2BBBN-RTB75T414G LTE Battery Pack

Page 30 of 74 Report No.: HK2601080047-2E 3.4 Band Edge Compliance LIMIT According to §27.53 (h): For operations in the 1710–1755 MHz and 2110–2155 MHz bands, the power of any emission outside a licensee’s frequency block shall be attenuated below the transmitter power (P) by at least 43 + 10 log10(P) dB. TEST CONFIGURATION TEST PROCEDURE 1. The transmitter output port was connected to base station. 2. The RF output of EUT was connected to the power meter by RF cable and attenuator, the path loss was compensated to the results for each measurement. 3. Set EUT at maximum power through base station. 4. Select lowest and highest channels for each band and different modulation. 5. Measure Band edge using RMS (Average) detector by spectrum. TEST RESULTS Remark: 1. We were tested all RB Configuration refer 3GPP TS136 521 for each Channel Bandwidth of LTE FDD Band 4; recorded worst case for each Channel Bandwidth of LTE FDD Band 4. LTTE FDD Ban QPSK 6RB#0 6RB#0 P nd 4-1.4MHz Page 31 of 74 Channel Ba Low Chan High Chan 4 ndwidth Ban nnel nnel Rep nd Edge Com 16Q 6R 6R port No.: HK2 mpliance QAM RB#0 RB#0 2601080047 -2E LLTE FDD Ban QPSK 15RB#0 15RB#0 P nd 4-3MHz C Page 32 of 74 Channel Ban Low Chan High Chan 4 ndwidth Band nnel nnel Rep d Edge Comp 16Q 15R 15R port No.: HK2 pliance QAM RB#0 RB#0 2601080047 -2E LLTE FDD Ban QPSK 25RB#0 25RB#0 P nd 4-5MHz C Page 33 of 74 Channel Ban Low Chan High Chan 4 ndwidth Band nnel nnel Rep d Edge Comp 16Q 25R 25R port No.: HK2 pliance QAM RB#0 RB#0 2601080047 -2E LTE FDD Ban QPSK 50RB#0 50RB#0 P nd 4-10MHz Page 34 of 74 Channel Ban Low Chan High Chan 4 ndwidth Ban nnel nnel Rep d Edge Com 16Q 50R 50R port No.: HK2 mpliance QAM RB#0 RB#0 2601080047 -2E LTE FDD Ban QPSK 75RB#0 75RB#0 P nd 4-15MHz Page 35 of 74 Channel Ban Low Chan High Chan 4 ndwidth Ban nnel nnel Rep d Edge Com 16Q 75R 75R port No.: HK2 mpliance QAM RB#0 RB#0 2601080047 -2E LTE FDD Ban QPSK 100RB#0 100RB#0 P nd 4-20MHz Page 36 of 74 Channel Ban Low Chan High Chan 4 ndwidth Ban nnel nnel Rep d Edge Com 16Q 100R 100R port No.: HK2 mpliance QAM RB#0 RB#0 2601080047 -2E Page 37 of 74 Report No.: HK2601080047-2E 3.5 Spurious Emission LIMIT According to §27.53 (h): For operations in the 1710–1755 MHz and 2110–2155 MHz bands, the power of any emission outside a licensee’s frequency block shall be attenuated below the transmitter power (P) by at least 43 + 10 log10(P) dB. TEST CONFIGURATION Conducted Spurious Measurement: Radiated Spurious Measurement: TEST PROCEDURE The EUT was setup according to ANSI/TIA-603-E. Conducted Spurious Measurement: a. Place the EUT on a bench and set it in transmitting mode. b. Connect a low loss RF cable from the antenna port to a spectrum analyzer and CMW500 by a Directional Couple. c. EUT Communicate with CMW500, then select a channel for testing. d. Add a correction factor to the display of spectrum, and then test. e. The resolution bandwidth of the spectrum analyzer was set sufficient scans were taken to show the out of band Emission if any up to10 th harmonic. f. Please refer to following tables for test antenna conducted emissions. Working Frequency Sub range (GHz) RBW VBW Sweep time (s) LTE FDD Band 4 0.000015~0.03 10KHz 30KHz Auto 0.03~1 100KHz 300KHz Auto 1~20 1 MHz 3 MHz Auto Page 38 of 74 Report No.: HK2601080047-2E Radiated Spurious Measurement: a. The EUT shall be placed at the specified height on a support, and in the position closest to normal use as declared by provider. b. The test antenna shall be oriented initially for vertical polarization and shall be chosen to correspond to the frequency of the transmitter. c. The output of the test antenna shall be connected to the measuring receiver. d. The transmitter shall be switched on and the measuring receiver shall be tuned to the frequency of the transmitter under test. e. The test antenna shall be raised and lowered through the specified range of height until a maximum signal level is detected by the measuring receiver. f. The transmitter shall then be rotated through 360°in the horizontal plane, until the maximum signal level is detected by the measuring receiver. g. The test antenna shall be raised and lowered again through the specified range of height until a maximum signal level is detected by the measuring receiver. h. The maximum signal level detected by the measuring receiver shall be noted. i. The transmitter shall be replaced by a substitution antenna. j. The substitution antenna shall be orientated for vertical polarization and the length of the substitution antenna shall be adjusted to correspond to the frequency of the transmitter. k. The substitution antenna shall be connected to a calibrated signal generator. l. If necessary, the input attenuator setting of the measuring receiver shall be adjusted in order to increase the sensitivity of the measuring receiver. m. The test antenna shall be raised and lowered through the specified range of height to ensure that the maximum signal is received. n. The input signal to the substitution antenna shall be adjusted to the level that produces a level detected by the measuring receiver, that is equal to the level noted while the transmitter radiated power was measured, corrected for the change of input attenuator setting of the measuring receiver. o. The measurement shall be repeated with the test antenna and the substitution antenna orientated for horizontal polarization. p. The measure of the effective radiated power is the larger of the two levels recorded at the input to the substitution antenna, corrected for gain of the substitution antenna if necessary. q. The resolution bandwidth of the spectrum analyzer was set at 100 kHz for Part 22 and 1MHz for Part 24. The frequency range was checked up to 10th harmonic. r. Test site anechoic chamber refer to ANSI C63. TEST RESULTS Remark: 1. We were tested all RB Configuration refer 3GPP TS136 521 for each Channel Bandwidth of LTE FDD Band 4; recorded worst case for each Channel Bandwidth of LTE FDD Band…

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Test Model: RTB75T41 Radiated Emission RF Conducted Emission

Report R FCC ID . Compile ( positio n Supervis ( position Approve ( position Date of i Testing Address Applica Address Test Sp Standa r TRF Orig Shenzhe This pub Shenzhe material liability f o placeme Product Trade M Manufac Model N Series M Modulati Rating .. Hardwa r Software Result... Reference No .................... d by n+printed na sed by n+printed na ed by n+printed na issue ............ Laboratory ................... nt’s Name .. ................... ecification rd ................. ginator ......... en HUAK Te blication may en HUAK Te . Shenzhen H or damages ent and conte t Name ........ Mark .............. cturer .......... Name ............ Model(s) ..... ion Type ...... .................... re Version .... e Version ..... .................... o. ................. .................... ame+signatur ame+signatur ame+signatur .................... y Name ........ .................... .................... .................... .................... .................... esting Tech y be reproduc sting Techno HUAK Testin resulting fro ext. .................... .................... .................... .................... .................... .................... .................... .................... .................... .................... P FC ...... : HK26 ...... : 2BBB re) .. : Testi n re) .. : Tech n re) .. : Autho ...... : Mar. 0 ......: Shen ...... : 1-2/F . Hepin ......: Hang ...... : Roo m Cangq ......: FCC C ...... : Shenz nology Co., ced in whole ology Co., Lt ng Technolog m the reader ...... : 4G L T ...... : Redt i ...... : Han g ...... : RTB7 ...... : RTB7 ...... : QPSK ...... : DC12 ...... : V1.0 ...... : V1.0 ...... : P ASS Page 1 of 67 CC Test R 601080047-1 BN-RTB75T4 ng Engineer nical Manage orized Signat 02, 2026 zhen HUA K ., Building B2 ng, Fuhai Stre zhou Tanlin m 701, South qian Street, Y CFR Title 47 zhen HUAK Ltd. All righ or in part fo td. is acknow gy Co., Ltd. t r's interpreta TE Battery P iger gzhou Tanlin 75T41 75N21, RTB3 K, 16QAM 2V From DC S Shenz h Report E 41 Len Liao er Sliver Wa tory Jason Zh K Testing Tec 2, Junfeng Z eet, Bao’an D nk Technolo Building, Bu Yuhang Dist 7 Part 2, Par Testing Tech hts reserved r non-comme wledged as co takes no res ation of the re Pack nk Technolo 32N11, RTB Power or D C hen HUAK T Rep an hou chnology C hongcheng Z District, Shen ogy Co.,Ltd. uilding 3, No. trict, Hangzh rt 24E hnology Co., d. ercial purpos opyright own ponsibility fo eproduced m ogy Co.,Ltd. 75T42, RTB C9.6V From Testing Techn port No.: HK2 o., Ltd. Zhizao Innov nzhen, Guan .16, Longtan ou, Zhejian g , Ltd. ses as long a ner and sourc or and will no material due t . B75T43, RTB Battery nology Co., L 2601080047- vation Park, ngdong, Chin Road, g, China as the ce of the t assume o its B75T45 Ltd. -1E na Page 2 of 70 Report No.: HK2601080047-1E T E S T R E P O R T Test Report No.: HK2601080047-1E Mar. 02, 2026 ______________________________________________________________________________________________ Date of issue Product Name : 4G LTE Battery Pack Model Name : RTB75T41 Series Model(s) : RTB75N21, RTB32N11, RTB75T42, RTB75T43, RTB75T45 Applicant : Hangzhou Tanlink Technology Co.,Ltd. Address : Room 701, South Building, Building 3, No.16, Longtan Road, Cangqian Street, Yuhang District, Hangzhou, Zhejiang, China Manufacturer : Hangzhou Tanlink Technology Co.,Ltd. Address : Room 701, South Building, Building 3, No.16, Longtan Road, Cangqian Street, Yuhang District, Hangzhou, Zhejiang, 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. Page 3 of 70 Report No.: HK2601080047-1E Contents 1 Test Standards ...................................................................... 5 2 Summary .............................................................................. 6 2.1 General Remarks 6 2.2 Product Description 6 2.3 Equipment Under Test 6 2.4 Short Description of The Equipment Under Test (EUT) 6 2.5 Test Frequency List 7 2.6 Normal Accessory Setting 7 2.7 EUT Configuration 7 2.8 Related Submittal(s) / Grant (s) 7 2.9 Modifications 7 2.10 GeneralTest Conditions/Configurations 8 3 Test Environment .................................................................. 9 3.1 Information of The Test Laboratory 9 3.2 Environmental Conditions 9 3.3 Test Description 9 3.4 Equipments Used During The Test 10 4 Test Conditions and Results .................................................. 12 4.1 Output Power 12 4.2 Peak-to-Average Ratio (PAR) 18 4.3 Occupied Bandwidth and Emission Bandwidth 25 4.4 Band Edge Compliance 32 4.5 Spurious Emission on Antenna Port 39 4.6 Radiated Spurious Emission 58 4.7 Frequency Stability 66 5 Test Setup Photos of the EUT ................................................ 68 6 Photos of the EUT ................................................................ 70 Page 4 of 70 Report No.: HK2601080047-1E ** Issued history ** Revision Description Issued Date Remark Revision 1.0 Initial Test Report Release Mar. 02, 2026 Jason Zhou Page 5 of 70 Report No.: HK2601080047-1E 1 Test Standards The tests were performed according to following standards: FCC Part 24: Public Mobile Services. ANSI/TIA-603-E-2016: Land Mobile FM or PM Communications Equipment Measurement and Performance Standards. FCC Part 2: Frequency Alloca-Tions and Radio Treaty Mat-Ters; General Rules and Reg-Ulations. KDB971168 D01:v03r01: Measurement Guidance For Certification of Licensed Digital Transmitters. ANSI C63.4: Methods of Measurement of Radio-Noise Emissions from Low-Voltage Electrical and Electronic Equipment in the Range of 9 kHz to 40 GHz. Page 6 of 70 Report No.: HK2601080047-1E 2 Summary 2.1 General Remarks Date of receipt of test sample : Jan. 08, 2026 Testing commenced on : Jan. 08, 2026 Testing concluded on : Mar. 02, 2026 2.2 Product Description The Hangzhou Tanlink Technology Co.,Ltd.’s Model: RTB75T41 or the “EUT” as referre…

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Report R FCC ID . Compile ( positio n Supervis ( position Approve ( position Date of i Testing Address Applica Address Test Sp Standa r Shenzhe This pub Shenzhe material liability f o placeme Product Trade M Manufac Model N Series M Ratings. Modulat i Hardwar Software Frequen Result ... Reference No .................... d by n+printed na sed by n+printed na ed by n+printed na issue ............ Laboratory .................... nt’s Name .. .................... ecification rd ................. en HUAK Te blication may en HUAK Te . Shenzhen H or damages ent and conte t Name ........ Mark .............. cturer .......... ame ............ Model(s) ....... .................... ion .............. re Version .... e Version .... ncy ................ .................... o. ................ .................... ame+signatur ame+signatur ame+signatur .................... y Name ........ .................... .................... .................... .................... esting Tech y be reproduc sting Techno HUAK Testin resulting fro ext. .................... .................... .................... .................... .................... .................... .................... .................... .................... .................... .................... P F ...... : HK2 6 ...... : 2BB B re) .. : Testi n re) .. : Tech n re) .. : Autho ...... : Mar. 0 ..... : She n ...... : 1-2/F Hepi n China ..... : Han g ...... : Roo m Cang ..... : FCC nology Co., ced in whole ology Co., Lt ng Technolog m the reader ......: 4G L T ...... : Redti ......: Han g ...... : RTB7 ...... : RTB7 ...... : DC12 ...... : QPSK ...... : V1.0 ...... : V1.0 ....... LTE B ...... : P ASS age 1 of 53 FCC Test R FCC Part 601080047-8 BN-RTB75T4 ng Engineer nical Manage orized Signat 02, 2026 nzhen HUAK ., Building B2 ng, Fuhai Str a gzhou Tanlin m 701, South qian Street, Part 27 Ltd. All righ or in part fo td. is acknow gy Co., Ltd. t r's interpreta TE Battery P ger gzhou Tanlin 75T41 75N21, RTB3 2V From DC K, 16QAM Band 71: 663 S Shenz h Report t 27 8E 41 Len Liao er Sliver Wa tory Jason Z K Testing Te 2, Junfeng Z reet, Bao’an nk Technolo h Building, Bu Yuhang Dist hts reserved r non-comme wledged as co takes no resp ation of the re Pack nk Technolo 32N11, RTB7 Power or DC 3MHz - 698 M hen HUAK T Repo an Zhou echnology C Zhongcheng District, Sh e ogy Co.,Ltd. uilding 3, No trict, Hangzh d. ercial purpos opyright own ponsibility fo eproduced m ogy Co.,Ltd. 75T42, RTB7 C9.6V From MHz Testing Techn ort No.: HK2 Co., Ltd. Zhizao Innov enzhen, Guan .16, Longta n hou, Zhejiang ses as long a ner and sourc or and will no material due t 75T43, RTB7 Battery nology Co., L 2601080047- vation Park, ngdong, n Road, g, China as the ce of the t assume o its 75T45 Ltd. -8E Page 2 of 53 Report No.: HK2601080047-8E T E S T R E P O R T Test Report No.: HK2601080047-8E Mar. 02, 2026 ______________________________________________________________________________________________ Date of issue Product Name : 4G LTE Battery Pack Model Name : RTB75T41 Series Models : RTB75N21, RTB32N11, RTB75T42, RTB75T43, RTB75T45 Applicant : Hangzhou Tanlink Technology Co.,Ltd. Address : Room 701, South Building, Building 3, No.16, Longtan Road, Cangqian Street, Yuhang District, Hangzhou, Zhejiang, China Manufacturer : Hangzhou Tanlink Technology Co.,Ltd. Address : Room 701, South Building, Building 3, No.16, Longtan Road, Cangqian Street, Yuhang District, Hangzhou, Zhejiang, 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. Page 3 of 53 Report No.: HK2601080047-8E Contents 1 Summary 5 1.1 Test Standards 5 1.2 Test Description 5 1.3 Information of the Test Laboratory 6 1.4 Statement of the measurement uncertainty 6 2 General Information 7 2.1 Environmental conditions 7 2.2 Description of Test Modes 7 2.3 Test Frequency List 7 2.4 Equipments Used during the Test 8 2.5 Modifications 9 3 Test Conditions And Results 10 3.1 Output Power 10 3.2 Peak-to-Average Ratio (PAR) 15 3.3 Occupied Bandwidth and Emission Bandwidth 20 3.4 Band Edge compliance 25 3.5 Spurious Emission 30 3.6 Frequency Stability under Temperature & Voltage Variations 49 4 Test Setup Photos of the EUT 51 5 Photos of the EUT 53 Page 4 of 53 Report No.: HK2601080047-8E ** Issued History ** Revision Description Issued Date Remark Revision 1.0 Initial Test Report Release Mar. 02, 2026 Jason Zhou Page 5 of 53 Report No.: HK2601080047-8E 1 Summary 1.1 Test Standards The tests were performed according to following standards: FCC Part 27: Miscellaneous Wireless Communications Services ANSI/TIA-603-E-2016: Land Mobile FM or PM Communications Equipment Measurement and Performance Standards. FCC Part 2: Frequency Alloca-Tions and Radio Treaty Mat-Ters; General Rules and Reg-Ulations KDB971168 D01 v03r01: Measurement Guidance For Certification of Licensed Digital Transmitters 1.2 Test Description Test Item FCC Rule No. Result RF Output Power Part 2.1046 Part 27.50(c)(10) Pass Peak-to-Average Ratio Part 2.1046 Pass 99% & -26 dB Occupied Bandwidth Part 2.1049 Pass Spurious Emissions at Antenna Terminal Part 2.1051 Part 27.53(g) Pass Field Strength of Spurious Radiation Part 2.1053 Part 27.53(g) Pass Out of Band Emission, Band Edge Part 2.1051 Part 27.53(g) Pass Frequency Stability Part 2.1055 Part 27.54 Pass Note: 1. Pass: Test item meets the requirement. 2. Fail: Test item does not meet the requirement. 3. N/A: Test case does not apply to the test object. 4. The test result judgment is decided by the limit of test standard. 5. The measurement uncertainty is not included in the test result. Page 6 of 53 Report No.: HK2601080047-8E 1.3 Information of the Test Laboratory Shenzhen HUAK Testing Technology Co., Ltd. Add.: 1-2/F., Building B2, Junfeng Zhongcheng Zhizao Innovation Park, Heping, Fuhai Street, Bao’an District, Shenzhen, Guangdong, China 1.4 Statement of the measurement…

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Page 38 of 69 Report No.: HK2601080047-7E 3.5 Spurious Emission LIMIT According to §27.53 (h): For operations in the 1710–1755 MHz and 2110–2155 MHz bands, the power of any emission outside a licensee’s frequency block shall be attenuated below the transmitter power (P) by at least 43 + 10 log10(P) dB. TEST CONFIGURATION Conducted Spurious Measurement: Radiated Spurious Measurement: TEST PROCEDURE The EUT was setup according to ANSI/TIA-603-E. Conducted Spurious Measurement: a. Place the EUT on a bench and set it in transmitting mode. b. Connect a low loss RF cable from the antenna port to a spectrum analyzer and CMW500 by a Directional Couple. c. EUT Communicate with CMW500, then select a channel for testing. d. Add a correction factor to the display of spectrum, and then test. e. The resolution bandwidth of the spectrum analyzer was set sufficient scans were taken to show the out of band Emission if any up to10 th harmonic. Page 39 of 69 Report No.: HK2601080047-7E f. Please refer to following tables for test antenna conducted emissions. Working Frequency Sub range (GHz) RBW VBW Sweep time (s) LTE FDD Band 66 0.000009~0.000015 1KHz 3KHz Auto 0.000015~0.03 10KHz 30KHz Auto 0.03~1 100KHz 300KHz Auto 1~26.5 1 MHz 3 MHz Auto Radiated Spurious Measurement: a. The EUT shall be placed at the specified height on a support, and in the position closest to normal use as declared by provider. b. The test antenna shall be oriented initially for vertical polarization and shall be chosen to correspond to the frequency of the transmitter. c. The output of the test antenna shall be connected to the measuring receiver. d. The transmitter shall be switched on and the measuring receiver shall be tuned to the frequency of the transmitter under test. e. The test antenna shall be raised and lowered through the specified range of height until a maximum signal level is detected by the measuring receiver. f. The transmitter shall then be rotated through 360°in the horizontal plane, until the maximum signal level is detected by the measuring receiver. g. The test antenna shall be raised and lowered again through the specified range of height until a maximum signal level is detected by the measuring receiver. h. The maximum signal level detected by the measuring receiver shall be noted. i. The transmitter shall be replaced by a substitution antenna. j. The substitution antenna shall be orientated for vertical polarization and the length of the substitution antenna shall be adjusted to correspond to the frequency of the transmitter. k. The substitution antenna shall be connected to a calibrated signal generator. l. If necessary, the input attenuator setting of the measuring receiver shall be adjusted in order to increase the sensitivity of the measuring receiver. m. The test antenna shall be raised and lowered through the specified range of height to ensure that the maximum signal is received. n. The input signal to the substitution antenna shall be adjusted to the level that produces a level detected by the measuring receiver, that is equal to the level noted while the transmitter radiated power was measured, corrected for the change of input attenuator setting of the measuring receiver. o. The measurement shall be repeated with the test antenna and the substitution antenna orientated for horizontal polarization. p. The measure of the effective radiated power is the larger of the two levels recorded at the input to the substitution antenna, corrected for gain of the substitution antenna if necessary. q. The resolution bandwidth of the spectrum analyzer was set at 100 kHz for Part 22 and 1MHz for Part 24. The frequency range was checked up to 10th harmonic. r. Test site anechoic chamber refer to ANSI C63. TEST RESULTS Remark: 1. We were tested all RB Configuration refer 3GPP TS136 521 for each Channel Bandwidth of LTE FDD Band 66; recorded worst case for each Channel Bandwidth of LTE FDD Band 66. Conducted Measurement: 30 1 3G LT QPSK 0MHz~1GHz GHz~3GHz GHz~20GHz 1RB#0 TE FDD Band z z Page 40 o d 66-1.4MHz Low Chan of 69 z Channel Ba nnel Repor andwidth 16Q 30MHz 1GHz 3GHz~ 1R rt No.: HK260 QAM z~1GHz z~3GHz ~20GHz RB#0 01080047-7E E 30 1 3G LT QPSK 0MHz~1GHz GHz~3GHz GHz~20GHz 1RB#0 TE FDD Band z z Page 41 o d 66-1.4MHz Middle Cha of 69 z Channel Ba annel Repor andwidth 16Q 30MHz 1GHz 3GHz~ 1R rt No.: HK260 QAM z~1GHz z~3GHz ~20GHz RB#0 01080047-7E E 30 1 3G LT QPSK 0MHz~1GHz GHz~3GHz GHz~20GHz 1RB#0 TE FDD Band z z Page 42 o d 66-1.4MHz High Chan of 69 z Channel Ba nnel Repor andwidth 16Q 30MHz 1GHz 3GHz~ 1R rt No.: HK260 QAM z~1GHz z~3GHz ~20GHz RB#0 01080047-7E E 30 1 3G L QPSK 0MHz~1GHz GHz~3GHz GHz~20GHz 1RB#0 TE FDD Ban z z Page 43 o nd 66-3MHz Low Chan of 69 Channel Ban nnel Repor ndwidth 16Q 30MHz 1GHz 3GHz~ 1R rt No.: HK260 QAM z~1GHz z~3GHz ~20GHz RB#0 01080047-7E E 30 1 3G L QPSK 0MHz~1GHz GHz~3GHz GHz~20GHz 1RB#0 TE FDD Ban z z Page 44 o nd 66-3MHz Middle Cha of 69 Channel Ban annel Repor ndwidth 16Q 30MHz 1GHz 3GHz~ 1R rt No.: HK260 QAM z~1GHz z~3GHz ~20GHz RB#0 01080047-7E E 30 1 3G L QPSK 0MHz~1GHz GHz~3GHz GHz~20GHz 1RB#0 TE FDD Ban z z Page 45 o nd 66-3MHz High Chan of 69 Channel Ban nnel Repor ndwidth 16Q 30MHz 1GHz 3GHz~ 1R rt No.: HK260 QAM z~1GHz z~3GHz ~20GHz RB#0 01080047-7E E 30 1 3G L QPSK 0MHz~1GHz GHz~3GHz GHz~20GHz 1RB#0 TE FDD Ban z z Page 46 o nd 66-5MHz Low Chan of 69 Channel Ban nnel Repor ndwidth 16Q 30MHz 1GHz 3GHz~ 1R rt No.: HK260 QAM z~1GHz z~3GHz ~20GHz RB#0 01080047-7E E 30 1 3G L QPSK 0MHz~1GHz GHz~3GHz GHz~20GHz 1RB#0 TE FDD Ban z z Page 47 o nd 66-5MHz Middle Cha of 69 Channel Ban annel Repor ndwidth 16Q 30MHz 1GHz 3GHz~ 1R rt No.: HK260 QAM z~1GHz z~3GHz ~20GHz RB#0 01080047-7E E 30 1 3G L QPSK 0MHz~1GHz GHz~3GHz GHz~20GHz 1RB#0 TE FDD Ban z z Page 48 o nd 66-5MHz High Chan of 69 Channel Ban nnel Repor ndwidth 16Q 30MHz 1GHz 3GHz~ 1R rt No.: HK260 QAM z~1GHz z~3GHz ~20GHz RB#0 01080047-7E E 30 1 3G LT QPSK 0MHz~1GHz GHz~3GHz GHz~20GHz 1RB#0 TE FDD Band z z Page 49 o d 66…

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Report R FCC ID . Compile ( positio n Supervis ( position Approve ( position Date of i Testing Address Applica Address Test Sp Standa r TRF Orig Shenzhe This pub Shenzhe material liability f o placeme Product Trade M Manufac Model N Series M Modulati Rating .. Hardwa r Software Result... Reference No .................... d by n+printed na sed by n+printed na ed by n+printed na issue ............ Laboratory ................... nt’s Name .. ................... ecification rd ................. ginator ......... en HUAK Te blication may en HUAK Te . Shenzhen H or damages ent and conte t Name ....... Mark .............. cturer .......... Name ............ Model(s) ....... ion Type ...... .................... re Version .... e Version .... .................... o. ................. .................... ame+signatur ame+signatur ame+signatur .................... y Name ........ .................... .................... .................... .................... .................... esting Tech y be reproduc sting Techno HUAK Testin resulting fro ext. .................... .................... .................... .................... .................... .................... .................... .................... .................... .................... FC ...... : ...... : HK26 2BBB re) .. : Testi re) .. : Tech re) .. : Autho ...... : Mar. ...... : She n ...... : 1-2/ F Hepin China ...... : Han g ...... : Roo m Cang ......: FCC ...... : She n nology Co., ced in whole ology Co., Lt ng Technolog m the reader ...... : 4G L T ...... : Redt i ...... : Han g ...... : RTB7 ...... : RTB7 ...... : QPSK ...... : DC12 ...... : V1.0 ...... : V1.0 ...... : P ASS Page 1 of CC Test R 601080047-7 BN-RTB75T4 ng Engineer nical Manag orized Signa 02, 2026 nzhen HUAK F., Building B ng, Fuhai Str a gzhou Tanlin m 701, South gqian Street, CFR Title 4 nzhen HUAK Ltd. All righ or in part fo td. is acknow gy Co., Ltd. t r's interpreta TE Battery P iger gzhou Tanlin 75T41 75N21, RTB3 K, 16QAM 2V From DC S 69 Shenz h Report 7E 41 Len Liao er Sliver W a tory Jason Z K Testing Te B2, Junfeng Z reet, Bao’an nk Technolo h Building, Bu Yuhang Dyi 7 Part 2, Pa Testing Te c hts reserved r non-comme wledged as co takes no res ation of the re Pack nk Technolo 32N11, RTB Power or D C hen HUAK T Repo an Zhou echnology C Zhongcheng District, Sh e ogy Co.,Ltd. uilding 3, No strict, Hangz rt 27 chnology Co. d. ercial purpos opyright own ponsibility fo eproduced m ogy Co.,Ltd. 75T42, RTB C9.6V From Testing Techn ort No.: HK2 Co., Ltd. Zhizao Innov enzhen, Gua . o.16, Longtan zhou, Zhejian , Ltd. ses as long a ner and sourc or and will no material due t . B75T43, RTB Battery nology Co., L 2601080047- vation Park, ngdong, n Road, ng, China as the ce of the t assume o its B75T45 Ltd. -7E Page 2 of 69 Report No.: HK2601080047-7E T E S T R E P O R T Test Report No.: HK2601080047-7E Mar. 02, 2026 ______________________________________________________________________________________________ Date of issue Product Name : 4G LTE Battery Pack Model Name : RTB75T41 Series Model(s) : RTB75N21, RTB32N11, RTB75T42, RTB75T43, RTB75T45 Applicant : Hangzhou Tanlink Technology Co.,Ltd. Address : Room 701, South Building, Building 3, No.16, Longtan Road, Cangqian Street, Yuhang District, Hangzhou, Zhejiang, China Manufacturer : Hangzhou Tanlink Technology Co.,Ltd. Address : Room 701, South Building, Building 3, No.16, Longtan Road, Cangqian Street, Yuhang District, Hangzhou, Zhejiang, 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. Page 3 of 69 Report No.: HK2601080047-7E Contents 1 Summary 5 1.1 Test Standards 5 1.2 Test Description 5 1.3 Information of The Test Laboratory 6 1.4 Statement of The Measurement Uncertainty 6 2 General Information 7 2.1 Environmental Conditions 7 2.2 Description of Test Modes 7 2.3 Test Frequency List 7 2.4 Equipments Used during the Test 8 2.5 Related Submittal(s) / Grant(s) 10 2.6 Modifications 10 3 Test Conditions and Results 11 3.1 Output Power 11 3.2 Peak-to-Average Ratio (PAR) 17 3.3 Occupied Bandwidth and Emission Bandwidth 24 3.4 Band Edge Compliance 31 3.5 Spurious Emission 38 3.6 Frequency Stability under Temperature & Voltage Variations 65 4 Test Setup Photos of the EUT 67 5 Photos of the EUT 69 Page 4 of 69 Report No.: HK2601080047-7E ** Issued History ** Revision Description Issued Date Remark Revision 1.0 Initial Test Report Release Mar. 02, 2026 Jason Zhou Page 5 of 69 Report No.: HK2601080047-7E 1 Summary 1.1 Test Standards The tests were performed according to following standards: FCC Part 27: Miscellaneous Wireless Communications Services. ANSI/TIA-603-E-2016: Land Mobile FM or PM Communications Equipment Measurement and Performance Standards. FCC Part 2: Frequency Alloca-Tions and Radio Treaty Mat-Ters; General Rules and Reg-Ulations. KDB 971168 D01 v03r01: Measurement Guidance For Certification of Licensed Digital Transmitters. 1.2 Test Description Test Item Section in CFR 47 Result RF Output Power Part 2.1046 Part 27.50(d)(4) Pass Peak-to-Average Ratio Part 27.50(d)(4) Pass 99% & -26 dB Occupied Bandwidth Part 2.1049 Part 27.53(h) Pass Spurious Emissions at Antenna Terminal Part 2.1051 Part 27.53(h) Pass Field Strength of Spurious Radiation Part 2.1053 Part 27.53(h) Pass Out of Band Emission, Band Edge Part 2.1051 Part 27.53(h) Pass Frequency Stability Part 2.1055 Part 27.54 Pass Note: 1. Pass: Test item meets the requirement. 2. Fail: Test item does not meet the requirement. 3. N/A: Test case does not apply to the test object. 4. The test result judgment is decided by the limit of test standard. 5. The measurement uncertainty is not included in the test result. Page 6 of 69 Report No.: HK2601080047-7E 1.3 Information of The Test Laboratory Shenzhen HUAK Testing Technology Co., Ltd. Add.: 1-2/F., Buildin…

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