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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
GPEV280H240620R1033 305.00 57.59 40.72 GP-PC200 BMS
GPHC280H241010R1002 293.00 57.41 41.41 GP-PC200 BMS
GPHC280H240515R2903 290.00 56.74 44.14 GP-PC200 BMS
GPEV280L230913R2911 284.00 57.17 41.73 GP-RN150 BMS
GPEV280H240701R1001 302.00 57.16 41.70 GP-PC200 BMS
GPEV280H240314R1018 305.00 57.99 42.01 GP-PC200 BMS
GPEV280H240105R1018 298.00 58.00 42.70 GP-PC200 BMS
GPEV280H240507R1019 299.00 57.99 44.06 GP-PC200 BMS
GPHC280H241010R1401 293.00 57.33 41.76 GP-PC200 BMS
GPEV280H230625R1006 305.00 57.58 40.63 GP-PC200 BMS
GPRP280L231107R3201 284.00 56.26 42.91 GP-PC200 BMS
GPHC280H240710R1003 293.00 56.96 41.71 GP-PC200 BMS
GPEV280L230913R2916 289.00 57.09 41.64 GP-PC200 BMS
GPHC280H240418R1004 295.00 57.90 41.87 GP-JK200 BMS
GPEV280H241019R1010 299.00 56.95 45.01 GP-PC200 BMS
GPRP280L231207R3504 284.00 57.57 41.12 GP-PC200 BMS
GPEV280H240611R1005 304.00 57.99 40.99 GP-PC200 BMS
GPHC280H240321R1206 295.00 57.30 40.78 GP-PC200 BMS
GPEV280H240507R1008 301.00 58.00 41.74 GP-PC200 BMS
GPEV280L230602R1606 302.00 56.76 40.91 GP-PC200 BMS
Specification of The Battery

Pack SN:GPEV280H240910R1012
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: 57.99 V
Min Discharge Voltage: 41.57 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 GPEV280H240910R1012 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 26 04QCB76G50903JE6R0000760 315.21 2,787.6 2,783.5 3,297.4 0.1519 0.1542 0.1517 71.91 2024-07-29
2 27 04QCB76G26803JE6N0000648 315.10 2,791.9 2,789.6 3,297.3 0.1557 0.1565 0.1502 72.53 2024-07-28
3 36 04QCB76G27403JE6H0008335 315.20 2,787.9 2,784.0 3,297.2 0.1571 0.1587 0.1547 71.86 2024-07-29
4 57 04QCB76G27203JE6V0005980 315.10 2,802.1 2,800.3 3,297.6 0.1535 0.1537 0.1496 71.63 2024-07-29
5 61 04QCB76G50303JE6M0010194 315.10 2,788.1 2,785.1 3,297.5 0.1571 0.1578 0.1553 71.97 2024-07-29
6 70 04QCB76G27203JE6E0006362 315.10 2,800.4 2,797.0 3,297.3 0.1550 0.1579 0.1558 71.71 2024-07-29
7 82 04QCB76G27503JE6J0011994 315.19 2,800.4 2,796.1 3,297.4 0.1551 0.1569 0.1561 71.70 2024-07-29
8 137 04QCB76G26703JE6N0011098 315.13 2,790.2 2,786.5 3,297.5 0.1564 0.1580 0.1548 72.38 2024-07-29
9 142 04QCB76G27403JE6H0008062 315.22 2,789.3 2,786.1 3,297.3 0.1561 0.1581 0.1548 72.38 2024-07-29
10 143 04QCB76G27203JE6F0008495 315.13 2,799.0 2,795.9 3,297.1 0.1544 0.1557 0.1528 72.32 2024-07-29
11 195 04QCB76G26803JE6N0009369 315.22 2,791.6 2,786.8 3,297.5 0.1579 0.1591 0.1546 71.67 2024-07-29
12 200 04QCB76G27303JE6F0000038 315.17 2,798.8 2,796.3 3,297.2 0.1573 0.1570 0.1512 72.23 2024-07-29
13 202 04QCB76G55403JE6V0003071 315.10 2,794.3 2,791.4 3,297.5 0.1538 0.1546 0.1543 71.56 2024-07-29
14 220 04QCB76G40803JE6P0000775 315.23 2,797.8 2,798.0 3,297.6 0.1545 0.1568 0.1537 71.78 2024-07-29
15 224 04QCB76G40803JE6R0006297 315.16 2,800.4 2,797.2 3,297.5 0.1557 0.1547 0.1551 72.13 2024-07-29
16 236 04QCB76G27503JE6H0000505 315.10 2,789.9 2,785.9 3,297.4 0.1554 0.1563 0.1553 71.82 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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