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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
GPHC280H240910R1601 290.00 56.56 42.70 GP-JK200 BMS
GPEV280H240701R1010 305.00 57.84 40.90 GP-PC200 BMS
GPEV280H240105R1027 302.00 58.00 41.68 GP-PC200 BMS
GPEV280H230705R1004 305.00 57.16 41.25 GP-PC200 BMS
GPEV280H230911R1006 301.00 56.93 41.40 GP-PC200 BMS
GPEV280L230801R3401 287.00 56.31 41.99 GP-PC200 BMS
GPEV280H240729R1005 303.00 58.00 41.67 GP-PC200 BMS
GPHC280H240615R1302 294.00 56.00 41.56 GP-PC200 BMS
GPEV280H240105R1001 299.00 57.98 41.91 GP-PC200 BMS
GPEV280L230913R2910 283.00 57.13 41.67 GP-RN150 BMS
GPEV280H231220R1010 298.00 58.00 42.50 GP-PC200 BMS
GPEV280L230801R2203 287.00 57.52 40.46 GP-RN150 BMS
GPHC280H240611R1201 294.00 57.15 41.59 GP-PC200 BMS
GPHC280H240607R1303 292.00 56.23 41.98 GP-PC200 BMS
GPEV100H240930R1020 105.00 57.98 41.51 GP-PC100 BMS
GPHC280H240613R1201 293.00 56.50 42.21 GP-PC200 BMS
GPEV280H240814R1007 306.00 57.84 41.98 GP-PC200 BMS
GPEV280H240314R1014 305.00 58.00 41.86 GP-PC200 BMS
GPHC280H240926R1201 292.00 57.53 43.38 GP-RN200 BMS
GPEV280H240124R1006 300.00 58.00 42.09 GP-PC200 BMS
Specification of The Battery

Pack SN:GPEV280H240520R1021
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: 300.00 Ah (15.36 kWh)
Max Charge Voltage: 58.00 V
Min Discharge Voltage: 43.03 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 GPEV280H240520R1021 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 6 04QCB76G37903JDBW0008915 313.19 2,792.7 2,784.8 3,295.6 0.1553 0.1531 0.1495 71.53 2024-04-26
2 7 04QCB76G27403JDBW0006882 313.01 2,793.6 2,784.6 3,295.6 0.1554 0.1555 0.1500 71.44 2024-04-26
3 9 04QCB76G37903JDBW0008211 313.29 2,793.5 2,784.1 3,295.6 0.1546 0.1530 0.1500 71.47 2024-04-26
4 11 04QCB76G37903JDBW0008931 313.19 2,793.5 2,785.0 3,295.6 0.1548 0.1553 0.1504 71.54 2024-04-26
5 20 04QCB76G37903JDBW0008865 313.06 2,794.9 2,786.1 3,295.6 0.1530 0.1543 0.1497 71.54 2024-04-26
6 24 04QCB76G37903JDBW0008934 313.06 2,793.6 2,785.5 3,295.6 0.1540 0.1545 0.1493 71.52 2024-04-26
7 26 04QCB76G37903JDBW0010699 313.35 2,792.2 2,782.8 3,295.6 0.1551 0.1551 0.1500 71.47 2024-04-26
8 28 04QCB76G37903JDBW0008645 313.06 2,792.3 2,782.6 3,295.6 0.1528 0.1533 0.1505 71.55 2024-04-26
9 34 04QCB76G37903JDBW0008792 313.36 2,793.5 2,785.6 3,295.6 0.1548 0.1553 0.1492 71.54 2024-04-26
10 36 04QCB76G38303JDBY0009713 313.05 2,795.4 2,787.8 3,296.0 0.1568 0.1567 0.1513 71.56 2024-04-26
11 47 04QCB76G38303JDBY0008626 313.10 2,794.2 2,786.7 3,296.0 0.1547 0.1545 0.1509 71.60 2024-04-26
12 72 04QCB76G37903JDBW0011411 313.07 2,793.2 2,785.2 3,295.6 0.1547 0.1525 0.1498 71.49 2024-04-26
13 73 04QCB76G37903JDBW0011452 313.26 2,792.3 2,784.2 3,295.6 0.1540 0.1541 0.1503 71.49 2024-04-26
14 75 04QCB76G37903JDBW0011499 313.18 2,791.9 2,783.4 3,295.6 0.1570 0.1571 0.1493 71.49 2024-04-26
15 78 04QCB76G27803JDBY0010930 313.02 2,796.4 2,788.5 3,296.0 0.1556 0.1558 0.1511 71.45 2024-04-26
16 83 04QCB76G37903JDBW0008036 313.16 2,793.9 2,783.9 3,295.6 0.1550 0.1538 0.1498 71.51 2024-04-26
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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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