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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
GPRP280L231113R3205 284.00 57.86 40.93 GP-PC200 BMS
GPEV280H240520R1017 299.00 57.99 42.27 GP-PC200 BMS
GPHC280H240705R1003 293.00 56.68 41.13 GP-PC200 BMS
GPEV280L230913R2928 288.00 57.28 40.74 GP-PC200 BMS
GPEV280H240927R1001 299.00 57.99 42.60 GP-PC200 BMS
GPEV280H240505R1008 308.00 57.99 41.63 GP-PC200 BMS
GPEV280H240905R1024 306.00 57.98 42.62 GP-RN200 BMS
GPHC280H240705R1001 295.00 56.73 40.45 GP-PC200 BMS
GPHC280H240710R1301 294.00 57.03 41.86 GP-PC200 BMS
GPEV280H240105R1015 301.00 58.00 42.65 GP-PC200 BMS
GPEV280H231010R1001 301.00 57.33 40.86 GP-PC200 BMS
GPHC280H240422R1401 294.00 57.22 42.26 GP-JK200 BMS
GPHC280H241021R1201 291.00 56.99 42.27 GP-PC200 BMS
GPEV280H230705R1020 304.00 56.86 41.04 GP-PC200 BMS
GPHC280H240910R1601 290.00 56.56 42.70 GP-JK200 BMS
GPEV280H240616R1015 304.00 57.77 41.65 GP-PC200 BMS
GPEV280H231030R1016 298.00 57.49 42.68 GP-PC200 BMS
GPEV280H240505R1001 305.00 58.00 43.07 GP-PC200 BMS
GPEV280L230523R1005 283.00 56.80 40.52 GP-PC200 BMS
GPEV280H240710R1009 307.00 58.00 41.10 GP-PC200 BMS
Specification of The Battery

Pack SN:GPEV280H241014R1016
Pack Type: 51.2V LiFePO4 Battery
Pack Grade: Premium
BMS Type: GP-PC200 BMS
Balancer: 4A Bluetooth Active Balancer
Heater: With 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: 57.67 V
Min Discharge Voltage: 40.28 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 GPEV280H241014R1016 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 3 04QCB76G22103JE5R0000121 312.13 2,804.5 2,803.8 3,297.4 0.1561 0.1568 0.1559 72.68 2024-07-29
2 27 04QCB76G26503JE6X0003175 314.27 2,800.5 2,797.0 3,297.4 0.1543 0.1539 0.1507 72.37 2024-07-29
3 42 04QCB76G26803JE6N0007764 314.31 2,791.7 2,786.7 3,297.2 0.1554 0.1552 0.1517 72.23 2024-07-29
4 57 04QCB76G26803JE6N0007981 312.98 2,796.2 2,793.0 3,297.2 0.1579 0.1579 0.1539 71.84 2024-07-29
5 82 04QCB76G26703JE6M0003954 313.58 2,804.6 2,802.3 3,297.4 0.1574 0.1578 0.1521 72.40 2024-07-28
6 83 04QCB76G27103JE6T0010734 313.56 2,786.0 2,780.7 3,297.6 0.1556 0.1565 0.1533 71.76 2024-07-28
7 95 04QCB76G26903JE6P0009157 313.49 2,799.5 2,795.4 3,297.3 0.1563 0.1556 0.1536 71.59 2024-07-29
8 97 04QCB76G26803JE6N0005819 313.90 2,788.3 2,782.9 3,297.3 0.1571 0.1564 0.1531 72.03 2024-07-29
9 98 04QCB76G26803JE730006123 315.28 2,794.4 2,788.8 3,297.7 0.1546 0.1531 0.1528 72.83 2024-07-29
10 107 04QCB76G27303JE6W0006474 312.09 2,797.1 2,794.5 3,297.9 0.1573 0.1576 0.1552 71.78 2024-07-29
11 110 04QCB76G40603JE6N0001152 312.07 2,799.2 2,797.4 3,297.8 0.1547 0.1558 0.1550 71.72 2024-07-29
12 111 04QCB76G27103JE6T0011138 313.48 2,793.3 2,789.1 3,297.5 0.1574 0.1577 0.1543 71.55 2024-07-28
13 121 04QCB76G27103JE6T0011655 313.55 2,785.8 2,780.2 3,297.6 0.1567 0.1569 0.1509 71.91 2024-07-28
14 133 04QCB76G27503JE6J0011633 313.79 2,797.1 2,793.8 3,297.0 0.1579 0.1585 0.1551 71.60 2024-07-29
15 168 04QCB76G26803JE6N0002962 313.90 2,784.0 2,776.9 3,297.3 0.1559 0.1574 0.1514 71.62 2024-07-28
16 258 04QCB76G28003JE6B0006847 313.65 2,798.5 2,799.3 3,297.3 0.1561 0.1574 0.1553 72.68 2024-07-28
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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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