Shenzhen Topband Battery Co., Ltd
| Payment Terms | L/C, T/T |
| Supply Ability | 1GWH/year |
| Delivery Time | 10-40 days |
| Packaging Details | Standard Export Package |
| Nominal Voltage | 51.2V |
| Nominal Capacity | 25Ah |
| Charge voltage | 58.4V |
| Discharge cut-off voltage | 40V |
| Max Charge current | 25A |
| Discharge current | 50A |
| Peak discharge current(3s) | 115A |
| Dimension | 318*165*215 mm |
| Bluetooth | To be customised |
| case | ABS case |
| Warranty(years) | 2 |
| Ip rating | IP65 |
| Brand Name | Topband |
| Model Number | TB4825F |
| Certification | CE, TUV, UL, UN38.3, etc. |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C, T/T | Supply Ability | 1GWH/year |
| Delivery Time | 10-40 days | Packaging Details | Standard Export Package |
| Nominal Voltage | 51.2V | Nominal Capacity | 25Ah |
| Charge voltage | 58.4V | Discharge cut-off voltage | 40V |
| Max Charge current | 25A | Discharge current | 50A |
| Peak discharge current(3s) | 115A | Dimension | 318*165*215 mm |
| Bluetooth | To be customised | case | ABS case |
| Warranty(years) | 2 | Ip rating | IP65 |
| Brand Name | Topband | Model Number | TB4825F |
| Certification | CE, TUV, UL, UN38.3, etc. | Place of Origin | China |
| High Light | lithium iron phosphate lifepo4 batteries ， lithium iron phosphate battery pack | ||
48V 25Ah Electric Lawn Mower Lithium Iron Phosphate Battery IP65 Rating
1. Specifications:
| Model | TB4825F |
| Nominal Voltage | 51.2V |
| Nominal Capacity | 25Ah |
| Charge voltage | 58.4V |
| Discharge cut-off voltage | 40V |
| Max Charge current | 25A |
| Discharge current | 50A |
| Peak discharge current(3s) | 115A |
| Weight | 12.8KG |
| Dimension | 318*165*215 mm |
| BMS | Yes |
| Bluetooth | can be customised |
| Working temperature | -25 - 55℃ |
| assembly application | support 4 series |
| inner module | 3.2v 25Ah LiFePO4 battery module |
| cell assembly ways | 16S1P |
2. Battery Pack Reliability Test
2.1 Testing condition (Unless Special Requirements)
Temperature:20±5℃ Relative Humidity: 45~75%
Atmosphere Pressure: 86~106kPa
All testing under full capacity
2.2 Reliability Test
| No. | Items | Standards | Testing Methods |
| 1 | Vibration Testing | The appearance of battery should not leakage, break or explosion | Fix a charged battery on a vibrating table, vibrate it for 90 minutes in three mutually perpendicular directions at the 0.8mm resonance. The frequency is to be varied at the rate of 1hz/min between 10 and 55 hertz. |
| 2 | High Temperature Discharge Testing | The battery should be no remarkable breakage, distortion. Discharge time should not less than 255mins | Place a full charged battery under the environments of 55℃ for 2 hours. Discharge it at the current of 0.2C to the cut-off voltage. Then keep it at 20℃±5℃ for 2 hours. |
| 3 | Low Temperature Discharge Testing | The battery should be no remarkable breakage, distortion. Discharge time should not less than 180 minute | Place a full charged battery under the environments of -20℃ for 15-24 hours. Discharge it at the current of 0.2C to the cut-off voltage. Then keep it at 20℃±5℃ for 2 hours. |
| 4 | Constant Humidity & Temperature Testing | The battery should be no remarkable breakage, distortion. Discharge time should not less than180mins | Place a full charged battery under the environments of 40℃ and 90% - 95%RH for 48 hours. And keep it in the room temperature for 2 hours. Then discharge it at the current of 0.2C to the cut-off voltage. |
| 5 | High & Low Temperature Storage | The battery should be no remarkable breakage, distortion. And charge/discharge normally | Place a full charged battery in a oven with 55±2℃ for 2 hours, then keep it under 20±5℃ for 4hrs, then place it in a oven with -20±2℃ for 2 hours, then keep for 4 hours under 20±5℃, cycle as high temperature-normal temperature-low temperature-normal temperature-high temperature for 10 times |
3. BATTERY PACK SAFETY TEST
3.1 Testing condition (Unless Special Requirements)
Temperature:20±5℃ Relative Humidity: 45~75%
Atmosphere Pressure: 86~106kPa
All testing under full capacity
3.2 Battery Pack Safety Test
| No. | Items | Standards | Testing Methods |
| 1 | Short-Circuit | The battery should be no remarkable breakage, distortion. And charge normally. | Use a resistor with less than 0.05Ω to make the battery short circuit for 1 hour. The appearance and characteristics are normal. |
| 2 | Over Discharge Protection Test | The battery should be no remarkable breakage, distortion. Appearance and charge are normal. | Discharge the battery at the rate of 0.2C with the load of 30Ω for 24h . Charging for 10sec with specified adapter , and check the voltage(≥8V) |
| 3 | Impact Test | The battery should be no explosion or catch fire | Place a full charged battery on a flat and put a stainless steel stick (Diamond 7.9mm) in the middle of the battery upright . Beat the steel stick with 9.1Kg |
Advantages:
1. F series battery use LiFePO4 cells, with super safe chemistry property
2. Battery with built-in self-development high-performance BMS
3. With built-in Bluetooth IC, patent design
4. High in-rush current capability, protect battery and inverters compatible
5. Wide temperature range design, workable at -30~50 , 70% discharge at -20
6. Support max. 4pcs in series andparallel connection
7. Mature solution, stable performance
8. CE, UL, UN38.3 certificated
Main Applications:
1. Energy Storage:Solar-Wind Power System / City Grid (On/Off) / Community and Family / RV Motorhome /Golf Carts Battery / Boat Marine Yachts / Electric Skateboard / Vehecle.
2. Back-up System and UPS:Telcom Base / CATV system / Computer Server Center / Medical Instrumnt / Military Equipment.
3. Other Applications:Security and Electronics / Mobile POS, Mining Lihgt / Torch / LED Light / Emergency Light / LED Backup / Engine Starting Battery,etc.
1. Fast delivery service.
2. Quick response to your any inquiry within 12 hours.
3. Customized design is available, OEM and ODM are welcome.
4. Offer the highest quality with the best price.
5. We offer 2 years' warranty on our LiFePO4 battery.
6. Professional pre-sales service with whole-hearted after-sales service.
1. Pack in safety industrial package, with IATA shipping standard.
2. For sample or small order: ship by DHL, UPS, FedEx and TNT etc…
3. For large order, ship by AIR or OCEAN.
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
1996
Total Annual:
240million-250million
Employee Number:
5000~5500
Ecer Certification：
Active Member
Shenzhen Topband Co., Ltd. was registered in so-called “China Silicon Valley”, Shenzhen Hi-tech Industrial Park in 1996, and got listed in Shenzhen Stock Exchange ( the stock code as 002139) in 2007. After years of rapid development, now Topband takes lithium battery as the ... Shenzhen Topband Co., Ltd. was registered in so-called “China Silicon Valley”, Shenzhen Hi-tech Industrial Park in 1996, and got listed in Shenzhen Stock Exchange ( the stock code as 002139) in 2007. After years of rapid development, now Topband takes lithium battery as the ...
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