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Battery Pack Information Lookup

Get Data of Your Gobel Power Battery
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GP-SR1-PC200 Premium Example: GPEV280H240520R1006
GP-SR1-PC200 Standard Example: GPHC280H240401R1003
GP-SR1-PC200 Standard Example: GPEV280H240927R1001
GP-SR1-PC200 Basic Example: GPCN280L240809R1001
GP-SR1-PC314 Premium Example: GPEV314H240921R1012
GP-SR3-PC100 Example: GPEV100H240930R1003
GP-LA12-280AH Premium Example: GDEV280H240307R1008
GP-LA12-280AH Standard Example: GDHC280H240312R1401
More Examples
SN Capacity (Ah) Max Charge Voltage (V) Min Discharge Voltage (V) BMS
GPEV280H230705R1003 305.00 57.97 41.11 GP-PC200 BMS
GPEV280H240611R1006 304.00 57.62 41.93 GP-PC200 BMS
GPEV280H230705R1015 305.00 57.04 40.72 GP-PC200 BMS
GPEV280H240923R1012 306.00 57.04 42.04 GP-PC200 BMS
GPEV280H240507R1008 301.00 58.00 41.74 GP-PC200 BMS
GPEV280H240112R1012 299.00 58.00 42.15 GP-PC200 BMS
GPEV280H230705R1002 304.00 57.98 41.32 GP-PC200 BMS
GPEV280L230913R2915 283.00 57.09 41.61 GP-PC200 BMS
GPHC280H240817R1204 295.00 56.94 42.63 GP-PC200 BMS
GPEV280H240124R1014 301.00 57.98 43.43 GP-RN200 BMS
GPEV280H241111R1009 304.00 57.55 42.26 GP-PC200 BMS
GPEV280H230705R1001 302.00 56.62 41.25 GP-PC200 BMS
GPEV280H240831R1007 306.00 57.98 42.66 GP-RN200 BMS
GPHC280H240506R2902 294.00 57.26 40.68 GP-PC200 BMS
GPEV280H240401R1026 304.00 58.00 43.74 GP-RN200 BMS
GPRP280L231127R3201 284.00 57.41 42.26 GP-PC200 BMS
GPEV280L230523R1010 286.00 56.68 41.02 GP-PC200 BMS
GPEV280H240814R1006 307.00 57.76 41.06 GP-PC200 BMS
GPEV314H241114R1015 326.00 57.77 42.12 GP-PC200 BMS
GPHC280H240401R1202 295.00 56.96 40.50 GP-PC200 BMS
Specification of The Battery

Pack SN:GPEV314H241105R1014
Pack Type: 51.2V LiFePO4 Battery
Pack Grade: Premium
BMS Type: GP-PC200 BMS
Balancer: 4A Bluetooth Active Balancer
Heater: Without Heater
Cell Type: EVE 314Ah
Cell Grade: HSEV
Cells Connection: 16S1P
Pack Test Result

Full Capacity: 326.00 Ah (16.69 kWh)
Max Charge Voltage: 57.99 V
Min Discharge Voltage: 42.18 V
Charge Test Steps
  • Charging at a constant current of 100A, with a maximum charging voltage of 55.5V.
  • Charging at a constant voltage of 55.5V, with a cutoff current of 40A.
  • Charging at a constant current of 40A, with a maximum charging voltage of 58V.
  • Document the maximum charging voltage when the voltage of a single cell reaches 3.65V.
  • * Tested without deliberated active balance procedure.
Discharge Test Steps
  • Discharging at a constant current of 100A.
  • Document the minimum discharging voltage when the voltage of a single cell reaches 2.5V.
  • * Please be aware that the charge/discharge curve and capacity of batteries can vary with changing temperatures throughout the seasons. In winter, tested capacity will be relatively lower.
Charge/Discharge Curve
(Based on GPEV314H241105R1014 Test Data)

Cells Information

Cell Id QR Capacity (Ah) OCV1 (mV) OCV2 (mV) OCV3 (mV) RI1 (mΩ) RI2 (mΩ) RI3 (mΩ) Thick (mm) Test Date
1 20 04QCB43G39500JE7A0002514 334.92 3,267.0 3,264.7 3,293.7 0.1834 0.1861 0.1741 71.60 2024-10-24
2 89 04QCB43G39500JE7A0002492 334.97 3,267.2 3,264.7 3,293.5 0.1884 0.1881 0.1795 71.42 2024-10-24
3 102 04QCB43G39500JE7A0001730 334.92 3,266.6 3,264.3 3,293.4 0.1909 0.1912 0.1825 71.39 2024-10-24
4 106 04QCB43G39500JE7A0001731 334.95 3,266.5 3,264.1 3,293.2 0.1921 0.1917 0.1843 71.45 2024-10-24
5 109 04QCB43G39500JE7A0001737 334.97 3,266.8 3,264.4 3,293.5 0.1902 0.1889 0.1808 71.61 2024-10-24
6 123 04QCB43G39500JE7A0004977 334.92 3,267.2 3,265.4 3,293.9 0.1881 0.1892 0.1784 71.55 2024-10-24
7 129 04QCB43G39500JE7A0003362 334.97 3,266.8 3,264.6 3,293.9 0.1877 0.1894 0.1746 71.60 2024-10-25
8 135 04QCB43G39500JE7A0004515 334.99 3,267.3 3,265.1 3,294.0 0.1863 0.1878 0.1725 71.60 2024-10-25
9 166 04QCB43G39500JE7A0003052 334.97 3,267.1 3,265.0 3,293.8 0.1864 0.1890 0.1745 71.43 2024-10-24
10 186 04QCB43G39500JE7A0005041 334.97 3,266.7 3,264.5 3,293.7 0.1890 0.1905 0.1801 71.60 2024-10-24
11 210 04QCB43G39500JE7A0004697 334.92 3,267.2 3,265.3 3,293.7 0.1825 0.1859 0.1776 71.61 2024-10-24
12 216 04QCB43G39500JE7A0003805 334.97 3,267.0 3,264.9 3,293.6 0.1864 0.1861 0.1788 71.59 2024-10-24
13 233 04QCB43G39500JE7A0002942 334.97 3,267.0 3,264.7 3,293.8 0.1895 0.1878 0.1786 71.59 2024-10-25
14 242 04QCB43G39500JE7A0003533 334.92 3,266.9 3,264.8 3,293.8 0.1876 0.1886 0.1763 71.60 2024-10-25
15 248 04QCB43G39500JE7A0004733 334.95 3,266.9 3,264.9 3,294.0 0.1865 0.1865 0.1723 71.61 2024-10-25
16 264 04QCB43G39500JE7A0003731 334.95 3,267.2 3,265.2 3,293.9 0.1897 0.1888 0.1770 71.60 2024-10-25
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Why Cells Consistency is Important?

Cell consistency in a LiFePO4 (Lithium Iron Phosphate) battery, or indeed any type of battery, refers to the uniformity of the performance and characteristics of the individual cells within the battery.

When a battery is made up of multiple cells, it's important that each cell has the same capacity, internal resistance, self-discharge rate, and other performance characteristics. This is because the overall performance of the battery is only as good as its weakest cell. If one cell has a lower capacity or higher internal resistance, it can reduce the performance of the entire battery, and can even lead to premature failure of the battery.

In a series configuration, the same current flows through all cells. If one cell has a lower capacity, it will discharge faster than the others. Once this cell is fully discharged, the overall battery voltage will drop significantly, even though the other cells still have charge left. This can lead to underutilization of the overall battery capacity.

In a parallel configuration, all cells share the same voltage. If one cell has a higher self-discharge rate, it will drain the other cells to balance its voltage, leading to a faster overall discharge rate.

Moreover, inconsistencies between cells can lead to issues with balancing. Balancing is the process of ensuring all cells in a battery are at the same state of charge. This is typically done by either transferring charge from higher charged cells to lower charged ones (active balancing), or by dissipating excess charge in the higher charged cells (passive balancing). If the cells are inconsistent, it can make balancing more difficult and less effective.

Therefore, cell consistency is crucial for maximizing the performance, longevity, and safety of a battery. This is why Gobel Power puts a lot of effort into cell selection and sorting, to ensure that only cells with similar characteristics are used together in a battery.

Static parameters such as capacities, internal resistances, and voltage levels, though informative, may not provide a comprehensive picture of cell consistency in a LiFePO4 (Lithium Iron Phosphate) battery. A more practical and straightforward method to assess cell consistency involves monitoring the maximum charge voltage when a single cell reaches 3.65V. This is based on the understanding that if the cells exhibit good consistency, the voltage variation across them will be minimal, resulting in a higher overall maximum charge voltage. Therefore, observing the maximum charge voltage when one cell attains 3.65V can serve as a reliable indicator of the battery's cell consistency.

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