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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
GPEV280L230602R2004 303.00 57.01 40.81 GP-PC200 BMS
GPEV280H240124R1001 296.00 57.99 42.08 GP-PC200 BMS
GPHC280H240613R1201 293.00 56.50 42.21 GP-PC200 BMS
GPEV280H240515R1001 298.00 57.70 42.56 GP-PC200 BMS
GPHC280H240705R2903 295.00 56.81 40.74 GP-PC200 BMS
GPHC280H240427R2901 294.00 56.93 40.54 GP-PC200 BMS
GPEV280H240814R1006 307.00 57.76 41.06 GP-PC200 BMS
GPEV280H241026R1011 305.00 57.98 41.88 GP-PC200 BMS
GPRP280L231012R1012 290.00 57.15 40.49 GP-PC200 BMS
GPHC280H240615R1008 294.00 56.34 41.10 GP-PC200 BMS
GPEV280H240918R1010 306.00 57.59 42.06 GP-PC200 BMS
GPRP280L231012R1016 289.00 57.66 40.04 GP-PC200 BMS
GPEV280H230705R1019 306.00 57.40 40.52 GP-PC200 BMS
GPEV306H240402R1001 331.00 56.91 41.48 GP-PC200 BMS
GPEV280H240515R1018 306.00 57.99 41.74 GP-PC200 BMS
GPEV314H241101R1004 325.00 57.23 42.15 GP-PC200 BMS
GPEV280H241014R1010 306.00 57.98 41.47 GP-PC200 BMS
GPEV280H231019R1023 300.00 57.99 41.33 GP-PC200 BMS
GPRP280L231113R3204 284.00 57.25 40.69 GP-PC200 BMS
GPEV280H241019R1009 298.00 57.54 46.02 GP-PC200 BMS
Specification of The Battery

Pack SN:GPEV280H240918R1007
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: 57.60 V
Min Discharge Voltage: 42.05 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 GPEV280H240918R1007 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 75 04QCB76G26803JE730006662 312.93 2,797.0 2,791.0 3,297.5 0.1570 0.1561 0.1496 72.18 2024-07-29
2 77 04QCB76G26803JE730009322 312.93 2,795.0 2,788.0 3,297.6 0.1569 0.1573 0.1539 71.60 2024-07-29
3 78 04QCB76G27203JE6V0011098 312.89 2,798.9 2,797.9 3,297.8 0.1565 0.1549 0.1538 72.27 2024-07-29
4 87 04QCB76G27403JE6H0009709 312.89 2,799.9 2,795.5 3,297.3 0.1549 0.1561 0.1541 72.10 2024-07-29
5 104 04QCB76G26803JE730006729 312.94 2,796.9 2,791.1 3,297.6 0.1568 0.1565 0.1517 72.21 2024-07-29
6 110 04QCB76G27503JE6J0006432 312.91 2,803.4 2,801.9 3,297.2 0.1565 0.1571 0.1544 71.91 2024-07-29
7 113 04QCB76G27303JE6V0000402 312.95 2,791.8 2,788.7 3,297.7 0.1573 0.1586 0.1535 71.63 2024-07-29
8 117 04QCB76G26903JE6P0010376 312.89 2,804.0 2,797.7 3,297.2 0.1584 0.1565 0.1549 71.62 2024-07-29
9 134 04QCB76G26803JE6N0010453 312.87 2,800.8 2,796.3 3,297.3 0.1566 0.1568 0.1545 71.64 2024-07-29
10 169 04QCB76G27603JE6K0004361 312.88 2,795.2 2,792.9 3,297.3 0.1597 0.1594 0.1536 71.74 2024-07-29
11 205 04QCB76G27703JE6M0011253 312.92 2,798.8 2,794.2 3,297.3 0.1561 0.1570 0.1545 71.62 2024-07-29
12 211 04QCB76G27403JE6H0007404 312.94 2,795.4 2,791.1 3,297.4 0.1564 0.1571 0.1513 71.58 2024-07-29
13 228 04QCB76G27203JE6E0001856 312.96 2,797.2 2,796.3 3,297.2 0.1580 0.1584 0.1554 72.27 2024-07-29
14 230 04QCB76G27403JE6H0008067 312.92 2,791.4 2,786.3 3,297.4 0.1574 0.1571 0.1555 71.84 2024-07-29
15 241 04QCB76G27403JE6G0002896 312.95 2,792.9 2,791.9 3,297.2 0.1555 0.1567 0.1525 72.09 2024-07-29
16 250 04QCB76G27403JE6H0009649 312.91 2,800.6 2,795.4 3,297.4 0.1551 0.1553 0.1512 72.22 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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