2BUJL-LM24300Lithium iron phosphate battery pack

Guangdong Zhongju Power Technology Co., Ltd Address: No.12 fuxing Avenue, Fuxing Industrial Zone, Futian Town, Boluo County, Huizhou city, Guangdong Province, China Attestation Statements Not Covered Entity Applicant & Not Covered Equipment To: Federal Communications Commission Date: Feb. 5, 26 7435 Oakland Mills Road, Columbia, MD 21046, USA Ref: Information Required by Section 2.911(d)(5)(i) & (ii) FCC ID: 2BUJL-LM24300 Guangdong Zhongju Power Technology Co., Ltd (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List, established pursuant to § 1.50002 of reference chapter, as an entity producing “covered” communication equipment. The equipment for which authorization is sought is not “covered” telecommunications equipment and video surveillance equipment produced by entities identified on the Commission’s Covered List that prohibited from receiving an equipment authorization pursuant to section § 2.903 of the FCC rules. Sincerely yours, Applicant Signature Printed Name: Hailong Chu Title: Manager Address: No.12 fuxing Avenue, Fuxing Industrial Zone, Futian Town, Boluo County, Huizhou city, Guangdong Province, China Tel.: 13421833116 Email: [email protected]

Guangdong Zhongju Power Technology Co., Ltd Address: No.12 fuxing Avenue, Fuxing Industrial Zone, Futian Town, Boluo County, Huizhou city, Guangdong Province, China 1 | P a g e Attestation Statements To: Federal Communications Commission Date: Feb. 5, 26 7435 Oakland Mills Road, Columbia, MD 21046, USA Subject: Attestation of Compliance with FCC Covered List Software Requirements FCC ID: [2BUJL-LM24300] Product Name: [Lithium iron phosphate battery pack] This letter serves as an attestation that the equipment identified above ☐ is / ☒ is not (select one) "covered" software as defined under the Federal Communications Commission (FCC) Covered List requirements, as outlined in FCC 22-84 and KDB 986446. Specifically, the undersigned certifies that the equipment for which authorization is sought: 1. Does not contain cybersecurity or anti-virus software produced or provided by Kaspersky Lab, Inc. or any of its successors, assignees, parents, subsidiaries, affiliates, or any entity that has rebranded or relabeled software produced by the aforementioned entities. 2. Does not have the capability to store, run, or deliver any software identified on the FCC Covered List, including but not limited to cybersecurity and anti-virus software. To support this attestation, the appendix evaluation documentation has been prepared and is included in the certification filing. This attestation is based on a thorough evaluation of the device's design, functionality, and software environment. The undersigned affirms that the information provided is accurate and complete to the best of their knowledge. Sincerely yours, Applicant Signature Printed Name: Hailong Chu Title: Manager Address: No.12 fuxing Avenue, Fuxing Industrial Zone, Futian Town, Boluo County, Huizhou city, Guangdong Province, China Tel.: 13421833116 Email: [email protected] Guangdong Zhongju Power Technology Co., Ltd Address: No.12 fuxing Avenue, Fuxing Industrial Zone, Futian Town, Boluo County, Huizhou city, Guangdong Province, China 2 | P a g e Evaluation regarding to the Covered List Software: Compliance Methodology Evaluation Process Results Device is Inherent compliance ☒ The Chipset(s) used is limited to run the Cybersecurity or anti-virus software. Compliance ☒ The Memory used is limited to run the Cybersecurity or anti-virus software. Compliance ☒ There is storage capacity limitation for store or install the Cybersecurity or anti-virus software. Compliance ☒ Operating system used is limited to run, install or deliver the Cybersecurity or anti-virus software. Compliance Device is not Inherent compliance ☐ Evaluation Based on Software Bill of Materials (SBoM) See attached “SBoM“ Note:The SBoM content is limited to the scope of covered list software (e.g. antivirus and cybersecurity software). ☐ Evaluation Based on Scan for Software on the device ☐ Evaluation Based on Filesystem scan ☐ Evaluation Based on Running software check

Guangdong Zhongju Power Technology Co., Ltd Address: No.12 fuxing Avenue, Fuxing Industrial Zone, Futian Town, Boluo County, Huizhou city, Guangdong Province, China U.S. Agent Letter of Attestation To: Federal Communications Commission 7435 Oakland Mills Road, Columbia, MD 21046, USA Date: Feb. 5, 26 Ref: Attestation Statement – Part 2.911(d)(7) filing FCC ID: 2BUJL-LM24300 [Guangdong Zhongju Power Technology Co., Ltd] (“the applicant”) certifies that, as of the date of the filing of the application, [TTS MARKET INC.] (“the agent”) is our designated U.S. agent for service of process for the above reference FCC ID. The applicant accepts to maintain an agent for service of process in the United States for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. The applicant further acknowledges it is our responsibility to inform the FCC whenever the agent information changes. [TTS MARKET INC.] ("the agent”) understand it is the agent's obligation to accept service of process in the United States for matters related to the applicable equipment, and at the physical U.S. address and email address. Designated U.S. Agent Company Name:TTS MARKET INC. FRN: 0036806057 GC: N/A Address: 1178 Broadway Ste 324, New York,NY 10001. USA Signature: Contact Person: Maverick Lim Tel:001-(646) 305-2908 Email: [email protected] Applicant Company Name: Guangdong Zhongju Power Technology Co., Ltd FRN: 0037905726 Address: No.12 fuxing Avenue, Fuxing Industrial Zone, Futian Town, Boluo County, Huizhou city, Guangdong Province, China Signature: Contact Person: Hailong Chu Tel: 13421833116 Email: [email protected]

Guangdong Zhongju Power Technology Co., Ltd Address: No.12 fuxing Avenue, Fuxing Industrial Zone, Futian Town, Boluo County, Huizhou city, Guangdong Province, China (Feb. 04, 2026) Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request for: FCC ID: 2BUJL-LM24300 Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request permanent confidential treatment of the exhibits accompanying this certification application as outlined below : ⎯ Block Diagram ⎯ Schematics ⎯ Operational Description The above exhibits contain trade secrets and/or proprietary information that are not publicly available and materials that the Applicant has spent considerable efforts in developing. Public disclosure of these may be harmful to the Applicant and give an unfair advantage to competitors on the market. Pursuant to DA 04-1705, the applicant also requests temporary confidential treatment of the exhibits outlined below for a period of (up to 180) days from the date of equipment authorization and prior to marketing in the United States to prevent the premature release of any sensitive information. Applicant is aware of their responsibility to notify DERYCOM in the event information regarding the product or the product is made available to the public before the requested period has expired. ⎯ User Manual Sincerely, (Signature) Title: Manager Address: No.12 fuxing Avenue, Fuxing Industrial Zone, Futian Town, Boluo County, Huizhou city, Guangdong Province, China Tel.: 13421833116 Email: [email protected]

Guangdong Zhongju Power Technology Co., Ltd Address: No.12 fuxing Avenue, Fuxing Industrial Zone, Futian Town, Boluo County, Huizhou city, Guangdong Province, China (feb. 04, 2026) Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization for FCC ID: 2BUJL-LM24300 I, the undersigned, hereby authorize (Shenzhen NCT Testing Technology Co., Ltd.) to act on our behalf in all matters relating to this application for equipment certification. Any act carried out by (Shenzhen NCT Testing Technology Co., Ltd.) shall have the same effect as our own and I acknowledge that all responsibility for complying with the terms and conditions of certification, as specified by DERYCOM CERTIFICATION SERVICES, INC., still resides with (Guangdong Zhongju Power Technology Co., Ltd). We certify that we are not subject to a denial of federal benefits that includes FCC benefits pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. §862, and that no party to the application, as defined in 47 CFR §1.2002(b), is subject to a denial of federal benefits that includes FCC benefits pursuant to that section. Sincerely, (Signature) (Full name of contact person listed on FCC’s website) Hailong Chu (Title): Manager Tel: 13421833116 Fax: Email: [email protected]

Guangdong Zhongju Power Technology Co., Ltd Product Similarity Declaration Product name: Lithium iron phosphate battery pack Model name: LM24300, LM24100, LM24200, LM256200 FCC ID: 2BUJL-LM24300 We (Guangdong Zhongju Power Technology Co., Ltd) hereby state that all the models are electrical identical including the same software parameter and hardware design (i.e., circuit design, PCB Layout, RF module/circuit, antenna type(s) and antenna location, components on PCB, etc.,), same mechanical structure and design (including product enclosure, materials, etc.,), the only difference is the model name and outlook(Stickers vary by model). Signature: Name: Hailong Chu Title: Manager Place, date: Huizhou, 2026.2.02

FCC ID: 2BUJL-LM24300 External Photos

FCC ID ：2BUJL-LM24300

FCC ID: 2BUJL-LM24300 Internal Photos Antenna

FCC ID: 2BUJL-LM24300 RF Exposure Evaluation Limits The criteria listed in the following table shall be used to evaluate the environment impact of human exposure to radio frequency (RF) radiation as specified in 1.1307(b) Limits for Maximum Permissible Exposure (MPE) Frequency range (MHz) Electric field strength (V/m) Magnetic field strength (A/m) Power density (mW/cm 2 ) Averaging time (minutes) (A) Limits for Occupational/Controlled Exposures 0.3–3.0 614 1.63 *(100) 6 3.0–30 1842/f 4.89/f *(900/f 2 ) 6 30–300 61.4 0.163 1.0 6 300–1500 f/300 6 1500–100,000 5 6 (B) Limits for General Population/Uncontrolled Exposure 0.3–1.34 614 1.63 *(100) 30 1.34–30 824/f 2.19/f *(180/f 2 ) 30 30–300 27.5 0.073 0.2 30 300–1500 f/1500 30 1500–100,000 1.0 30 f = frequency in MHz Friis transmission formula: Pd = (Pout*G)/(4*pi*r 2 ) Where Pd = power density in mW/cm 2 , Pout = output power to antenna in mW; G = gain of antenna in linear scale, Pi = 3.1416; R = distance between observation point and center of the radiator in cm Pd id the limit of MPE, 1 mW/cm 2 . If we know the maximum gain of the antenna and the total power input to the antenna, through the calculation, we will know the distance r where the MPE limit is reached. Test Procedure Software provided by client enabled the EUT to transmit and receive data at lowest, middle and highest channel individually. Test Result of RF Exposure Evaluation Modulation Frequency (MHz) Output power to antenna (dBm) Output power to antenna (mW) Power Density at R=20cm (mW/cm 2 ) Limit (mW/cm 2 ) Result GFSK 1M 2402 -0.17 0.961612 0.000191 1.0 PASS 2440 -0.36 0.920450 0.000183 1.0 PASS 2480 -0.36 0.920450 0.000183 1.0 PASS Remark：Antenna gain is 0 dBi, So a SAR test is not required

Antenna describe 1. Antenna describe: Antenna plate PCB antenna Make name/model name F-6688 Antenna gain 0dBi Frequency range 2.4GHZ-2.483GHZ Connector type direct 2.External view drawing: Picture of antenna Huizhou langze Intellingent Control Technology co.,Ltd Loc ation of mearement (company name) 3rd Floor, Building B2, Xinghe IMC, No. 333 Zhongkai 6th Road, Chenjiang Street, Zhongkai High-tech District, Huizhou City, Guangdong Province, China Company Address 3.Antenna Radiation Pattern Radiation [email protected] Total Average Gain:-0.475dbi Phi Gain 0 45 90 135 180 235 270 315 -0.1 -0.3 -0.8 -0.5 -0.2 -0.6 -0.8 -0.5 Radiation [email protected] Total Average Gain:-0.275dbi Phi Gain 0 45 90 135 180 235 270 315 0 -0.1 -0.3 -0.6 -0.1 -0.2 -0.6 -0.4 Radiation [email protected] Total Average Gain:-0.237dbi Phi Gain 0 45 90 135 180 235 270 315 0 -0.1 -0.2 -0.5 0 -0.3 -0.6 -0.2

FCC ID_BLE (Part15.247) Test Data Report No.: NCT26003739E1-1 FCC ID: 2BUJL-LM24300 Table of Contents 1. -6dB Bandwidth .......................................................................................................................................................... 2 2. 99% Occupied Bandwidth .......................................................................................................................................... 4 3. Duty Cycle ................................................................................................................................................................... 6 4. Peak Output Power..................................................................................................................................................... 8 5. Power Spectral Density ............................................................................................................................................... 9 6. Bandedge .................................................................................................................................................................. 11 7. Spurious Emission ..................................................................................................................................................... 13 Page 2 of 15 1. -6dB Bandwidth Condition Antenna Rate Frequency (MHz) -6dB BW(kHz) limit(kHz) Result NVNT ANT1 1Mbps 2402.00 524.26 500 Pass NVNT ANT1 1Mbps 2440.00 535.67 500 Pass NVNT ANT1 1Mbps 2480.00 539.45 500 Pass -6dB_Bandwidth_NVNT_ANT1_1Mbps_2402 -6dB_Bandwidth_NVNT_ANT1_1Mbps_2440 -6dB_Bandwidth_NVNT_ANT1_1Mbps_2480 Page 3 of 15 Page 4 of 15 2. 99% Occupied Bandwidth Condition Antenna Rate Frequency (MHz) 99%%BW(MHz) NVNT ANT1 1Mbps 2402.00 1.153 NVNT ANT1 1Mbps 2440.00 1.191 NVNT ANT1 1Mbps 2480.00 1.193 99%_Occupied_Bandwidth_NVNT_ANT1_1Mbps_2402 99%_Occupied_Bandwidth_NVNT_ANT1_1Mbps_2440 99%_Occupied_Bandwidth_NVNT_ANT1_1Mbps_2480 Page 5 of 15 Page 6 of 15 3. Duty Cycle Condition Antenna Rate Frequency (MHz) Dutycycle(%) Duty_factor NVNT ANT1 1Mbps 2402.00 16.13 7.92 NVNT ANT1 1Mbps 2440.00 12.90 8.89 NVNT ANT1 1Mbps 2480.00 12.90 8.89 Duty_Cycle_NVNT_ANT1_1Mbps_2402 Duty_Cycle_NVNT_ANT1_1Mbps_2440 Duty_Cycle_NVNT_ANT1_1Mbps_2480 Page 7 of 15 Page 8 of 15 4. Peak Output Power Condition Antenna Rate Frequency (MHz) Max. Conducted Power(dBm) Max. Conducted Power(mW) Limit(mW) Result NVNT ANT1 1Mbps 2402.00 -0.17 0.96 1000 Pass NVNT ANT1 1Mbps 2440.00 -0.36 0.92 1000 Pass NVNT ANT1 1Mbps 2480.00 -0.36 0.92 1000 Pass Page 9 of 15 5. Power Spectral Density Condition Antenna Rate Frequency (MHz) Power Spectral Density(dBm/3kHz) Limit(dBm/3kHz) Result NVNT ANT1 1Mbps 2402.00 -20.64 8 Pass NVNT ANT1 1Mbps 2440.00 -20.76 8 Pass NVNT ANT1 1Mbps 2480.00 -21.16 8 Pass Power_Spectral_Density_NVNT_ANT1_1Mbps_2402 Power_Spectral_Density_NVNT_ANT1_1Mbps_2440 Power_Spectral_Density_NVNT_ANT1_1Mbps_2480 Page 10 of 15 Page 11 of 15 6. Bandedge Condition Antenna Modulation TX_Frequency (MHz) Max. Mark_freq(MHz) Ref_level(dBm) Spurious level(dBm) limit(dBm) Result NVNT ANT1 1Mbps 2402.00 2377.830 -0.341 -48.133 -20.341 Pass NVNT ANT1 1Mbps 2480.00 2498.625 -0.535 -57.969 -20.535 Pass 1_Reference_Level_NVNT_ANT1_1Mbps_2402 2_Bandedge_NVNT_ANT1_1Mbps_2402 1_Reference_Level_NVNT_ANT1_1Mbps_2480 Page 12 of 15 2_Bandedge_NVNT_ANT1_1Mbps_2480 Page 13 of 15 7. Spurious Emission Condition Antenna Modulation TX_Frequency (MHz) Ref_level(dBm) Spurious level(dBm) limit(dBm) Result NVNT ANT1 1Mbps 2402.00 -0.341 -49.346 -20.341 Pass NVNT ANT1 1Mbps 2440.00 -0.524 -46.185 -20.524 Pass NVNT ANT1 1Mbps 2480.00 -0.535 -48.003 -20.535 Pass 1_Reference_Level_NVNT_ANT1_1Mbps_2402 2_Spurious_Emission_NVNT_ANT1_1Mbps_2402 1_Reference_Level_NVNT_ANT1_1Mbps_2440 Page 14 of 15 2_Spurious_Emission_NVNT_ANT1_1Mbps_2440 1_Reference_Level_NVNT_ANT1_1Mbps_2480 Page 15 of 15 2_Spurious_Emission_NVNT_ANT1_1Mbps_2480

FCC TEST REPORT FCC ID: 2BUJL-LM24300 Product : Lithium iron phosphate battery pack Model Name : LM24300, LM24100, LM24200, LM256200 Brand : N/A Report No. : NCT26003739E1-1 Prepared for Guangdong Zhongju Power Technology Co., Ltd No.12 fuxing Avenue, Fuxing Industrial Zone, Futian Town, Boluo County, Huizhou city, Guangdong Province, China Prepared by Shenzhen NCT Testing Technology Co., Ltd. A101&2F B2, Fuqiao 6th Area, Xintian Community, Fuhai Street, Baoan District, Shenzhen, People’s Republic of China TEL: 400-8868-419 Report No.: NCT26003739E1-1 Page 2 of 31 Hotline: 400-8868-419 http://www.ncttesting.cn 1 TEST RESULT CERTIFICATION Applicant’s name : Guangdong Zhongju Power Technology Co., Ltd Address : No.12 fuxing Avenue, Fuxing Industrial Zone, Futian Town, Boluo County, Huizhou city, Guangdong Province, China Manufacture's name : Guangdong Zhongju Power Technology Co., Ltd Address : No.12 fuxing Avenue, Fuxing Industrial Zone, Futian Town, Boluo County, Huizhou city, Guangdong Province, China Product name : Lithium iron phosphate battery pack Model name : LM24300, LM24100, LM24200, LM256200 Standards : FCC CFR47 Part 15 Section 15.247 Test procedure : ANSI C63.10:2020 Date of test : Jan. 20, 2026 to Jan. 29, 2026 Date of Issue : Jan. 30, 2026 This device described above has been tested by NCT, and the test results show that the equipment under test (EUT) is following the FCC requirements. And it is applicable only to the tested sample identified in the report. This report shall not be reproduced except in full, without the written approval of NCT, this document may be altered or revised by NCT, personal only, and shall be noted in the revision of the document. Test Engineer: Keven Wu / Engineer Technical Manager: Henry Wang / Manager Report No.: NCT26003739E1-1 Page 3 of 31 Hotline: 400-8868-419 http://www.ncttesting.cn Contents Page 1 TEST RESULT CERTIFICATION .............................................................................................................................. 2 2 TEST SUMMARY ......................................................................................................................................................... 5 2.1 TEST SITE ........................................................................................................................................................... 6 3 GENERAL INFORMATION ........................................................................................................................................ 7 3.1 GENERAL DESCRIPTION OF E.U.T. .................................................................................................................... 7 3.2 CHANNEL LIST .................................................................................................................................................... 8 3.3 TEST SETUP CONFIGURATION ........................................................................................................................... 9 3.4 TEST MODE ........................................................................................................................................................ 9 4 EQUIPMENT DURING TEST ................................................................................................................................... 10 4.1 EQUIPMENTS LIST ............................................................................................................................................ 10 4.2 MEASUREMENT UNCERTAINTY ......................................................................................................................... 12 4.3 DESCRIPTION OF SUPPORT UNITS ................................................................................................................... 12 5 CONDUCTED EMISSION ......................................................................................................................................... 13 5.1 E.U.T. OPERATION ........................................................................................................................................... 13 5.2 EUT SETUP ...................................................................................................................................................... 13 5.3 TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .................................................................................. 14 5.4 MEASUREMENT PROCEDURE ........................................................................................................................... 14 5.5 CONDUCTED EMISSION LIMIT ........................................................................................................................... 14 5.6 MEASUREMENT DESCRIPTION .......................................................................................................................... 14 5.7 CONDUCTED EMISSION TEST RESULT ............................................................................................................. 14 6 RADIATED SPURIOUS EMISSIONS ..................................................................................................................... 15 6.1 EUT OPERATION .............................................................................................................................................. 15 6.2 TEST SETUP ..................................................................................................................................................... 16 6.3 SPECTRUM ANALYZER SETUP .......................................................................................................................... 17 6.4 TEST PROCEDURE ............................................................................................................................................ 18 6.5 SUMMARY OF TEST RESULTS ..........................................................................................................................…

Text truncated - open the document above for the full version.

FCC ID: 2BUJL-LM24300 Test Photos