Info Sarkar Phase3 Project LFELI-48100TB [V:01, 2022052301] On-Site Battery Backup Testing Report Battery Model: LFELI-48100TB Battery Serial No: TFP22012348100C0859 Testing Location: Islamia Kamil Madrahsa, Uttar Badda NTTN User: Summit Communications Ltd Required User: Summit Communications Ltd & Fiber@Home Ltd. Testing Dept: Info-Sarker Phase 3 Project Date of Testing: May.19~May.20, 2022 1 Info Sarkar Phase3 Project 1. LFELI-48100TB [V:01, 2022052301] Information Description of commodity (Name, Model, Quantity…) Lithium-ion Battery LFELI-48100TB 01Pcs Procuring Entity (Name, Address…) Info-Sarker Phase 3 Project Bangladesh Computer Council (BCC), Information and Communication Technology Division, ICT Tower, Plot#E-14/X, Agargaon, Dhaka-1207 Supplier (Name, Address…) Ingen Technology Limited Red Crescent Concord Tower (4th Floor), Mohakhali C/A, Dhaka-1212, Dhaka-1212 Item Satisfactory Non-conforming Battery Backup Test 2 Rejected Subject to PE’s Evaluation Info Sarkar Phase3 Project 2. LFELI-48100TB [V:01, 2022052301] Battery Backup Test - On Site (Qty: 01 Pcs) Model 48100T B Serial No TFP22012348100C08 59 Nominal Capacity 100Ah Qty 01 Require d Dept Summit Communications Ltd & Fiber @Home Ltd Test Date May.19~May.2 0, 2022 Equipment Charging Device: Huawei Rectifier Cabinet Backup Uttar Test Badd Location a Test No. 01 Discharging Device: DC Load Device Testing Environment al Conditions Backup Test Procedures Ambient Temperature: (36±3)°C; Relative Humidity: 75%~85% N.B.: Temperature: (25±5)°C 1) Set battery aside for 30 min 2) Discharge battery with 0.8~1.5A load current for 20 Hrs 3) Charge battery with 10~40A current charging, Charge about 30% of the rated capacity. Sl No. Voltage Discharge before Current (A) Discharge Time Discharge Criterion Result 19.36~22.66 Discharge PASS AH Capacity ≥ 20AH Capacity (AH) backup test 01 50.99 0.88~0.9A 22h40min 3 Info Sarkar Phase3 Project 3. LFELI-48100TB [V:01, 2022052301] Battery Backup Test Result Sl No. Date & Time 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 19/05/2022 03:35PM 19/05/2022 04:07PM 19/05/2022 04:37PM 19/05/2022 05:07PM 19/05/2022 05:36PM 19/05/2022 06:07PM 19/05/2022 06:37PM 19/05/2022 07:07PM 19/05/2022 07:36PM 19/05/2022 08:07PM 19/05/2022 08:37PM 19/05/2022 09:07PM 19/05/2022 09:38PM 19/05/2022 10:07PM 19/05/2022 10:35PM 19/05/2022 11:17PM 19/05/2022 11:36PM 20/05/2022 00:35AM 20/05/2022 01:06AM 20/05/2022 01:35AM 20/05/2022 02:09AM 20/05/2022 02:35AM 20/05/2022 03:05AM 20/05/2022 03:35AM 20/05/2022 04:05AM 20/05/2022 04:35AM 20/05/2022 05:05AM 20/05/2022 05:35AM 20/05/2022 06:05AM 20/05/2022 06:44AM 20/05/2022 07:05AM 20/05/2022 07:20AM 20/05/2022 07:35AM 20/05/2022 08:07AM 20/05/2022 08:38AM Battery Display Voltage (V) Battery Discharge Current (A) 50.76 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 50.14 49.93 49.84 49.84 49.84 49.83 49.84 49.83 49.83 49.83 49.83 49.83 49.82 49.82 49.81 49.81 49.81 49.81 49.8 49.8 49.79 49.79 49.79 49.78 49.78 49.78 49.78 49.78 49.78 49.78 49.78 49.78 49.78 49.78 4 Rectifier Display Voltage (V) 52.8 50.2 50 49.9 49.9 49.9 49.9 49.9 49.9 49.9 49.9 49.9 49.9 49.9 49.9 49.9 49.9 49.9 49.9 49.9 49.9 49.9 49.9 49.9 49.9 49.9 49.9 49.9 49.8 49.8 49.8 49.8 49.8 49.8 Rectifier Load Current (A) 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 Info Sarkar Phase3 Project LFELI-48100TB [V:01, 2022052301] Sl No. Date & Time Battery Display Voltage (V) Battery Discharge Current (A) Rectifier Display Voltage (V) Rectifier Load Current (A) 36 37 38 39 40 41 42 43 44 20/05/2022 09:07AM 20/05/2022 09:36AM 20/05/2022 10:06AM 20/05/2022 10:38AM 20/05/2022 11:08AM 20/05/2022 11:38AM 20/05/2022 12:06PM 20/05/2022 12:42PM 20/05/2022 02:07PM 49.77 49.77 49.77 49.77 49.77 49.77 49.77 49.77 49.77 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 49.8 49.8 49.8 49.8 49.8 49.8 49.8 49.8 49.8 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 0.9 Observing Disclaimer In accordance with PE’s Instruction, InGen involved their resources at the NTTN test premises during battery backup test and took the real time technical measurements. During the battery backup test, did not exclude any device, action, or exclusion for the results of the battery backup analysis. 5 Info Sarkar Phase3 Project 4. LFELI-48100TB [V:01, 2022052301] Photos 6 Info Sarkar Phase3 Project LFELI-48100TB [V:01, 2022052301] 7 Info Sarkar Phase3 Project LFELI-48100TB [V:01, 2022052301] 8 Info Sarkar Phase3 Project LFELI-48100TB [V:01, 2022052301] 9 Info Sarkar Phase3 Project LFELI-48100TB [V:01, 2022052301] 10 Info Sarkar Phase3 Project LFELI-48100TB [V:01, 2022052301] 11 Info Sarkar Phase3 Project LFELI-48100TB [V:01, 2022052301] 12 Info Sarkar Phase3 Project LFELI-48100TB [V:01, 2022052301] 13 Info Sarkar Phase3 Project LFELI-48100TB [V:01, 2022052301] 14 Info Sarkar Phase3 Project LFELI-48100TB [V:01, 2022052301] 15 Info Sarkar Phase3 Project LFELI-48100TB [V:01, 2022052301] 16 Info Sarkar Phase3 Project LFELI-48100TB [V:01, 2022052301] 17 Info Sarkar Phase3 Project LFELI-48100TB [V:01, 2022052301] 18 Info Sarkar Phase3 Project LFELI-48100TB [V:01, 2022052301] 19 Info Sarkar Phase3 Project LFELI-48100TB [V:01, 2022052301] 20 Info Sarkar Phase3 Project LFELI-48100TB [V:01, 2022052301] 21 Info Sarkar Phase3 Project LFELI-48100TB [V:01, 2022052301] 22 Info Sarkar Phase3 Project LFELI-48100TB [V:01, 2022052301] 23 Info Sarkar Phase3 Project LFELI-48100TB [V:01, 2022052301] 24 Info Sarkar Phase3 Project LFELI-48100TB [V:01, 2022052301] 25 Info Sarkar Phase3 Project LFELI-48100TB [V:01, 2022052301] 26 Info Sarkar Phase3 Project LFELI-48100TB [V:01, 2022052301] 27 Info Sarkar Phase3 Project LFELI-48100TB [V:01, 2022052301] 28 Info Sarkar Phase3 Project LFELI-48100TB [V:01, 2022052301] 29 Info Sarkar Phase3 Project LFELI-48100TB [V:01, 2022052301] 30 Info Sarkar Phase3 Project 5. LFELI-48100TB [V:01, 2022052301] Time Sheet Name Monzur & Tanvir, InGen Ashok Kumar Biswas, SCL Mr. Atiq & Mr. Masud, BCC Mr. Atiq & Mr. Masud, BCC Ashok Kumar Biswas, SCL Monzur & Tanvir, InGen Monzur & Tanvir, InGen Monzur & Tanvir, InGen Mr. Mostofa, SCL Mr. Mostofa, SCL Date 19/05/2022 19/05/2022 19/05/2022 19/05/2022 19/05/2022 19/05/2022 20/05/2022 20/05/2022 20/05/2022 20/05/2022 Time 01:30-02:15PM 01:30-02:30PM 01:30-02:40PM 02:40-04:00PM 02:40-04:00PM 02:40-12:00AM 12:01-02:30PM 02:30-03:30PM 01:50-02:30PM 02:30-03:30PM Description Travelling Travelling Travelling Working Working Working Working Travelling Working Travelling Hours 45 Min 1 Hr 1 Hr 10 Min 1 Hr 20 Min 1 Hr 20 Min 9 Hr 20 Min 14Hr 30 Min 1 Hr 40 Min 1 Hr Note: Both travelling time and working time are included THIS BATTERY BACKUP TEST REPORT ONLY REFLECTED OUR ACTUAL FINDINGS. THE BACKUP TESTING WAS DONE TO THE BEST OF OUR KNOWLEDGE AND ABILITY AND WITH DUE CARE. THE FINDINGS ARE VALID AS FOR TIME PLACE OF INSPECTION. Issued by: Reviewed by: Approved by Title or position: Title or position: Title or position: Date: May 24, 2022 Date: May 24, 2022 END OF REPORT 31 Date: May 24, 2022