 1 0.89 -19.11 Pass 2M SISO 2402 1 -0.97 -20.97 Pass 2440 1 -0.78 -20.78 Pass 2480 1 -0.57 -20.57 Pass Note1: Refer to FCC Part 15.247 (d) and ANSI C63.10-2020, the channel contains the maximum PSD level was used to establish the reference level. 19 5.2 Test Graph 5.2.1 Ref 1M_LCH_2402MHz_Ant1_NTNV 1M_MCH_2440MHz_Ant1_NTNV 20 1M_HCH_2480MHz_Ant1_NTNV 2M_LCH_2402MHz_Ant1_NTNV 21 2M_MCH_2440MHz_Ant1_NTNV 2M_HCH_2480MHz_Ant1_NTNV 22 5.2.2 CSE 1M_LCH_2402MHz_Ant1_NTNV 1M_LCH_2402MHz_Ant1_NTNV 23 1M_MCH_2440MHz_Ant1_NTNV 1M_HCH_2480MHz_Ant1_NTNV 24 1M_HCH_2480MHz_Ant1_NTNV 2M_LCH_2402MHz_Ant1_NTNV 25 2M_LCH_2402MHz_Ant1_NTNV 2M_MCH_2440MHz_Ant1_NTNV 26 2M_HCH_2480MHz_Ant1_NTNV 2M_HCH_2480MHz_Ant1_NTNV

Shenzhen HTT Technology Co., Ltd. Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park, Hangcheng Road,Nanchang Community, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China FCC PART 15 SUBPART C TEST REPORT FCC PART 15.247 Report Reference No. ...................: FCC ID. ......................................... : HTT202511684F01 2BS9K-EV12-140 Compiled by ( position+printed name+signature) : File administrators Supervised by ( position+printed name+signature) : Project Engineer Approved by ( position+printed name+signature) : RF Manager Date of issue ...................................: Nov. 26, 2025 Testing Laboratory Name .............: Shenzhen HTT Technology Co.,Ltd. Address ...........................................: 1F, Building B, Huafeng International Robotics Industrial Park, Hangcheng Road,Nanchang Community, Xixiang Street, Bao’an District, Shenzhen, Guangdong, China Applicant’s name...........................: Huizhou Tianchen Shangneng Technology Co.,Ltd Address ...........................................: No3 Building, Wuyi village Road, Chenjiang Street, Zhongkai High-Tech Zone, Huizhou City, Guangdong, China Test specification ......................... : Standard ..........................................: FCC Part 15.247 Shenzhen HTT Technology Co.,Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen HTT Technology Co.,Ltd. is acknowledged as copyright owner and source of the material. Shenzhen HTT Technology Co.,Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Equipment description ................ : LiFePO4 Battery Trade Mark ......................................: N/A Manufacturer ...................................: Huizhou Tianchen Shangneng Technology Co.,Ltd Model/Type reference .....................: Duble EV12-140 Listed Models ..................................: Duble EV12-30,Duble EV12-60,Duble EV12-105 Modulation ......................................: GFSK Frequency ........................................ From 2402MHz to 2480MHz Ratings ............................................: DC 12.8V Result ..............................................: PASS Report No.: HTT202511684F01 Page 2 of 25 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park, Hangcheng Road,Nanchang Community, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China T E S T R E P O R T Equipment under Test : LiFePO4 Battery Model /Type : Duble EV12-140 Listed Models : Duble EV12-30,Duble EV12-60,Duble EV12-105 Applicant : Huizhou Tianchen Shangneng Technology Co.,Ltd Address : No3 Building, Wuyi village Road, Chenjiang Street, Zhongkai High-Tech Zone, Huizhou City, Guangdong, China Manufacturer : Huizhou Tianchen Shangneng Technology Co.,Ltd Address : No3 Building, Wuyi village Road, Chenjiang Street, Zhongkai High-Tech Zone, Huizhou City, Guangdong, China Test Result: PASS The test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. Report No.: HTT202511684F01 Page 3 of 25 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park, Hangcheng Road,Nanchang Community, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China Contents 1 TEST STANDARDS .......................................................................................................................................... 4 2 SUMMARY ........................................................................................................................................................ 5 2.1 General Remarks .................................................................................................................................... 5 2.2 Product Description* ................................................................................................................................ 5 2.3 Equipment Under Test ............................................................................................................................ 5 2.4 Short description of the Equipment under Test (EUT) ............................................................................ 5 2.5 EUT configuration .................................................................................................................................... 5 2.6 EUT operation mode ............................................................................................................................... 5 2.7 Block Diagram of Test Setup .................................................................................................................. 6 2.8 Related Submittal(s) / Grant (s) .............................................................................................................. 6 2.9 Modifications ........................................................................................................................................... 6 3 TEST ENVIRONMENT ...................................................................................................................................... 7 3.1 Address of the test laboratory ................................................................................................................. 7 3.2 Test Facility ............................................................................................................................................. 7 3.3 Environmental conditions ........................................................................................................................ 7 3.4 Summary of measurement resu…

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Shenzhen HTT Technology Co., Ltd. Report No.: HTT202511684 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park,Hangcheng Road, Nanchang Community, Xixiang Street, Bao'an District, Guangdong Province, Shenzhen, China Page 1 of 2 Product Name: LiFePO4 Battery Model No.: Duble EV12-140 Test Setup Photo Radiated Emission Report No.: HTT202511684 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park,Hangcheng Road, Nanchang Community, Xixiang Street, Bao'an District, Guangdong Province, Shenzhen, China Page 2 of 2 RF Test ------End------