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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
GPEV314H240921R1001 323.00 57.59 42.16 GP-PC200 BMS
GPEV280H240112R1001 297.00 58.00 42.69 GP-PC200 BMS
GPRP280L231127R2603 285.00 57.86 40.97 GP-PC200 BMS
GPEV280H231123R1009 303.00 58.00 41.23 GP-PC200 BMS
GPEV280L230602R1302 301.00 57.02 40.69 GP-PC200 BMS
GPEV280H240122R1003 298.00 58.00 42.89 GP-PC200 BMS
GPEV280H240620R1022 304.00 56.82 41.26 GP-PC200 BMS
GPHC280H240422R1501 294.00 56.37 41.76 GP-PC200 BMS
GPEV280H230616R1016 304.00 57.44 41.32 GP-PC200 BMS
GPEV280H231220R1006 296.00 58.00 42.13 GP-PC200 BMS
GPEV314H241105R1016 326.00 57.18 41.88 GP-PC200 BMS
GPHC280H240817R1502 295.00 56.37 41.65 GP-PC200 BMS
GPEV280H240323R1011 306.00 57.99 42.10 GP-PC200 BMS
GPEV280H230625R1010 306.00 57.65 41.40 GP-PC200 BMS
GPEV280H240620R1021 303.00 57.29 41.59 GP-PC200 BMS
GPHC280H240611R1004 294.00 57.21 41.13 GP-PC200 BMS
GPHC280H240607R2901 293.00 57.41 41.11 GP-PC200 BMS
GPEV280L230921R2101 288.00 57.86 41.18 GP-PC200 BMS
GPRP280L231127R3203 286.00 57.81 40.91 GP-PC200 BMS
GPEV280H231123R1017 303.00 58.00 42.85 GP-PC200 BMS
Specification of The Battery

Pack SN:GPEV280H241026R1017
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: 305.00 Ah (15.62 kWh)
Max Charge Voltage: 57.99 V
Min Discharge Voltage: 41.59 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 GPEV280H241026R1017 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
1 149 04QCB76G10603JE4B0001543 310.27 2,798.9 2,794.5 3,296.2 0.1571 0.1581 0.1547 71.44 2024-06-27
2 150 04QCB76G10603JE4B0001617 310.73 2,796.8 2,791.1 3,296.2 0.1579 0.1580 0.1548 71.47 2024-06-27
3 156 04QCB76G21203JE4C0009443 312.12 2,795.6 2,789.2 3,296.1 0.1568 0.1553 0.1526 71.52 2024-06-27
4 198 04QCB76G10603JE4C0004525 313.21 2,797.6 2,792.1 3,296.4 0.1529 0.1538 0.1492 71.46 2024-06-27
5 200 04QCB76G10603JE4C0004004 311.31 2,796.0 2,791.4 3,296.3 0.1539 0.1555 0.1520 71.59 2024-06-27
6 202 04QCB76G10603JE4C0004014 311.75 2,795.8 2,790.7 3,296.3 0.1567 0.1558 0.1531 71.46 2024-06-27
7 220 04QCB76G10603JE4B0000319 312.78 2,794.8 2,789.9 3,296.3 0.1549 0.1552 0.1540 71.48 2024-06-27
8 250 04QCB76G10503JE4B0009762 312.46 2,791.7 2,786.2 3,296.1 0.1575 0.1592 0.1551 71.46 2024-06-27
9 261 04QCB76G21203JE4C0004060 312.73 2,791.7 2,785.6 3,296.1 0.1550 0.1553 0.1528 71.45 2024-06-27
10 267 04QCB76G11303JE4D0001480 311.60 2,789.9 2,784.8 3,296.3 0.1553 0.1582 0.1542 71.46 2024-06-27
11 277 04QCB76G10603JE4C0004773 311.87 2,795.1 2,788.9 3,296.5 0.1546 0.1559 0.1502 71.45 2024-06-27
12 281 04QCB76G10603JE4C0003926 311.93 2,796.1 2,790.0 3,296.4 0.1547 0.1544 0.1516 71.47 2024-06-27
13 282 04QCB76G10603JE4C0004774 312.08 2,795.0 2,789.1 3,296.3 0.1544 0.1548 0.1515 71.46 2024-06-27
14 284 04QCB76G21203JE4C0004967 312.16 2,795.6 2,789.2 3,296.2 0.1568 0.1573 0.1553 71.49 2024-06-27
15 287 04QCB76G21203JE4C0004950 311.80 2,796.0 2,789.8 3,296.4 0.1577 0.1554 0.1531 71.52 2024-06-27
16 288 04QCB76G10503JE4B0009591 310.29 2,794.8 2,788.3 3,296.2 0.1558 0.1555 0.1514 71.45 2024-06-27
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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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