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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
GPEV280H240814R1008 307.00 57.17 41.74 GP-PC200 BMS
GPEV280H231019R1037 300.00 57.88 41.50 GP-PC200 BMS
GPEV280H230616R1019 301.00 56.68 41.75 GP-PC200 BMS
GPEV314H241015R1022 324.00 57.88 41.52 GP-JK200 BMS
GPEV280H241014R1012 306.00 57.14 41.40 GP-PC200 BMS
GPRP280L231127R3203 286.00 57.81 40.91 GP-PC200 BMS
GPEV280H240905R1022 308.00 57.99 42.51 GP-RN200 BMS
GPEV280H240616R1021 304.00 57.26 41.19 GP-PC200 BMS
GPEV314H241015R1017 323.00 57.80 43.09 GP-JK200 BMS
GPEV280H230616R1022 301.00 57.52 42.65 GP-PC200 BMS
GPEV314H241114R1011 326.00 57.75 41.77 GP-PC200 BMS
GPEV100H241022R1016 104.00 57.34 43.69 GP-PC100 BMS
GPHC280H240822R1203 295.00 57.63 43.50 GP-JK200 BMS
GPHC280H240506R1015 294.00 56.84 41.43 GP-PC200 BMS
GPEV280H240905R1023 306.00 57.97 42.25 GP-RN200 BMS
GPEV280H240910R1011 306.00 57.70 41.58 GP-PC200 BMS
GPEV280H231220R1002 295.00 58.00 42.77 GP-PC200 BMS
GPRP280L231012R1302 291.00 57.99 40.00 GP-PC200 BMS
GPEV280H231220R1012 296.00 58.00 44.28 GP-PC200 BMS
GPEV280H230625R1005 305.00 57.71 40.62 GP-PC200 BMS
Specification of The Battery

Pack SN:GPEV314H241101R1013
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: 327.00 Ah (16.74 kWh)
Max Charge Voltage: 57.28 V
Min Discharge Voltage: 41.71 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 GPEV314H241101R1013 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 5 04QCB43G39500JE7A0000736 335.53 3,267.0 3,264.8 3,293.5 0.1855 0.1842 0.1733 71.57 2024-10-25
2 9 04QCB43G39500JE7A0000726 335.53 3,266.9 3,264.7 3,293.4 0.1879 0.1880 0.1739 71.57 2024-10-25
3 13 04QCB43G39500JE7A0000739 335.49 3,266.8 3,264.8 3,293.4 0.1883 0.1884 0.1740 71.60 2024-10-25
4 37 04QCB43G39500JE7A0000713 336.01 3,266.5 3,264.2 3,293.4 0.1909 0.1909 0.1776 71.64 2024-10-25
5 74 04QCB43G39500JE7A0000499 335.60 3,266.6 3,264.6 3,293.4 0.1905 0.1915 0.1770 71.58 2024-10-25
6 110 04QCB43G39500JE7A0000083 335.49 3,266.5 3,264.6 3,293.5 0.1902 0.1921 0.1771 71.60 2024-10-25
7 172 04QCB43G39500JE7A0000922 335.53 3,266.7 3,264.3 3,293.5 0.1876 0.1901 0.1776 71.59 2024-10-25
8 190 04QCB43G39500JE7A0000462 335.64 3,266.7 3,264.8 3,293.5 0.1914 0.1908 0.1770 71.60 2024-10-25
9 202 04QCB43G39500JE7A0004874 335.08 3,266.9 3,264.8 3,293.7 0.1887 0.1907 0.1916 71.57 2024-10-24
10 206 04QCB43G39500JE7A0002750 334.97 3,267.1 3,265.3 3,293.8 0.1891 0.1904 0.1788 71.59 2024-10-24
11 209 04QCB43G39500JE7A0004880 335.32 3,267.2 3,265.5 3,293.9 0.1889 0.1887 0.1898 71.60 2024-10-24
12 211 04QCB43G39500JE7A0004879 335.16 3,267.2 3,265.5 3,293.8 0.1872 0.1887 0.1892 71.56 2024-10-24
13 212 04QCB43G39500JE7A0004606 334.86 3,267.0 3,264.8 3,293.6 0.1894 0.1886 0.1909 71.60 2024-10-24
14 215 04QCB43G39500JE7A0005029 335.32 3,266.9 3,264.5 3,293.7 0.1878 0.1875 0.1898 71.60 2024-10-24
15 224 04QCB43G39500JE7A0004903 335.43 3,267.0 3,265.1 3,293.6 0.1883 0.1887 0.1902 71.57 2024-10-24
16 239 04QCB43G39500JE7A0004910 335.23 3,267.2 3,264.9 3,293.6 0.1887 0.1889 0.1846 71.60 2024-10-24
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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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