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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
GPEV280H240520R1016 300.00 57.98 42.00 GP-PC200 BMS
GPEV280H240918R1004 305.00 57.12 42.13 GP-PC200 BMS
GPHC280H240615R1007 294.00 57.08 42.21 GP-PC200 BMS
GPEV280L230602R2006 301.00 56.02 41.35 GP-PC200 BMS
GPEV280H231019R1009 304.00 58.00 41.26 GP-PC200 BMS
GPEV280H240620R1014 303.00 57.07 41.12 GP-PC200 BMS
GPEV280L230801R2401 288.00 56.84 40.37 GP-PC200 BMS
GPEV280H240507R1004 300.00 58.00 42.41 GP-PC200 BMS
GPRP280L231207R2702 284.00 57.28 42.48 GP-PC200 BMS
GPEV280L230523R2403 305.00 56.77 41.37 GP-PC200 BMS
GPEV280H241019R1019 303.00 57.15 42.39 GP-PC200 BMS
GPEV280H240401R1021 305.00 57.99 43.99 GP-RN200 BMS
GPEV280L230602R2001 302.00 57.02 40.62 GP-PC200 BMS
GPEV280L230602R2201 301.00 56.79 41.26 GP-PC200 BMS
GPHC280H240910R2902 284.00 56.28 46.31 GP-PC200 BMS
GPEV280H240507R1010 301.00 57.99 40.76 GP-PC200 BMS
GPEV280H231204R1005 305.00 58.00 41.56 GP-PC200 BMS
GPEV280L230801R1502 285.00 57.31 42.54 GP-RN150 BMS
GPEV280H240505R1008 308.00 57.99 41.63 GP-PC200 BMS
GPEV314H241015R1016 324.00 57.95 41.81 GP-JK200 BMS
Specification of The Battery

Pack SN:GPEV280H241026R1004
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: 305.00 Ah (15.62 kWh)
Max Charge Voltage: 57.67 V
Min Discharge Voltage: 42.74 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 GPEV280H241026R1004 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 59 04QCB76G27703JE6L0001683 315.08 2,799.6 2,794.7 3,297.0 0.1535 0.1546 0.1543 71.85 2024-07-29
2 64 04QCB76G27203JE6V0008875 314.45 2,788.5 2,784.9 3,297.5 0.1571 0.1575 0.1546 72.07 2024-07-29
3 66 04QCB76G26703JE6M0002401 314.97 2,794.1 2,792.0 3,297.4 0.1586 0.1580 0.1552 72.66 2024-07-29
4 84 04QCB76G27703JE6L0007472 314.12 2,791.9 2,785.8 3,297.3 0.1568 0.1575 0.1521 72.23 2024-07-29
5 85 04QCB76G27703JE6L0005338 313.32 2,798.3 2,796.6 3,297.3 0.1541 0.1562 0.1538 72.60 2024-07-29
6 87 04QCB76G27203JE6V0007444 314.64 2,792.6 2,786.6 3,297.1 0.1560 0.1576 0.1545 71.71 2024-07-29
7 88 04QCB76G27403JE6G0000473 313.59 2,789.9 2,786.6 3,297.1 0.1552 0.1556 0.1525 72.27 2024-07-29
8 95 04QCB76G27303JE6G0011018 313.94 2,793.9 2,792.1 3,297.3 0.1571 0.1592 0.1533 72.10 2024-07-29
9 100 04QCB76G26703JE720006329 314.67 2,788.8 2,783.7 3,297.4 0.1576 0.1569 0.1550 72.32 2024-07-29
10 133 04QCB76G27203JE6V0010083 315.27 2,796.9 2,790.0 3,297.5 0.1565 0.1568 0.1510 71.96 2024-07-29
11 141 04QCB76G27203JE6T0004798 314.48 2,791.8 2,786.6 3,297.4 0.1560 0.1560 0.1519 71.85 2024-07-29
12 171 04QCB76G27303JE6G0005060 314.27 2,794.8 2,792.0 3,297.1 0.1539 0.1540 0.1495 72.15 2024-07-29
13 173 04QCB76G45303JE6T0003134 312.47 2,799.3 2,796.5 3,297.8 0.1570 0.1570 0.1543 71.58 2024-07-29
14 181 04QCB76G27303JE6G0008222 314.27 2,791.8 2,789.0 3,297.3 0.1580 0.1597 0.1550 71.69 2024-07-29
15 188 04QCB76G27703JE6L0002056 315.49 2,800.4 2,799.8 3,297.3 0.1583 0.1590 0.1508 72.11 2024-07-29
16 189 04QCB76G27303JE6G0005565 314.49 2,799.8 2,800.8 3,297.1 0.1565 0.1581 0.1543 72.69 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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