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Battery Pack Information Lookup

Get Data of Your Gobel Power Battery
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GP-SR1-PC314 Premium Example: GPEV314H240921R1012
GP-SR1-JK314 Standard Example: GPEV314M250109R1001
GP-SR1-JK314 Standard Example: GPGT314L250510R1011
GP-SR1-JK314 Standard Example: GPBT314M250926R1003
GP-SR1-JK314 Standard Example: GPCN314M250929R1003
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
GPHC280H240615R1203 293.00 56.00 41.17 GP-PC200 BMS
GPEV280H240831R1004 306.00 57.98 42.08 GP-RN200 BMS
GPEV314H250113R1009 326.00 56.94 43.65 GP-PC200 BMS
GPEV314H240921R1013 326.00 57.97 41.11 GP-PC200 BMS
GPEV314H241105R1002 324.00 57.53 41.54 GP-PC200 BMS
GPEV314H250424R1011 330.00 57.28 41.09 GP-PC200 BMS
GPEV314H250307R1001 327.00 57.47 41.48 GP-PC200 BMS
GPEV280L230602R2004 303.00 57.01 40.81 GP-PC200 BMS
GPEV314H250512R1014 329.00 57.96 41.31 GP-PC200 BMS
GPEV280H230705R1011 305.00 57.42 40.70 GP-PC200 BMS
GPEV314H250616R1019 328.00 57.99 41.48 GP-PC200 BMS
GPHC280M250307R1401 288.00 56.57 41.41 GP-JK200 BMS
GPEV280L230523R1003 283.00 56.72 40.21 GP-PC200 BMS
GPHC280M250509R1202 290.00 56.40 41.91 GP-JK200 BMS
GPHC280H241021R1201 291.00 56.99 42.27 GP-PC200 BMS
GPEV280H231220R1025 303.00 57.99 42.36 GP-PC200 BMS
GPEV280H241019R1010 299.00 56.95 45.01 GP-PC200 BMS
GPEV280H250804R1002 298.00 57.90 43.22 GP-JK200 BMS
GPEV280H240918R1010 306.00 57.59 42.06 GP-PC200 BMS
GPCN314M250924R1015 328.00 57.28 41.85 GP-JK200 BMS
Specification of The Battery

Pack SN:GPCN314M250924R1002
Pack Type: 51.2V LiFePO4 Battery
Pack Grade: Standard
BMS Type: JK200 BMS
Balancer: Built-in BMS 2A
Heater: Without Heater
Cell Type: Cornex 314Ah
Cell Grade: HSEV-
Cells Connection: 16S1P
Pack Test Result

Full Capacity: 327.00 Ah (16.74 kWh)
Max Charge Voltage: 57.05 V
Min Discharge Voltage: 41.75 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 GPCN314M250924R1002 Test Data)

Cells Information

Cell Id QR Capacity (Ah) OCV1 (mV) RI1 (mΩ) Self Discharge Thick (mm) Test Date
1 36 0MDCB163205003F500407236 331.45 3,301.3 0.1858 0.0100 71.52 2025-07-22
2 37 0MDCB163205003F6P0402553 331.32 3,301.1 0.1857 0.0100 71.58 2025-07-06
3 76 0MDCB163205003F620404981 331.32 3,301.9 0.1830 0.0100 71.59 2025-07-22
4 84 0MDCB163205003F610404927 331.08 3,299.2 0.1850 0.0100 71.54 2025-06-28
5 131 0MDCB163205003F6J0408016 331.62 3,301.0 0.1809 0.0090 71.56 2025-07-02
6 140 0MDCB163205003F6M0407237 331.12 3,300.6 0.1767 0.0090 71.52 2025-07-06
7 159 0MDCB163205003F610405594 331.06 3,300.4 0.1865 0.0100 71.52 2025-06-27
8 209 0MDCB163205003F5Y0413306 332.01 3,300.1 0.1860 0.0100 71.77 2025-06-20
9 287 0MDCB163205003F690428865 331.41 3,301.7 0.1824 0.0100 71.63 2025-06-23
10 294 0MDCB163205003F6J0407280 331.22 3,301.7 0.1837 0.0100 71.64 2025-07-15
11 296 0MDCB163205003F6M0413510 331.93 3,300.9 0.1821 0.0100 71.54 2025-07-05
12 308 0MDCB163205003F6P0441725 331.30 3,301.9 0.1857 0.0100 71.55 2025-07-11
13 310 0MDCB163205003F610408569 331.57 3,300.2 0.1842 0.0090 71.46 2025-06-18
14 327 0MDCB163205003F620421655 331.08 3,301.0 0.1844 0.0090 71.49 2025-06-21
15 335 0MDCB163205003F6R0415071 331.59 3,301.9 0.1819 0.0100 71.54 2025-07-05
16 338 0MDCB163205003F6K0435917 331.92 3,301.7 0.1815 0.0100 71.50 2025-07-03
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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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