2BF9G-BMS04Battery Monitor System

Device Power Up BMS04 will power up by applying voltage between 8V ~ 72 V, because device has rectifier inside to allow no polarity issue of input voltage, therefore user can connect power to device in ease. After power up, BMS04 show logo and then display the first information on LCD ( figure 1 ), device will store the date and time before no power into the non volatile memory Figure 1 Device then checking some hardware resource like the flash memory and SIM card installation ( figure 2 ) Figure 2 If both checking pass then device will start running, first show the current firmware version ( as figure 3 ) then start collect data and display ( as figure 4 ) Figure 3 Figure 4 SIM – X -> Sim installation fail SIM – OK -> Sim installation OK GPS – X -> Not yet locking GPS GPS – OK -> Found GPS RSSI – X -> Not yet connect to APN RSSI + Level -> how Signal Strength No WiFi Mark -> Not connect to WiFi hotspot WiFi Mark On -> Connect to WiFi hotspot Web Server 1. Finding device in mobile WiFi list 2. Select device to connect, ( maybe need enter password according to mobile, default is 12345678 ) 3. Use any brower, type in “setup.local” and then click, mobile will enter BMS04 web server page 4. User can setup device information by clicking “Setup”, inside “Setup” page can enter the WiFi hotspot SSID and password, rename device ID Prefix and number, adjust sending interval and Web Server password etc, in this example, device ID will change to BMS-05, and device will connect to APN ( need turn WiFi to On on front page ) with SSID Macdonald and password is abc123456. 5. Press “Update” button to confirm data, device restart to use the new setting to run 6. User can calibrate device by clicking “Calibration”, inside “Calibration” page can calibrate current sensor offset, voltage offset and temperature offset, please unload any current loading on current sensor and device will get the zero offset, in this example, 1786 is the offset data, then enter the battery voltage measure by multimeter, in this example is 13.2V, and use thermometer of the surrounding temperature, in this example is 28 degree Celsius, then press “Set” button to confirm entry, on next page, “Set” button will disappear and press “Next” button, entry data will show on page 2 7. User can read device data by clicking “Reading”, inside “Reading” page can view most of the device data as shown FCC Warning This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: —Reorient or relocate the receiving antenna. —Increase the separation between the equipment and receiver. —Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. —Consult the dealer or an experienced radio/TV technician for help. Note: The Grantee is not responsible for any changes or modifications not expressly approved by the party responsible for compliance. such modifications could void the user's authority to operate the equipment. The device has been evaluated to meet general RF exposure requirement. To maintain compliance with FCC's RF exposure guidelines, the distance must be at least 20 cm between the radiator and your body, and fully supported by the operating and installation

Rev 1/26/2023 Energy Battery Asia Company Limited Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 05‐07‐2024 Ref: Attestation Statements Part 2.911(d)(5)(ii) Filing FCC ID: 2BF9G‐BMS04 Energy Battery Asia Company Limited (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing “covered” equipment. The applicant is not a named entity or any of its subsidiaries or affiliates. Sincerely, (Applicant signature) Chun Ming Gary Wong

Energy Battery Asia Company Limited Dat e: May 07, 2024 Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID: 2BF9G-BMS04 Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request confidential treatment of information accompanying this application as outlined below: Exhibit Type File Name Schematics Block Diagram Operational Description Part List Part Placement Schematics PCB Layout Schematics Tune-up Procedure Schematics.pdf Block Diagram.pdf Operational Description.pdf Part List.pdf Part Placement Schematics.pdf PCB Layout Schematics.pdf Tune-up Procedure.pdf The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Section 0.457 of the Rules, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Sincerely, Energy Battery Asia Company Limited Signature Chun Ming Gary Wong / Sales Manager Typed name and Title

Energy Battery Asia Company Limited FCC ID: 2BF9G-BMS04 POWER OF ATTORNEY Date: May 07, 2024 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 To Whom It May Concern: We, the undersigned, hereby authorize Waltek Testing Group Co., Ltd. (Deval Qin) on our behalf, to apply to the Federal Communications Commission on our equipment. Any and all acts carried out by Waltek Testing Group Co., Ltd. (Deval Qin) on our behalf shall have the same effect as acts of our own. This authorization expires on May 06, 2024. Sincerely, Energy Battery Asia Company Limited Signature Chun Ming Gary Wong / Sales Manager Typed name and Title

Appendix-BMS04-Photos Page 3 of 10 2. Photographs –Constructional Details 2.1. EUT – External View Model BMS04 FCC ID: 2BF9G-BMS04 Appendix-BMS04-Photos Page 4 of 10 Appendix-BMS04-Photos Page 5 of 10 Appendix-BMS04-Photos Page 6 of 10 Appendix-BMS04-Photos Page 7 of 10

Appendix-BMS04-Photos Page 8 of 10 2.2. EUT – Internal View Model BMS04 FCC ID: 2BF9G-BMS04 Appendix-BMS04-Photos Page 9 of 10 Appendix-BMS04-Photos Page 10 of 10

Waltek Testing Group Co., Ltd. http://www.waltek.com.cn Page 1 of 8 TEST REPORT Referen ce No. .................... : WTF24D04087570W003 FCC ID ................................ : 2BF9G-BMS04 Applicant ............................ : Energy Battery Asia Company Limited Address .............................. : Suite E,22/F, Ford Glory Plaza, 37 Wing Hong Street Lai Chi Kok, Kowloon, Hong Kong Manufacturer .................... : JIAHUA DIAN ZHI YOU XIAN GONG SHI Address .............................. : Chang Pu Industrial Zone, Jiesheng Town, Shanwei, China Product ............................... : Battery Monitor System Model(s). ............................ : BMS04 Standards........................... : FCC 47CFR Part 2 Subpart J Section 2.1091 Date of Receipt sample .... : 2024-04-23 Date of Test ....................... : 2024-07-10 to 2024-07-25 Date of Issue ...................... : 2024-08-23 Test Result ......................... : Pass Remarks: The re sults shown in this test report refer only to the sample(s) tested, this test report cannot be reproduced, except in full, without prior written permission of the company. The report would be invalid without specific stamp of test institute and the signatures of compiler and approver. Prepared By: Waltek Testing Group Co., Ltd. Address: No. 77, Houjie Section, Guantai Road, Houjie Town, Dongguan City, Guangdong, China Tel: +86-769-2267 6998 Fax: +86-769-2267 6828 Compiled by: Approved by: James Cheng / Project Engineer Deval Qin / Designated Reviewer Reference No.: WTF24D04087570W003 Page 2 of 8 Waltek Testing Group Co., Ltd. http://www.waltek.com.cn 2. Contents Page 1 COVER PAGE ........................................................................................................................................... 1 2. CONTENTS ............................................................................................................................................... 2 3. REVISION HISTORY ................................................................................................................................. 3 4. GENERAL INFORMATION ....................................................................................................................... 4 4.1. GENERAL DESCRIPTION OF E.U.T.................................................................................................... 4 4.2. DETAILS OF E.U.T. ......................................................................................................................... 4 4.3. TEST FACILITY ................................................................................................................................ 5 4.4. SUBCONTRACTED ........................................................................................................................... 5 4.5. ABNORMALITIES FROM STANDARD CONDITIONS ................................................................................ 5 5. TEST SUMMARY ...................................................................................................................................... 6 6. RF EXPOSURE ......................................................................................................................................... 7 6.1. REQUIREMENTS .............................................................................................................................. 7 6.2. THE PROCEDURES / LIMIT ................................................................................................................ 7 6.3. MPE CALCULATION METHOD........................................................................................................... 8 6.4. RADIO FREQUENCY RADIATION EXPOSURE EVALUATION ................................................................... 8 Reference No.: WTF24D04087570W003 Page 3 of 8 Waltek Testing Group Co., Ltd. http://www.waltek.com.cn 3. Revision History Test Report No. Date of Receipt Sample Date of Test Date of Issue Purpose Comment Approved WTF24D04087570W003 2024-04-23 2024-07-10 to 2024-07-25 2024-08-23Original - Valid Reference No.: WTF24D04087570W003 Page 4 of 8 Waltek Testing Group Co., Ltd. http://www.waltek.com.cn 4. General Information 4.1. General Description of E.U.T. Product: Battery Monitor System Model(s): BMS04 Model Description: N/A Test Sample No.: 1-1/1 Wi-Fi Specification: 2.4G-802.11b/g/n HT20 LTE Band(s): FDD Band 2/4/5/12/13 Hardware Version: BMS04-MP Software Version: Ver16.0 4.2. Details of E.U.T. Operation Frequency: 2.4G Wi-Fi: 802.11b/g/n HT20: 2412~2462MHz FDD-LTE Band 2: Tx: 1850-1910MHz, FDD-LTE Band 4: Tx: 1710-1755MHz, FDD-LTE Band 5: Tx: 824-849MHz, FDD-LTE Band 12: Tx: 699-716MHz, FDD-LTE Band 13: Tx: 777-787MHz Max. RF output power: 2.4G Wi-Fi: 17.59dBm FDD-LTE Band 2: 18.83dBm, FDD-LTE Band 4: 18.75dBm, FDD-LTE Band 5: 17.76dBm, FDD-LTE Band 12: 18.90dBm, FDD-LTE Band 13: 18.29dBm Modulation Technology: 2.4G Wi-Fi: DSSS, CCK, OFDM LTE:QPSK,16QAM Antenna installation: 2.4G Wi-Fi: PCB Antenna LTE: External Antenna Antenna Gain: 2.4G Wi-Fi: 2dBi LTE Band 2: 1.79dBi LTE Band 4: -0.12dBi LTE Band 5: -1.56dBi LTE Band 12: -2.76dBi LTE Band 13: -1.28dBi Note: #: The antenna gain is provided by the applicant, and the applicant should be responsible for its authenticity, WALTEK lab has not verified the authenticity of its information. Ratings: Input: DC 8-72V Reference No.: WTF24D04087570W003 Page 5 of 8 Waltek Testing Group Co., Ltd. http://www.waltek.com.cn 4.3. Test Facility The test facility has a test site registered with the following organizations: ISED CAB identifier: CN0013. Test Firm Registration No.: 7760A. Waltek Testing Group Co., Ltd. Has been registered and fully described in a report filed with the Industry Canada. The acceptance letter from the Industry Canada is maintained in our files. Registration number 7760A, October 15, 2016. FCC Designation No.: CN1201. Test Firm Registration No.: 523476. Waltek Testing Group Co., Ltd. EMC L…

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FS102 Antenna model 天线规格书 Antenna specification SHENZHEN FEIMIN TECHNOLOGY CO.,LTD. TEL:0755-23035723 Mail:[email protected] URL:www.fmant.cn Antenna Type PCB Printed Antenna 测试设备和测试环境 Test equipment and test environment SHENZHEN FEIMIN TECHNOLOGY CO.,LTD. TEL:0755-23035723 Mail:[email protected] URL:www.fmant.cn Data collection and computer processing Vector network analyzer Active switching device Wireless Communication Protocol Probe selection unit Transmission switching device Transmitting amplifier Receiving amplifier Power supply and control devices control devices 测试设备 Test equipment Passive indicators Gain Efficiency 3D directional map Active indicators TRP total radiation power TIS total reception sensitivity 探头微波暗室 Probe microwave darkroom  频率：0.4GHz至6GHz Frequency: 0.4GHz-6GHz Main test indicators SHENZHEN FEIMIN TECHNOLOGY CO.,LTD. TEL:0755-23035723 Mail:[email protected] URL:www.fmant.cn 测试设备 Test equipment Agilent E5071C Vector network analyzer frequency： 300 kHz-8.5GHz R&S CMW500 Broadband wireless communication tester GSM/3G/4G WIFI/ Bluetooth NB-IoT SHENZHEN FEIMIN TECHNOLOGY CO.,LTD. TEL:0755-23035723 Mail:[email protected] URL:www.fmant.cn 天线安装位置 Passive antenna data SHENZHEN FEIMIN TECHNOLOGY CO.,LTD. TEL:0755-23035723 Mail:[email protected] URL:www.fmant.cn Antenna installation and location 天线增益与效率 Antenna gain and efficiency SHENZHEN FEIMIN TECHNOLOGY CO.,LTD. TEL:0755-23035723 Mail:[email protected] URL:www.fmant.cn 天线 Freq(MHz) Efficiency (％) Gain(dBi) 2400 46.32 1.91 2410 48.68 1.27 2420 49.42 1.88 2430 49.01 1.84 2440 47.17 2.00 2450 46.39 1.48 2460 45.53 1.35 2470 44.87 1.32 2480 44.24 1.39 2490 44.16 1.68 2500 43.13 1.93 天线辐射方向图 Antenna Radiation Pattern SHENZHEN FEIMIN TECHNOLOGY CO.,LTD. TEL:0755-23035723 Mail:[email protected] URL:www.fmant.cn

Waltek Testing Group Co., Ltd. http://www.waltek.com.cn Page 1 of 46 TEST REPORT Referen ce No. .................... : WTF24D04087570W002 FCC ID ................................ : 2BF9G-BMS04 Applicant ............................ : Energy Battery Asia Company Limited Address .............................. : Suite E,22/F, Ford Glory Plaza, 37 Wing Hong Street Lai Chi Kok, Kowloon, Hong Kong Manufacturer .................... : JIAHUA DIAN ZHI YOU XIAN GONG SHI Address .............................. : Chang Pu Industrial Zone, Jiesheng Town, Shanwei, China Product ............................... : Battery Monitor System Model(s). ............................ : BMS04 Standards........................... : FCC 47CFR Part 15.247 Date of Receipt sample .... : 2024-04-23 Date of Test ....................... : 2024-07-10 to 2024-07-25 Date of Issue ...................... : 2024-08-23 Test Result ......................... : Pass Remarks: The re sults shown in this test report refer only to the sample(s) tested, this test report cannot be reproduced, except in full, without prior written permission of the company. The report would be invalid without specific stamp of test institute and the signatures of compiler and approver. Prepared By: Waltek Testing Group Co., Ltd. Address: No. 77, Houjie Section, Guantai Road, Houjie Town, Dongguan City, Guangdong, China Tel: +86-769-2267 6998 Fax: +86-769-2267 6828 Compiled by: Approved by: James Cheng / Project Engineer Deval Qin / Designated Reviewer Reference No.: WTF24D04087570W002 Page 2 of 46 Waltek Testing Group Co., Ltd. http://www.waltek.com.cn 2 Contents Page 1 COVER PAGE ........................................................................................................................................... 1 2 CONTENTS ............................................................................................................................................... 2 3 REVISION HISTORY ................................................................................................................................. 3 4 GENERAL INFORMATION ....................................................................................................................... 4 4.1 GENERAL DESCRIPTION OF E.U.T. ....................................................................................................... 4 4.2 DETAILS OF E.U.T. .............................................................................................................................. 4 4.3 CHANNEL LIST ..................................................................................................................................... 4 4.4 TEST FACILITY .................................................................................................................................... 5 4.5 SUBCONTRACTED ................................................................................................................................ 5 4.6 ABNORMALITIES FROM STANDARD CONDITIONS .................................................................................... 5 4.7 TEST MODE ........................................................................................................................................ 6 5 TEST SUMMARY ...................................................................................................................................... 7 6 EQUIPMENT USED DURING TEST ......................................................................................................... 8 6.1 EQUIPMENTS LIST ............................................................................................................................... 8 6.2 DESCRIPTION OF SUPPORT UNITS ........................................................................................................ 9 6.3 MEASUREMENT UNCERTAINTY ............................................................................................................. 9 6.4 TEST EQUIPMENT CALIBRATION ........................................................................................................... 9 7 DUTY CYCLE .......................................................................................................................................... 10 8 RADIATED EMISSIONS ......................................................................................................................... 12 8.1 EUT OPERATION ............................................................................................................................... 12 8.2 TEST SETUP ..................................................................................................................................... 13 8.3 SPECTRUM ANALYZER SETUP ............................................................................................................ 14 8.4 TEST PROCEDURE ............................................................................................................................. 15 8.5 CORRECTED AMPLITUDE & MARGIN CALCULATION .............................................................................. 15 8.6 SUMMARY OF TEST RESULTS ............................................................................................................. 16 9 CONDUCTED SPURIOUS EMISSIONS ................................................................................................. 19 9.1 TEST PROCEDURE ............................................................................................................................. 19 9.2 TEST RESULT .................................................................................................................................... 20 10 BAND EDGE MEASUREMENT .............................................................................................................. 29 10.1 TEST PRODUCE ............................................................................................................................ 29 10.…

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Appendix-BMS04-Photos Page 1 of 10 1. Test Setup photos Model BMS04 FCC ID: 2BF9G-BMS04 1.1 Photograph – Radiated Emissions For 9kHz-30MHz Test Site 2# For 30MHz-1000MHz Test Site 2# Appendix-BMS04-Photos Page 2 of 10 For Above 1GHz Test Site 1#