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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
GPEV280H230705R1024 304.00 57.05 41.48 GP-PC200 BMS
GPHC280H240506R1014 295.00 57.79 41.19 GP-PC200 BMS
GPHC280H240817R1202 295.00 56.48 42.24 GP-PC200 BMS
GPHC280H240705R1402 296.00 57.65 40.90 GP-PC200 BMS
GPRP280L231012R1306 289.00 57.76 40.36 GP-PC200 BMS
GPEV280H230802R1001 296.00 57.42 42.15 GP-PC200 BMS
GPEV314H241031R1006 326.00 57.99 41.03 GP-PC200 BMS
GPRP280L231012R1017 289.00 57.44 40.64 GP-PC200 BMS
GPHC280H240926R1005 292.00 57.26 42.02 GP-RN200 BMS
GPHC280H240506R1013 295.00 57.27 41.03 GP-PC200 BMS
GPEV280H240401R1029 303.00 58.00 42.06 GP-PC200 BMS
GPRP280L231012R1003 293.00 57.54 40.25 GP-PC200 BMS
GPEV314H241105R1016 326.00 57.18 41.88 GP-PC200 BMS
GPEV280H240505R1003 306.00 58.00 41.81 GP-PC200 BMS
GPEV280L230523R1012 286.00 57.02 40.99 GP-PC200 BMS
GPEV280H231019R1022 299.00 57.86 41.73 GP-PC200 BMS
GPEV280H231030R1011 301.00 57.99 40.90 GP-PC200 BMS
GPHC280H240822R1302 295.00 56.98 42.43 GP-PC200 BMS
GPHC280H240910R2903 293.00 57.95 42.41 GP-JK200 BMS
GPEV280H240507R1018 296.00 57.79 43.36 GP-PC200 BMS
Specification of The Battery

Pack SN:GPEV280H241019R1009
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: 298.00 Ah (15.26 kWh)
Max Charge Voltage: 57.54 V
Min Discharge Voltage: 46.02 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 GPEV280H241019R1009 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 28 04QCB76G26903JE6P0008049 312.17 2,797.2 2,792.7 3,297.2 0.1563 0.1573 0.1541 71.70 2024-07-29
2 42 04QCB76G27203JE6F0009334 312.12 2,792.1 2,789.5 3,297.2 0.1577 0.1584 0.1515 71.59 2024-07-29
3 66 04QCB76G47503JE6W0009520 312.11 2,795.5 2,793.9 3,297.7 0.1533 0.1551 0.1542 71.59 2024-07-29
4 68 04QCB76G27103JE6T0010740 312.19 2,810.4 2,808.2 3,297.6 0.1544 0.1560 0.1516 72.21 2024-07-29
5 87 04QCB76G45303JE6T0002116 312.13 2,797.0 2,794.3 3,297.6 0.1567 0.1561 0.1548 71.65 2024-07-29
6 88 04QCB76G50303JE6M0006724 312.20 2,804.2 2,805.2 3,297.8 0.1540 0.1563 0.1543 71.75 2024-07-29
7 130 04QCB76G45303JE6V0007480 312.13 2,800.8 2,801.2 3,297.8 0.1539 0.1558 0.1526 71.54 2024-07-29
8 144 04QCB76G10503JE4B0009617 312.11 2,793.9 2,787.6 3,296.4 0.1531 0.1548 0.1497 71.45 2024-06-27
9 176 04QCB76G27303JE6G0009972 312.13 2,802.2 2,800.0 3,297.3 0.1565 0.1581 0.1516 72.15 2024-07-29
10 201 04QCB76G27503JE6J0006124 312.21 2,796.9 2,795.2 3,297.3 0.1561 0.1577 0.1544 71.56 2024-07-29
11 204 04QCB76G40003JE6L0006072 312.09 2,793.6 2,789.9 3,297.2 0.1546 0.1566 0.1542 71.58 2024-07-28
12 225 04QCB76G45303JE6V0007109 312.10 2,793.8 2,794.8 3,298.1 0.1568 0.1570 0.1542 71.59 2024-07-29
13 244 04QCB76G47503JE6W0008641 312.14 2,798.6 2,797.8 3,297.9 0.1543 0.1558 0.1533 71.60 2024-07-29
14 245 04QCB76G47503JE6W0008638 312.11 2,799.6 2,798.6 3,298.0 0.1550 0.1552 0.1524 71.57 2024-07-29
15 251 04QCB76G50303JE6M0009898 312.22 2,789.3 2,786.4 3,297.6 0.1541 0.1556 0.1523 71.63 2024-07-29
16 254 04QCB76G26703JE6M0003763 312.08 2,792.8 2,790.4 3,297.2 0.1581 0.1583 0.1540 71.57 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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