TOPBAND 48V 460A LiFePO4 battery
1. General Information
This specification defines the performance of rechargeable LiFePO4 battery pack TB48460F-T210A manufactured by the type, performance, technical characteristics, warning and caution of the battery pack.
2. Battery Specification(@ 25±5℃)
| NO. |
Item |
Standard |
Content |
| 2.1 |
Norminal Capacity |
460Ah |
@0.33C |
| Smallest Capacity |
460Ah |
@0.33C |
| 2.2 |
Nominal Energy |
22.08KWh |
|
| 2.3 |
Nominal Voltage |
48V |
15pcs Serise connect
|
| 2.4 |
Shipping Voltage |
≥48V |
|
| 2.5 |
Internal resistance |
≤20mΩ |
|
| 2.6 |
Communication Method |
CAN (Internal communication)
|
|
| 2.7 |
LCD Display |
5 Touch Screen |
|
| 2.8 |
Normal charge voltage
|
54.75±3V |
|
| 2.9 |
Float charge voltage(for Standby use)
|
51.75±3V |
|
| 2.10 |
Allowed MAX charge current
|
200A continuous |
|
| 2.11 |
Allowed MAX discharge current
|
continuous 300A |
|
| peak discharge 400A/10S |
|
| 2.12 |
End of discharge voltage
|
300V |
|
| 2.13 |
Dimension |
Wide 482±2 mm |
|
| High 176±2 mm |
| Deep 445±2 mm(not include handle) |
| 2.14 |
Weight |
around 380kg |
|
| 2.15 |
color |
Black |
|
| 2.16 |
Working Temperature |
charge:0～50℃ |
|
| discharge:-20～60℃ |
|
| recommend temperature:15℃～35℃ |
|
| 2.17 |
Self-discharge rate |
left capacity: ≤3%/month; ≤20%/year |
|
| 2.18 |
Storage environment |
≤1month :-20～+35℃,45～75%RH |
|
| ≥3month :-10～+35℃,45～75%RH |
|
| recommed storage environment:15～30℃,45～75%RH |
Recommend environment |
|
When the battery needs to be stored for a long time, it should be charger to closet to 50% SOC with a voltage about 49.5V and placed under the recommended storage conditions. The battery needs to be charged at least every 6months if out of use.(Charge first , discharge then recharge 50%))
|
3.Test Conditions
3.1 Standard Test Conditions
3.1.1 Unless otherwise specified, all product performance specifications are tested at temperature 25℃±2℃,relative humidity 45%~75%RH.
3.1.3 Unless otherwise specified all product performance specifications are tested on unused products within 1 month of the date of manufacture.
3.2 Standard Charger Model
Standard charging refers to charging at the ambient temperature of 25±2℃ with 0.33c constant current to the charging limit voltage, and then charging at constant voltage to the charging current less than 0.02c.
3.3 Quick Charging Model
Fast charging refers to charging at 0.33c constant current to charging limit voltage, and then charging at constant voltage to charging current less than 0.02c.
3.4 Standard Discharge Model
Standard discharge is the discharge of the battery to the termination voltage at an ambient temperature of 25±2℃ with a current of 0.33c.
3.5 Quick Discharge Model
Rapid discharge is the discharge of 1C current to the termination voltage.
4.Product Performance
| No. |
Item
|
Content
|
Criterion
|
| 4.1 |
Min Capacity
|
≥460Ah |
Under the environment temperature and humidity conditions of the standard test, the battery was charged for 2.5 hours at 3.65v/m2 and 0.33c, and then left to rest for 30min.Discharge with current of 1.0c, discharge to the average voltage of 2.7v/cut-off
|
| 4.2 |
Internal Impedance
|
≤20mΩ |
Under 50% SOC of the battery, the frequency is 1kHz ac internal resistance tester |
| 4.3 |
Short circuit protection
|
500A fuse can be blown |
Not allow user to test |
| 4.4 |
@DOD100%
Cycle life @DOD100%
|
≥2000 times； |
- The battery was placed in an environment of 25℃±3℃ for 24 hours；
- At 3.65v/m2, charge at 0.33c for 2.5 hours, and leave for 30min；
- Discharge the 1.0c current to an average voltage of 2.7v/cut-off；
The actual discharge capacity of the first discharge test was calibrated as C25；
- Repeat the test steps and a total of 1200 times；
- Determination method: until the 100th cycle, the battery does not appear fire, leak, bulge, break and open the valve, and the capacity is not less than 80% C25.
|
| 4.5 |
Discharge temperature
characteristic
|
-20℃(6h) |
≥70% |
Capacity @specified temperature
Capacity @ 25℃
|
| 0℃(6h) |
≥80% |
| 25℃(4h) |
≥100% |
| 55℃(4h) |
≥95% |
| 4.6 |
Capacity Remain
|
remain capacity≥90%
recovery capacity≥95%
|
After standard charging, the battery should be open and put aside for 28 days at 25 ° C ±5 ° C, and the discharge capacity should meet the test requirements at room temperature with constant discharge at 0.33c to the cut-off voltage. Then the battery should be charged according to the standard, and discharged at 0.33c current to the termination voltage at the ambient temperature of 25 ° C ±5 ° C, and the discharge capacity should meet the test requirements. |
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