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 |
| Material | Lifepo4 |
| Nominal Voltage | 12.8V |
| Normal Capacity | 20Ah |
| Communication function | Bluetooth |
| Constant discharge current | 30A |
| Pulse current | 55A(3s) |
| Recommended charge current | ≤10A |
| Warranty | 2 years |
| Brand Name | Topband |
| Model Number | TB-BL1220F-S115D |
| Certification | CE, UN38.3, ISO9001, ISO14001 |
| 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 |
| Material | Lifepo4 | Nominal Voltage | 12.8V |
| Normal Capacity | 20Ah | Communication function | Bluetooth |
| Constant discharge current | 30A | Pulse current | 55A(3s) |
| Recommended charge current | ≤10A | Warranty | 2 years |
| Brand Name | Topband | Model Number | TB-BL1220F-S115D |
| Certification | CE, UN38.3, ISO9001, ISO14001 | Place of Origin | China |
| High Light | Rv Lithium Battery ，Lithium Phosphate Battery | ||
1. Smart Lithium battery 12V 20Ah Specification
| 1 | Nominal Voltage | 12.8V | |
| 2 | Normal Capacity | 20Ah | |
| 3 | Internal Resistance | ≤50mΩ | |
| 4 | Series application | Not allowed | |
| 5 | Communication function | Bluetooth | |
| 6 | Operation temperature range @charging | 0~45℃ | |
| 7 | Standard charge voltage | 14.6±0.1V | |
| 8 | Float charge voltage(for Standby use) | 13.9±0.1V | |
| 9 | Allowed MAX charge current | 20A | |
| 10 | Recommended charge current | ≤10A | |
| 12 | Output Voltage Range | 8.0~14.6V | |
| 13 | Allowed MAX discharge current | 20A | |
| 14 | Pulse discharge current | 55A withstand 3s | |
| 15 | Discharge Cut-off voltage | 8.0V | |
| 16 | Dimension | Length 181±2mm | |
| Width 76±2mm | |||
| Height 165±2mm | |||
| 17 | Weight | Approx. 3.0Kg | |
| 18 | Storage Temperature & Humidity Range | Short: within 1 month | -20~35℃, 45~75%RH |
| Long term: above 1 month | 10~30℃, 45~75%RH | ||
| 19 | Self-discharge rate | Residual capacity | ≤3% per month; ≤15% per year |
| Reversible capacity | ≤1.5%per month; ≤8% per year | ||
2. Smart Lithium battery 12V 20Ah dimension
3. Electrical Characteristics & Test Condition
@Testing Conditions: Ambient Temperature: 25±5℃; Huminity:45%~75%.
| 1 | Internal Impedance | ≤50mΩ | Test the internal resistance of 50% SOC battery pack with 1 kHz AC internal resistance test instrument. | |
| 2 | Capacity | ≥20Ah | 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 180 minutes, you can stop and define the Discharging current*time value (Ah) as battery capacity. | |
| 3 |
Short circuit protection | Automatically cutoff discharging when short circuit, and release after remove the lead. | Connect the positive and negative of this battery pack through a lead with the resistance less than 5mΩ. | |
| 4 | MAX charge Current | 20A | Charging with this current for more than 0.5h and the added temperature of battery pack less than 20℃. | |
| 5 | MAX discharge Current | 30A | Discharging with this current for more than 0.5h and the added temperature of battery pack less than 35℃. | |
| 6 |
Cycle life (DOD%100) | ≥2000cycle | Discharge with the current of 0.5C 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. | |
| 7 |
Discharge Temperature Characteristics | -20℃ | ≥70% | At 25±5℃ discharge the battery with the current of 0.33C to the cut-off voltage. Store the battery at various temperatures for 2h and discharge the battery with 0.33C to the cut-off voltage. Record the ratio between discharging & charging capacity. |
| 0℃ | ≥80% | |||
| 25℃ | 100% | |||
| 55℃ | ≥95% | |||
| 8 | Charge Retention ability | remain capacity≥90% | Charge the battery to full capacity and store it for 28days, and then discharge it with 0.33C to the cut-off voltage. | |
4. Product feature
Perfect replacement for VRLA battery
5. Bluetooth Function
6. Typical 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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