Shenzhen Topband Battery Co., Ltd
| Payment Terms | T/T, L/C |
| Supply Ability | 1Gwh/year |
| Delivery Time | 2~4 weeks for samples; 4~6 weeks for mass production |
| Packaging Details | standard export carton |
| Rated voltage | 25.6V |
| Rated capacity | 50Ah |
| Normal charge voltage | 29.2±0.2V |
| Max charge current | 50A |
| Allowed Max discharge current | 50A |
| Internal resistance | ≤30mΩ |
| Dimension | 318*165*215mm |
| Operating temperature | -20~60℃ |
| Weight | 12.5kg |
| End of discharge voltage | 16-20V |
| Brand Name | Topband |
| Model Number | TB-BL2450F-M110B_00 |
| Certification | MSDS, ISO9001, ISO14001 |
| Place of Origin | China Mainland |
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Product Specification
| Payment Terms | T/T, L/C | Supply Ability | 1Gwh/year |
| Delivery Time | 2~4 weeks for samples; 4~6 weeks for mass production | Packaging Details | standard export carton |
| Rated voltage | 25.6V | Rated capacity | 50Ah |
| Normal charge voltage | 29.2±0.2V | Max charge current | 50A |
| Allowed Max discharge current | 50A | Internal resistance | ≤30mΩ |
| Dimension | 318*165*215mm | Operating temperature | -20~60℃ |
| Weight | 12.5kg | End of discharge voltage | 16-20V |
| Brand Name | Topband | Model Number | TB-BL2450F-M110B_00 |
| Certification | MSDS, ISO9001, ISO14001 | Place of Origin | China Mainland |
| High Light | Lithium Smart Battery ，Lithium Phosphate Battery | ||
Bluetooth Lithium Battery 24V50Ah RV Lithium Battery Deep Cycle Golf Cart Battery
1. About us
Shenzhen Topband Battery Co., Ltd, a company professional to do LiFePO4 battery, which is founded in 1996 and listed in Shenzhen in 2007. There are over 300 R&D engineers and about 3,000 employees in the 70,000 square meters Topband industrial park. We can provide One -Stop Solution of new energy, from cell, BMS/PCM to battery pack assembling.
This rechargeable LiFePO4 battery pack TB-BL2450F-M110B_00 supports Bluetooth communication function. Through Android and IOS APP, can read the battery status and information. Especially due to the Android system’s openness, different smart phone manufacturer will have their own different Bluetooth hardware version and customized feature Android systems. It is necessary for the customer to confirm whether the phone is compatible for the APP.
2.Detailed specification
| NO | Items | Characteristics | |
| 2.1 | Normal capacity | 50Ah | |
| 2.2 | Nominal energy | 1.28KWh | |
| 2.3 | Nominal voltage | 25.6V | |
| 2.4 | Internal resistance | ≤30mΩ @1kHz AC | |
| 2.5 | Normal charge voltage | 29.2±0.2V | |
| 2.6 | Float charge voltage(for Standby use) | 27.6±0.2V | |
| 2.7 | Allowed MAX charge current | 50A@Initial temperature 25±5℃ | |
| 2.8 | Recommended charge current | ≤ 25A | |
| 2.9 | Allowed MAX discharge current | 50A(30mins)@Initial temperature 25±5℃ | |
| 2.10 | End of discharge voltage | 16～20V | |
| 2.11 | Pulse discharge current | Withstand the 150A/3S | |
| 2.12 | Dimension | Length 318 ±2 mm | |
| Width 165 ±2 mm | |||
| Height 215 ±2 mm | |||
| 2.13 | Weight (No accessories) | About: 12.5±0.5 Kg | |
| 2.14 | Operation temperature | Charge | 0～45℃ |
| Discharge | -20～60℃ | ||
| 2.15 | Self-discharge rate | Residual capacity | ≤3%/Month; ≤15%/ year |
| Recover capacity | ≤1.5%/Month; ≤8%/ year | ||
| 2.16 | Storage environment | ≤1month | -20～+60℃,5～75%RH |
| ≥3month | -10～+45℃,5～75%RH | ||
| Recommend environment | 15～35℃,5～75%RH | ||
3. Test conditions
Testing Conditions: Ambient Temperature: 25±5℃; Huminity:45%~75%.
Normal charge:Charge battery under CC(0.33C)/CV(43.8V) mode until over charge protection or the charge current reduce to 0.05C, and then rest for 1h.
4. Product Performance
| No | Item | Content | Criterion |
| 4.1 | Over charge | Over-charge protection for each cell | 3.75±0.05V |
| Over-charge release for each cell | 3.60±0.04V | ||
| Over-charge release method | Under the release voltage | ||
| 4.2 | Over discharge | Over-discharge protection each cell | 2.50±0.05V |
| Over-discharge release for each cell | 2.80±0.05V | ||
| Over-discharge release method | Charging | ||
| 4.3 | Over current | Discharge over current protection | 60±5A,delay time /28~32s 180±20A,delay time /1.8~2.2s |
| Discharge over current release | Charge or auto release after30S | ||
| Short circuit protection | 320A 200~500uS | ||
| 4.4 | Temperature | Charge over temperature protection | Protect@55±5℃; Release@45±5℃; |
| Charge under temperature protection | Protect@-10±5℃; Release@0±5℃ | ||
| Discharge over temperature protection | Protect@65±5℃; Release@55±5℃; | ||
| Discharge under temperature protection | Reserve | ||
| MOSFET over temperature protection | Protect@100±10℃; Release@70±10℃; |
5.Dimension drawing
6. Bluetooth introduction
Topband Bluetooth is a technology that allows users to connect Topband battery directly with their mobile phones. Users can use Bluetooth to get the information( Such as the SOC, operating temperature, cycle times, voltage, capacity, etc) of the battery clearly.
Setting up the connection between the battery and the phone is quick and easy. Users just need to download the TB APP from Google play/ APP store, and operate it near the battery. The interface of the APP can be also customized if needed.
Compared to the other communication ways, it is wireless and of high security, which makes Bluetooth become more and more porpular among the world.
If any interest, do not be hesitate to contact with us! We will offer professional service to our customers!
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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