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Battery Pack Information Lookup

Get Data of Your Gobel Power Battery
Decode
HSEV Example: GPEV280H230705R1003
LSEV Example: GPEV280L230523R2401
More Examples
SN Capacity (Ah) Max Charge Voltage (V) Min Discharge Voltage (V) BMS
GPEV280L230602R1007 300.00 57.01 43.13 GP-PC200 BMS
GPEV280L230602R2008 286.00 57.01 40.54 GP-PC200 BMS
GPEV280H230625R1017 306.00 57.71 40.47 GP-PC200 BMS
GPEV280H230616R1027 307.00 57.06 40.57 GP-PC200 BMS
GPEV280L230801R3303 288.00 56.76 42.10 GP-PC200 BMS
GPEV280H230625R1036 307.00 57.53 40.40 GP-PC200 BMS
GPEV280H230625R1005 305.00 57.71 40.62 GP-PC200 BMS
GPEV280L230711R3202 301.00 56.83 42.41 GP-RN150 BMS
GPEV280L230801R1502 285.00 57.31 42.54 GP-RN150 BMS
GPEV280H230616R1015 303.00 57.54 41.49 GP-PC200 BMS
GPEV280H230705R1019 306.00 57.40 40.52 GP-PC200 BMS
GPEV280H230705R1027 304.00 56.66 40.55 GP-PC200 BMS
GPEV280L230602R1002 300.00 57.02 43.43 GP-PC200 BMS
GPEV280L230602R1606 302.00 56.76 40.91 GP-PC200 BMS
GPEV280H230625R1002 304.00 57.40 42.17 GP-PC200 BMS
GPEV280L230523R2404 306.00 56.83 41.33 GP-PC200 BMS
GPEV280L230913R2922 287.00 56.74 41.45 GP-RN150 BMS
GPEV280H230625R1026 306.00 57.38 40.59 GP-PC200 BMS
GPEV280L230602R2006 301.00 56.02 41.35 GP-PC200 BMS
GPEV280L230801R2216 288.00 57.19 40.36 GP-PC200 BMS
Sample Data From a Battery

Pack SN:GPEV280H230705R1003
Pack Type: Low Voltage LiFePO4 Battery
Pack Grade: Premium
BMS Type: GP-PC200 BMS
Balancer Type: Heltec 5A Active Balancer
Heater: Without Heater
Cell Type: EVE LF280K
Cell Grade: HSEV
Number of Cell: 16
Pack Test Result

Full Capacity: 305.00 Ah
Max Charge Voltage: 57.97 V
Min Discharge Voltage: 41.11 V
Charge Test Method
  • 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 Method
  • Discharging at a constant current of 100A.
  • Document the minimum discharging voltage when the voltage of a single cell reaches 2.5V.
Cells Information

Cell Id QR Capacity (Ah) OCV1 (mV) OCV2 (mV) OCV3 (mV) RI1 (mΩ) RI2 (mΩ) RI3 (mΩ) Thick (mm) Test Date
1 4 04QCB76G41203JD5H0008396 313.51 2,802.3 2,796.1 3,297.4 0.1550 0.1535 0.1572 71.57 2023-06-08
2 43 04QCB76G59403JD5H0001533 313.60 2,797.7 2,790.5 3,297.8 0.1542 0.1562 0.1590 71.54 2023-06-08
3 48 04QCB76G41203JD5G0001421 313.53 2,802.2 2,792.8 3,297.2 0.1546 0.1552 0.1539 71.44 2023-06-08
4 90 04QCB76G40803JD5F0006446 313.62 2,799.9 2,789.6 3,297.5 0.1499 0.1514 0.1537 71.61 2023-06-08
5 113 04QCB76G55503JD5F0000112 313.62 2,804.2 2,795.1 3,297.2 0.1567 0.1569 0.1573 71.60 2023-06-08
6 121 04QCB76G40803JD5F0007938 313.53 2,799.0 2,789.6 3,297.4 0.1550 0.1535 0.1536 71.63 2023-06-08
7 122 04QCB76G55703JD5G0002067 313.61 2,803.6 2,797.7 3,297.3 0.1541 0.1579 0.1581 71.48 2023-06-08
8 193 04QCB76G42103JD5J0001358 313.63 2,805.3 2,800.5 3,297.4 0.1523 0.1545 0.1560 71.48 2023-06-08
9 226 04QCB76G59403JD5H0002425 313.54 2,804.5 2,796.7 3,297.3 0.1559 0.1580 0.1598 71.60 2023-06-08
10 268 04QCB76G41203JD5H0007894 313.63 2,801.1 2,795.0 3,297.3 0.1544 0.1542 0.1582 71.59 2023-06-08
11 286 04QCB76G41103JD5F0000897 313.63 2,798.3 2,793.7 3,297.4 0.1523 0.1522 0.1527 71.68 2023-06-08
12 293 04QCB76G41203JD5H0010311 313.50 2,804.2 2,799.1 3,297.2 0.1511 0.1529 0.1565 71.56 2023-06-08
13 330 04QCB76G55503JD5G0002274 313.58 2,799.3 2,790.9 3,297.3 0.1541 0.1545 0.1552 71.49 2023-06-08
14 381 04QCB76G59403JD5H0001748 313.66 2,801.5 2,796.7 3,297.4 0.1542 0.1568 0.1591 71.75 2023-06-08
15 385 04QCB76G64403JD5F0000342 313.65 2,800.5 2,794.5 3,297.2 0.1527 0.1546 0.1547 71.61 2023-06-08
16 408 04QCB76G52203JD5F0003879 313.51 2,799.4 2,789.4 3,297.4 0.1563 0.1548 0.1583 71.53 2023-06-08
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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