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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
GPEV314H241010R1001 322.00 57.49 42.44 GP-PC200 BMS
GPEV280H240507R1014 301.00 58.00 43.14 GP-PC200 BMS
GPHC280H240506R1017 293.00 57.24 41.49 GP-PC200 BMS
GPEV280H241019R1018 303.00 57.08 41.92 GP-PC200 BMS
GPHC280H240615R2902 295.00 56.41 40.71 GP-PC200 BMS
GPHC280H240710R1503 294.00 57.47 41.12 GP-PC200 BMS
GPEV280H240401R1022 305.00 57.99 43.97 GP-RN200 BMS
GPEV280H240507R1005 301.00 58.00 41.11 GP-PC200 BMS
GPHC280H240613R1001 294.00 56.89 41.23 GP-PC200 BMS
GPEV280H241014R1001 308.00 57.07 41.12 GP-PC200 BMS
GPEV280H230910R1002 302.78 57.86 41.70 GP-PC200 BMS
GPEV100H240930R1009 105.00 57.48 42.11 GP-PC100 BMS
GPEV280L230602R1010 299.00 56.59 39.93 GP-PC200 BMS
GPEV280H240710R1017 302.00 58.00 40.63 GP-PC200 BMS
GPEV280H240314R1003 303.00 57.99 43.12 GP-RN200 BMS
GPHC280H240604R1201 294.00 56.40 41.21 GP-PC200 BMS
GPEV100H240930R1011 103.00 57.99 43.08 GP-PC100 BMS
GPEV280H230625R1030 306.00 57.35 41.06 GP-PC200 BMS
GPEV280H240520R1019 303.00 58.00 41.81 GP-PC200 BMS
GPEV314H240921R1013 326.00 57.97 41.11 GP-PC200 BMS
Specification of The Battery

Pack SN:GPEV280H240926R1013
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 LF280K
Cell Grade: HSEV
Cells Connection: 16S1P
Pack Test Result

Full Capacity: 307.00 Ah (15.72 kWh)
Max Charge Voltage: 57.38 V
Min Discharge Voltage: 41.29 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 GPEV280H240926R1013 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 13 04QCB76G27003JE6S0011367 317.00 2,790.8 2,787.7 3,297.5 0.1553 0.1568 0.1529 72.39 2024-07-29
2 32 04QCB76G27203JE6T0003099 316.54 2,798.5 2,792.7 3,297.8 0.1562 0.1571 0.1506 71.68 2024-07-29
3 37 04QCB76G26703JE6M0005148 316.46 2,800.3 2,797.7 3,298.0 0.1553 0.1537 0.1531 72.95 2024-07-29
4 44 04QCB76G27203JE6F0009703 316.29 2,793.2 2,789.8 3,297.1 0.1560 0.1586 0.1546 71.73 2024-07-28
5 63 04QCB76G27203JE6T0004173 316.32 2,796.9 2,790.5 3,297.2 0.1551 0.1573 0.1537 72.25 2024-07-29
6 75 04QCB76G26503JE6X0006478 316.77 2,798.2 2,793.7 3,297.5 0.1538 0.1556 0.1516 72.39 2024-07-29
7 81 04QCB76G27503JE6H0001401 316.28 2,788.7 2,785.1 3,297.4 0.1588 0.1596 0.1504 72.17 2024-07-28
8 88 04QCB76G27003JE6S0010675 316.72 2,791.6 2,788.2 3,297.4 0.1576 0.1569 0.1533 72.75 2024-07-29
9 105 04QCB76G27503JE6H0001666 316.31 2,792.3 2,789.1 3,297.3 0.1545 0.1560 0.1522 72.44 2024-07-29
10 114 04QCB76G27703JE6L0002350 316.46 2,789.3 2,782.9 3,297.1 0.1535 0.1553 0.1565 72.36 2024-07-29
11 144 04QCB76G26803JE6N0007130 316.44 2,792.0 2,786.8 3,297.6 0.1577 0.1571 0.1513 72.40 2024-07-29
12 148 04QCB76G27603JE6K0006887 316.53 2,795.3 2,788.8 3,297.4 0.1556 0.1572 0.1540 71.91 2024-07-29
13 160 04QCB76G27703JE6L0002034 316.36 2,792.7 2,790.9 3,297.5 0.1584 0.1583 0.1531 71.63 2024-07-28
14 167 04QCB76G27003JE6R0007700 316.76 2,791.1 2,784.8 3,297.1 0.1566 0.1579 0.1548 72.22 2024-07-28
15 190 04QCB76G27403JE6H0010571 316.35 2,795.9 2,796.4 3,296.8 0.1564 0.1582 0.1530 72.26 2024-07-29
16 192 04QCB76G27203JE6F0009191 316.29 2,785.9 2,780.6 3,297.5 0.1556 0.1558 0.1538 71.90 2024-07-29
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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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