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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
GPEV280H231123R1004 306.00 57.99 42.70 GP-PC200 BMS
GPHC280H240413R1303 295.00 57.02 41.31 GP-PC200 BMS
GPEV280H240105R1019 301.00 58.00 42.51 GP-PC200 BMS
GPRP280L231107R3201 284.00 56.26 42.91 GP-PC200 BMS
GPEV280H231019R1016 301.00 57.86 40.86 GP-PC200 BMS
GPHC280H240705R1302 295.00 57.13 41.21 GP-PC200 BMS
GPEV314H241015R1001 322.00 57.54 43.10 GP-PC200 BMS
GPHC280H240515R1207 293.00 57.23 40.81 GP-PC200 BMS
GPEV280H230911R1005 299.00 56.79 41.72 GP-PC200 BMS
GPEV280H240620R1047 305.00 57.22 41.11 GP-PC200 BMS
GPEV280H240616R1019 304.00 57.87 41.87 GP-PC200 BMS
GPEV280H240105R1009 304.00 57.99 41.81 GP-PC200 BMS
GPHC280H240612R1403 294.00 56.87 40.64 GP-PC200 BMS
GPEV280H241111R1005 305.00 57.46 41.33 GP-PC200 BMS
GPEV280H230616R1001 303.00 57.58 42.50 GP-PC200 BMS
GPEV314H241105R1009 325.00 57.90 41.84 GP-PC200 BMS
GPHC280H240401R1004 294.00 57.45 41.60 GP-PC200 BMS
GPEV280H231019R1001 300.00 57.73 41.20 GP-PC200 BMS
GPRP280L231207R3101 289.00 57.71 41.83 GP-PC200 BMS
GPEV314H240921R1012 326.00 57.97 41.82 GP-PC200 BMS
Specification of The Battery

Pack SN:GPEV280H241111R1008
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: 57.78 V
Min Discharge Voltage: 41.50 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 GPEV280H241111R1008 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 23 04QCB76G51303JE6T0006579 312.06 2,794.1 2,791.0 3,297.7 0.1543 0.1558 0.1540 71.64 2024-07-29
2 24 04QCB76G50703JE6P0007209 312.79 2,781.6 2,778.4 3,297.5 0.1540 0.1540 0.1515 71.72 2024-07-29
3 55 04QCB76G47503JE6W0008641 312.14 2,798.6 2,797.8 3,297.9 0.1543 0.1558 0.1533 71.60 2024-07-29
4 68 04QCB76G50703JE6P0002383 311.94 2,797.8 2,798.4 3,297.8 0.1536 0.1544 0.1547 71.61 2024-07-29
5 76 04QCB76G41003JE6R0004708 312.24 2,798.6 2,798.0 3,297.5 0.1571 0.1575 0.1558 71.80 2024-07-29
6 93 04QCB76G51303JE6T0006559 312.21 2,794.2 2,791.0 3,297.6 0.1553 0.1569 0.1509 72.03 2024-07-29
7 132 04QCB76G26803JE730006122 315.24 2,794.2 2,788.8 3,297.7 0.1566 0.1561 0.1511 71.76 2024-07-29
8 141 04QCB76G44503JE740009544 312.95 2,789.7 2,784.1 3,298.0 0.1536 0.1524 0.1504 71.59 2024-07-29
9 161 04QCB76G27203JE6V0005997 312.91 2,786.3 2,783.4 3,297.6 0.1571 0.1569 0.1548 71.81 2024-07-29
10 171 04QCB76G27103JE6S0003476 314.43 2,795.0 2,791.2 3,297.5 0.1561 0.1558 0.1531 71.64 2024-07-29
11 184 04QCB76G45303JE6V0009400 312.98 2,799.8 2,800.2 3,297.7 0.1558 0.1563 0.1528 71.59 2024-07-29
12 208 04QCB76G26903JE6P0008049 312.17 2,797.2 2,792.7 3,297.2 0.1563 0.1573 0.1541 71.70 2024-07-29
13 211 04QCB76G50303JE6M0009898 312.22 2,789.3 2,786.4 3,297.6 0.1541 0.1556 0.1523 71.63 2024-07-29
14 220 04QCB76G27203JE6V0005689 313.81 2,795.7 2,789.9 3,297.4 0.1579 0.1560 0.1546 71.59 2024-07-29
15 229 04QCB76G26903JE6P0000862 313.69 2,790.4 2,786.0 3,297.7 0.1562 0.1565 0.1505 71.63 2024-07-29
16 283 04QCB76G27403JE6H0009478 312.96 2,792.3 2,789.4 3,297.3 0.1572 0.1577 0.1518 71.69 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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