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BMS 2.4kWh 1kHz 48V 50Ah 3U Ups Backup Battery TB4850F-T110
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Brand Name:Topband
Model Number:TB4850F-T110
Certification:CE, TUV, UL, UN38.3, etc.
Price:Negotiable
Payment Terms:L/C, T/T
Supply Ability:1GWH/year
Delivery Time:10-40 days
Company Data
Active Member
Contact Person
Jerry Yang
Business Type:
86-755-27651888-3215
Business Type:
Manufacturer Exporter
Officials:
Topband Industry Park,Tangtou Town,Bao'an District,Sheznzhen,China
Quality:
Quality Certifitation Available
Product Details
Company Profile
Product Details
48V 50Ah 3U Telecom Batteries, back up lithium ion battery
1. Specifications:
| NO | Items | Characteristics | |
| 1.1 | Normal capacity | 50Ah | |
| 1.2 | Nominal energy | 2.4kWh | |
| 1.3 | Nominal voltage | 48V (LFP-15S) | |
| 1.4 | Internal resistance | ≤50mΩ @1kHz AC | |
| 1.5 | Normal charge voltage | 57.00±0.3V | |
| 1.6 | Float charge voltage(for Standby use) | 51.75±0.3V | |
| 1.7 | Allowed MAX charge current | 25A | |
| 1.8 | Recommended charge current | 25A | |
| 1.11 | Allowed MAX discharge current | 50A | |
| 1.12 | End of discharge voltage | 37.5V | |
| 1.13 | Dimension | Width 482.6±5 mm(internal 442±5mm) | |
| Height 133.2±3 mm | |||
| Depth 477±5 mm | |||
| 1.14 | Weight (No accessories) | Approx. 28.0Kg | |
| 1.15 | Operation temperature | Charge | 0～45℃ |
| Discharge | -20～60℃ | ||
| 1.16 | Self-discharge rate | Residual capacity | ≤3%/Month; ≤15%/ year |
| Recover capacity | ≤1.5%/Month; ≤8%/ year | ||
| 1.17 | Storage environment | ≤1month | -20～+60℃,5～75%RH |
| ≥3month | -10～+45℃,5～75%RH | ||
| Recommend environment | 15～35℃,5～75%RH | ||
2. Electrical Characteristics & Test Condition
Testing Conditions: Ambient Temperature: 25±5℃; Humidity:45%~75%.
Normal charge:Charge battery under CC(0.33C)/CV(54.8V) mode until
over charge protection or the charge current reduce to 0.02C, and
then rest for 1h.
| NO | Items | Criterion | Condition | |||
| 2.1 | Normal Capacity | 50Ah | After Normal charge, discharge @0.5C current to the end of discharge voltage. | |||
| 2.2 | Internal Impedance | ≤50mΩ | @50% SOC @1kHz AC internal resistance test instrument. | |||
| 2.3 | Short circuit protection | Auto cutoff load when short circuit | Connect the positive and negative of this battery pack through a lead with 0.1Ω resistance. | |||
| 2.4 | Cycle life @DOD100% | ≥2000 cycles | After Normal charge,discharge @0.33C current to the end of discharge voltage. Repeat above process until discharge capacity reduce to 80% of initial value. | |||
| 2.5 | Discharge temperature characteristic@0.2C | -20℃(6h) | ≥60% |
Capacity @specified temperature
| ||
| 0℃(6h) | ≥80% | |||||
| 25℃(4h) | ≥100% | |||||
| 55℃(4h) | ≥95% | |||||
| 2.6 | Capacity retention rate | remain capacity ≥96% | After normal charge, store the battery @25±5℃ for 28days, then discharge capacity @0.2C,the retention capacity accord with criterion. | |||
3. Operation instruction
- Charge and discharge voltage: shall not exceed the maximum limit voltage specified in the specification
- Charging and discharging temperature: the charging temperature of the battery must be in accordance with the temperature range specified in the specification
- Charging sequence: charging by constant current before constant voltage. There is a danger if the battery is charged upside down.
Special note:
A short time of overcharging and over-discharging will not affect
the use of the battery, but a long time of over-discharging or
overcharging will affect the functional failure of the battery, or
the battery is permanently unable to use, serious safety risks,
need for a long time floating charge, please use the specification
recommended floating charging mode. When the battery is not used
for a long time, the self-discharge characteristics of the battery
will also lead to over-discharge. In order to prevent the
occurrence of over-discharge, the battery should maintain a certain
amount of electricity and maintain its voltage at 50% SOC state.
Packaging & Shipping
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 Profile
Shenzhen Topband Battery Co., Ltd
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 core technology and has become one of the leading suppliers of lithium battery solutions in China, focusing on nano lithium iron phosphate/ LiFePO4 technology for EV, RV/ caravan, marine, motorcycle, golf cart / trolly, UPS, solar storage, medical, floor scrubber, industrial, commercial use, etc.
Smart Bluetooth & WIFI connection is is our patent
feature, equipped with IOS & Android app to
monitor the instant battery status (SOC, OCV, charge
current, ambient temperature, and errors included).
Topband has more than 5000 staffs, covers an area of 100,000 square meters. And large production plants are mainly located at Shenzhen and Huizhou
Our R&D team of over 300 professionals, in cooperation with Tsinghua Research Institute and Harbin Industrial University have laid a firm foundation of our leading technology.
We have got the certificates of ISO9001, ISO14001, OHSAS18001, TS16949 and UL, CE, CB, UN38.3, TUV, etc.
Topband is a Hi-tech enterprise. Since the company established, with innovation, we have committed ourselves to making people’s lives more comfortable and high-efficient. We and our companions are working hard at making technology progress to let people enjoy the changes of new technology.
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