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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
GPEV280H240520R1023 300.00 57.99 43.82 GP-PC200 BMS
GPHC280H240926R2901 292.00 57.76 42.94 GP-RN200 BMS
GPHC280H240605R1202 294.00 57.35 41.56 GP-PC200 BMS
GPHC280H240615R1004 293.00 56.84 42.49 GP-PC200 BMS
GPEV280H241014R1007 306.00 57.55 41.95 GP-PC200 BMS
GPHC280H240910R1001 289.00 56.73 43.05 GP-JK200 BMS
GPEV280H240105R1033 301.00 58.00 43.15 GP-PC200 BMS
GPEV280H230616R1017 300.00 57.35 42.81 GP-PC200 BMS
GPHC280H240515R1001 294.00 56.95 41.18 GP-PC200 BMS
GPEV280H230625R1030 306.00 57.35 41.06 GP-PC200 BMS
GPHC280H240422R1003 296.00 56.98 40.45 GP-PC200 BMS
GPEV280H240314R1007 300.00 58.00 44.44 GP-RN200 BMS
GPEV280H230625R1020 306.00 57.02 40.99 GP-PC200 BMS
GPEV280L230801R2406 290.00 57.54 40.47 GP-PC200 BMS
GPEV280H241014R1003 305.00 57.36 43.63 GP-PC200 BMS
GPEV280H240401R1020 307.00 57.96 42.50 GP-RN200 BMS
GPHC280H240705R1601 294.00 56.36 40.25 GP-PC200 BMS
GPEV280L230523R2401 302.00 56.79 41.94 GP-PC200 BMS
GPEV280H240115R1007 301.00 58.00 42.87 GP-PC200 BMS
GPEV280H240620R1048 306.00 56.96 41.02 GP-PC200 BMS
Specification of The Battery

Pack SN:GPEV280H241019R1003
Pack Type: 51.2V LiFePO4 Battery
Pack Grade: Standard
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: 299.00 Ah (15.31 kWh)
Max Charge Voltage: 57.84 V
Min Discharge Voltage: 43.87 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 GPEV280H241019R1003 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 10 04QCB76G41003JE6S0008247 311.24 2,795.1 2,793.5 3,297.7 0.1541 0.1559 0.1541 71.57 2024-07-29
2 30 04QCB76G27103JE6T0010674 311.23 2,810.4 2,808.0 3,297.6 0.1551 0.1562 0.1510 71.92 2024-07-29
3 57 04QCB76G41003JE6S0008233 311.28 2,796.6 2,795.2 3,297.7 0.1531 0.1562 0.1532 71.68 2024-07-29
4 96 04QCB76G51303JE6T0010456 311.07 2,784.1 2,781.0 3,297.8 0.1523 0.1538 0.1519 71.61 2024-07-29
5 128 04QCB76G40403JE6N0007089 311.18 2,795.6 2,795.0 3,297.7 0.1570 0.1575 0.1555 71.56 2024-07-28
6 133 04QCB76G21203JE4C0004913 311.12 2,797.0 2,791.9 3,296.2 0.1575 0.1577 0.1535 71.49 2024-06-27
7 135 04QCB76G10603JE4C0004078 311.27 2,797.2 2,792.1 3,296.3 0.1575 0.1581 0.1541 71.46 2024-06-27
8 153 04QCB76G21203JE4C0002512 311.28 2,796.2 2,791.4 3,296.3 0.1559 0.1576 0.1535 71.50 2024-06-27
9 155 04QCB76G21203JE4C0002608 310.96 2,796.5 2,791.0 3,296.2 0.1537 0.1559 0.1529 71.47 2024-06-27
10 158 04QCB76G41003JE6S0008168 311.15 2,798.3 2,796.7 3,297.7 0.1572 0.1579 0.1546 71.67 2024-07-29
11 168 04QCB76G51303JE6T0005580 310.95 2,794.0 2,789.8 3,297.6 0.1542 0.1557 0.1530 72.17 2024-07-29
12 185 04QCB76G41203JE6T0009730 311.04 2,791.5 2,787.6 3,297.5 0.1559 0.1559 0.1523 71.55 2024-07-28
13 218 04QCB76G47503JE6V0002786 311.29 2,798.4 2,795.7 3,297.7 0.1563 0.1564 0.1544 71.71 2024-07-29
14 273 04QCB76G21203JE4C0003583 311.15 2,796.8 2,791.3 3,296.1 0.1557 0.1570 0.1533 71.52 2024-06-27
15 286 04QCB76G41203JE6T0006285 311.02 2,786.6 2,782.7 3,297.6 0.1563 0.1560 0.1509 71.56 2024-07-29
16 296 04QCB76G10603JE4C0003730 311.17 2,794.4 2,788.5 3,296.4 0.1553 0.1563 0.1518 71.45 2024-06-27
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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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