Shenzhen Topband Battery Co., Ltd
| Payment Terms | L/C, T/T |
| Supply Ability | 450Mwh/year |
| Delivery Time | 2~4weeks for samples; 4~6weeks for mass production |
| Packaging Details | standard export carton |
| Nominal Voltage | 12.8V |
| Typical Capacity | 50Ah |
| Energy | 640Wh |
| Internal resistance | ≤40mΩ |
| Discharge cut-off voltage | 8.0V |
| Weight | 6.5kg |
| Dimension | 174x165x196mm |
| Meterial | LiFePO4 |
| Operating Temperature | -20～60℃ |
| Cycle life | ≥2000 (DOD100%) |
| Warranty | 2 years |
| Brand Name | Topband |
| Model Number | TB1250F-S110A |
| Certification | CE, UN38.3 |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C, T/T | Supply Ability | 450Mwh/year |
| Delivery Time | 2~4weeks for samples; 4~6weeks for mass production | Packaging Details | standard export carton |
| Nominal Voltage | 12.8V | Typical Capacity | 50Ah |
| Energy | 640Wh | Internal resistance | ≤40mΩ |
| Discharge cut-off voltage | 8.0V | Weight | 6.5kg |
| Dimension | 174x165x196mm | Meterial | LiFePO4 |
| Operating Temperature | -20～60℃ | Cycle life | ≥2000 (DOD100%) |
| Warranty | 2 years | Brand Name | Topband |
| Model Number | TB1250F-S110A | Certification | CE, UN38.3 |
| Place of Origin | China | ||
| High Light | lithium iron phosphate deep cycle battery ，lithium battery pack | ||
Deep Cycle Lithium Battery 12v 50ah For Storage Energy / Car / Solar Light
1. 12V 50Ah deap cycle lithium batteries advantage
2. Specification
| NO. | Items | Criteria | Testing method | ||
| 1 | Rated Capacity | 50Ah | Rest for 1 hour after fully charged, then discharge with 0.33C current until the battery reaches the discharge cutoff voltage. Repeat above process for three times, if the discharge time is not less than 120 minutes, you can stop and define the Discharging current*time value (Ah) as battery capacity. | ||
| 2 | Minimum Capacity | 50Ah | |||
| 3 | Internal resistance | ≤40mΩ | 50% battery SOC state frequency of 1 KHZ ac resistance tester | ||
| Short circuit protection | Yes | Connect the positive and negative of this battery pack through a lead with the resistance less than 5mΩ. | |||
| 5 | Cycle life | ≥2000cycle | Discharge with the current of 0.33C until it can’t discharge, and then rest it for 1h. Charge the battery following CC(0.33C)/CV(14.6V) mode to full capacity, and then rest it for 1h. Repeat above process until full charged capacity is no more than 80% of normal value. Accumulated times is defined as cycle life. | ||
| 6 | Discharge Temperature | -20℃ | ≥70% | At 25±5℃ discharge the battery with the current of 0.33C to the cut-off voltage and record charge capacity. Store the battery at various temperatures for 2h and discharge the battery with 0.33C to the cut-off voltage. | |
| -0℃ | ≥80% | ||||
| 25℃ | ≥100% | ||||
| 55℃ | ≥95% | ||||
| 7 | Charge Retention ability | Residual | Charge the battery to full capacity and store it for 28days, and then discharge it with 0.33C to the cut-off voltage. | ||
| Recovery capacity≥90% | |||||
3. Protective circuit specification
| NO. | Items | Content | Specification |
| 1 | Over charge | Over-charge protection for each cell | 3.80±0.03V |
| Over-charge release for each cell | 3.60±0.05V | ||
| Over-charge release method | Under the release voltage | ||
| 2 | Over discharge | Over-discharge protection for each cell | 2.00±0.05V |
| Over-discharge release for each cell | 2.30±0.05V | ||
| Over-discharge release method | Charging recovery | ||
| 3 | Over current | Discharge over current protection | 170~220A |
| Protection delay time | 10~40ms | ||
| Over current release method | Release after cutoff the load. | ||
| 4 | Short | Yes. | Remove after the short circuit automatic recovery |
| 5 | Battery temperature | Charge over temperature | Protection @65±5℃ |
| Release @50±5℃ | |||
| Discharge over temperature | Protection @65±5℃ | ||
| Release @50±5℃ |
6. Application
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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