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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
GPEV280H230616R1016 304.00 57.44 41.32 GP-PC200 BMS
GPEV280H230705R1026 306.00 57.75 41.29 GP-PC200 BMS
GPEV280H230802R1005 303.00 57.93 40.73 GP-PC200 BMS
GPEV280H240831R1009 307.00 58.00 42.14 GP-RN200 BMS
GPHC280H240705R2903 295.00 56.81 40.74 GP-PC200 BMS
GPEV280H240505R1011 303.00 57.99 43.69 GP-PC200 BMS
GPEV314H241101R1014 325.00 57.57 41.91 GP-PC200 BMS
GPEV280H240918R1013 306.00 57.45 41.40 GP-PC200 BMS
GPHC280H241021R1001 293.00 57.53 41.65 GP-PC200 BMS
GPRP280L231115R1902 292.00 57.99 40.92 GP-PC200 BMS
GPRP280L231012R1308 289.00 57.62 40.04 GP-PC200 BMS
GPEV280H240122R1001 297.00 58.00 41.84 GP-PC200 BMS
GPHC280H240427R2901 294.00 56.93 40.54 GP-PC200 BMS
GPEV280L230913R2915 283.00 57.09 41.61 GP-PC200 BMS
GPEV280L230801R2101 287.00 57.69 40.01 GP-PC200 BMS
GPEV280H230705R1015 305.00 57.04 40.72 GP-PC200 BMS
GPHC280H240612R1003 295.00 57.20 40.50 GP-PC200 BMS
GPRP280L231127R2903 287.00 56.91 44.43 GP-PC200 BMS
GPEV280H240616R1025 305.00 57.49 41.52 GP-PC200 BMS
GPRP280L231012R1008 292.00 57.72 40.39 GP-PC200 BMS
Specification of The Battery

Pack SN:GPEV280H240814R1010
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: 306.00 Ah (15.67 kWh)
Max Charge Voltage: 57.55 V
Min Discharge Voltage: 42.52 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 GPEV280H240814R1010 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 20 04QCB76G27203JE6V0011129 314.01 2,797.3 2,796.0 3,297.8 0.1547 0.1550 0.1526 71.72 2024-07-29
2 66 04QCB76G50503JE6N0006058 314.02 2,785.9 2,781.0 3,297.5 0.1540 0.1553 0.1546 71.65 2024-07-29
3 70 04QCB76G26703JE6N0011974 314.02 2,798.1 2,791.1 3,297.5 0.1538 0.1542 0.1553 72.17 2024-07-29
4 76 04QCB76G26503JE6W0001939 313.98 2,800.2 2,794.6 3,297.4 0.1577 0.1561 0.1528 71.56 2024-07-29
5 109 04QCB76G26903JE6P0008218 314.00 2,789.3 2,783.6 3,297.5 0.1554 0.1556 0.1528 71.68 2024-07-29
6 126 04QCB76G28003JE6B0007165 314.08 2,797.8 2,799.0 3,297.4 0.1562 0.1580 0.1521 72.97 2024-07-29
7 127 04QCB76G27003JE6R0000611 314.08 2,797.2 2,794.0 3,297.4 0.1573 0.1561 0.1530 71.63 2024-07-29
8 202 04QCB76G47903JE720011839 313.99 2,795.6 2,791.7 3,297.5 0.1536 0.1537 0.1535 71.73 2024-07-29
9 240 04QCB76G26903JE6P0000465 314.02 2,800.8 2,799.1 3,297.6 0.1554 0.1560 0.1541 71.62 2024-07-29
10 246 04QCB76G26803JE6N0007171 314.00 2,796.9 2,796.4 3,297.6 0.1546 0.1560 0.1533 71.71 2024-07-29
11 251 04QCB76G27103JE6S0000830 314.05 2,789.8 2,783.3 3,297.1 0.1549 0.1564 0.1535 71.69 2024-07-29
12 286 04QCB76G27303JE6W0008041 314.04 2,785.6 2,778.0 3,297.3 0.1549 0.1561 0.1526 71.58 2024-07-29
13 300 04QCB76G40603JE6N0001609 314.00 2,783.1 2,779.2 3,297.5 0.1565 0.1550 0.1553 71.64 2024-07-29
14 329 04QCB76G27203JE6T0002819 314.04 2,798.1 2,793.3 3,297.5 0.1558 0.1570 0.1498 71.90 2024-07-29
15 350 04QCB76G27303JE6F0004392 314.07 2,800.7 2,799.3 3,297.3 0.1575 0.1585 0.1545 71.75 2024-07-29
16 395 04QCB76G27703JE6L0002920 314.04 2,800.2 2,795.9 3,297.4 0.1586 0.1594 0.1509 71.67 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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