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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
GPEV280H240401R1004 298.00 57.99 44.32 GP-RN200 BMS
GPEV280H240611R1003 308.00 57.99 41.26 GP-PC200 BMS
GPEV280H230802R1006 304.00 57.98 41.24 GP-PC200 BMS
GPEV314H241114R1001 323.00 57.20 41.66 GP-PC200 BMS
GPHC280H240506R1205 294.00 57.10 41.63 GP-PC200 BMS
GPEV314H241101R1009 326.00 57.23 41.62 GP-PC200 BMS
GPEV280H240507R1022 302.00 57.80 41.06 GP-PC200 BMS
GPEV280H230625R1034 308.00 57.00 40.30 GP-PC200 BMS
GPHC280H240628R1001 292.00 56.18 41.82 GP-PC200 BMS
GPHC280H240729R1003 294.00 57.59 41.06 GP-PC200 BMS
GPEV280H231019R1002 300.00 57.86 41.89 GP-PC200 BMS
GPEV280H240729R1005 303.00 58.00 41.67 GP-PC200 BMS
GPEV280H240323R1012 302.00 57.99 41.92 GP-PC200 BMS
GPEV280H240401R1017 301.00 57.99 44.56 GP-RN200 BMS
GPEV314H241101R1003 325.00 57.17 41.13 GP-PC200 BMS
GPHC280H240615R1002 293.00 56.19 41.39 GP-PC200 BMS
GPEV280L230711R3202 301.00 56.83 42.41 GP-RN150 BMS
GPEV280H240620R1002 302.00 57.99 42.37 GP-PC200 BMS
GPEV280H240910R1002 307.00 57.98 42.45 GP-RN200 BMS
GPEV280H231019R1029 291.00 56.12 45.18 GP-PC200 BMS
Specification of The Battery

Pack SN:GPEV280H241019R1014
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: 298.00 Ah (15.26 kWh)
Max Charge Voltage: 57.10 V
Min Discharge Voltage: 45.70 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 GPEV280H241019R1014 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 31 04QCB76G27403JE6H0008892 312.73 2,797.3 2,794.7 3,297.3 0.1563 0.1564 0.1548 72.59 2024-07-29
2 35 04QCB76G55403JE6V0006736 312.68 2,793.2 2,790.0 3,297.5 0.1536 0.1561 0.1518 71.79 2024-07-29
3 37 04QCB76G27103JE6T0010741 312.65 2,809.7 2,807.4 3,297.6 0.1564 0.1579 0.1516 71.59 2024-07-29
4 65 04QCB76G26903JE6P0008176 312.72 2,796.6 2,792.5 3,297.2 0.1571 0.1583 0.1545 71.59 2024-07-29
5 67 04QCB76G27403JE6H0007972 312.71 2,793.9 2,788.9 3,297.2 0.1570 0.1570 0.1538 71.87 2024-07-29
6 105 04QCB76G27203JE6F0009715 312.68 2,788.9 2,784.8 3,297.0 0.1584 0.1596 0.1533 72.28 2024-07-29
7 154 04QCB76G21203JE4C0004374 312.71 2,797.3 2,790.7 3,296.1 0.1563 0.1570 0.1537 71.45 2024-06-27
8 180 04QCB76G26703JE6M0008314 312.65 2,794.6 2,789.9 3,297.0 0.1579 0.1600 0.1537 71.61 2024-07-29
9 191 04QCB76G27403JE6G0001468 312.68 2,789.7 2,785.4 3,297.2 0.1552 0.1565 0.1549 71.94 2024-07-29
10 199 04QCB76G41003JE6S0008193 312.67 2,796.9 2,794.9 3,297.6 0.1529 0.1564 0.1538 71.61 2024-07-29
11 227 04QCB76G45303JE6T0001462 312.66 2,796.4 2,792.8 3,297.5 0.1561 0.1565 0.1546 71.64 2024-07-29
12 228 04QCB76G27203JE6E0004698 312.72 2,789.0 2,785.0 3,297.5 0.1581 0.1584 0.1541 71.73 2024-07-29
13 232 04QCB76G27803JE6E0011596 312.71 2,796.4 2,794.6 3,297.2 0.1567 0.1569 0.1503 71.62 2024-07-29
14 240 04QCB76G51303JE6T0006558 312.68 2,795.1 2,792.1 3,297.7 0.1547 0.1555 0.1553 71.96 2024-07-29
15 295 04QCB76G10603JE4C0004011 312.64 2,794.4 2,789.5 3,296.3 0.1567 0.1571 0.1550 71.47 2024-06-27
16 301 04QCB76G50303JE6M0006744 312.65 2,804.7 2,805.9 3,297.8 0.1541 0.1558 0.1510 71.73 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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