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3U Rack Telecom Battery 48V 50Ah LiFePO4 Battery High Safety For Base Station
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Brand Name:Topband
Model Number:TB4850F-T110D
Certification:MSDS
Price:Negotiable
Payment Terms:L/C, T/T
Supply Ability:450 Mwh / Year
Delivery Time:2~3 weeks for sample, 4~6 weeks for bulk order after payment
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
3U Rack Telecoms Backup Batteries 48V 50Ah Lifepo4 Battery for Base Station
About us
We Topband Battery is an expert manufacturing of LiFePO4 battery since founded 2006.
-over 600 R & D engineers and about 6,000 experienced workers
-occupies 100,000 square meters Topband industrial park.
We can provide One-Stop Solution globally in the field of renewable energy, from cell, BMS/PCM to battery pack assembling.
1. General Information
This specification defines the performance of 3U Rack Telecoms Backup Batteries 48V 50Ah LiFePO4 Battery manufactured by TOPBAND, describes the type, performance, technical characteristics, warning and caution of the battery pack.
2. Battery Specification(@ 25±5℃ (68℉~86℉)
| NO | Items | Characteristics | |
| 2.1 | Normal capacity | 50Ah | |
| 2.2 | Nominal energy | 2.4KWh(15S) | |
| 2.3 | Nominal voltage | 48V(15S) | |
| 2.4 | Internal resistance | ≤50mΩ @1kHz AC | |
| 2.5 | Normal charge voltage | 54.75±0.3V(15S) | |
| 2.6 | Float charge voltage(for Standby use) | 51.75±0.3V(15S) | |
| 2.7 | Allowed MAX charge current | 50A | |
| 2.8 | Recommended charge current | ≤25A | |
| 2.9 | Allowed MAX discharge current | 50A | |
2.10 | End of discharge voltage | 37.5V(15S) | |
| 2.11 | Dimension | Length 482±2 mm | |
| height 133±2 mm | |||
| Depth 360±2 mm | |||
| 2.12 | Weight | Approx. 30kg | |
| 2.13 | Working temperature | Charge | 0～45℃ |
| Discharge | -20～60 | ||
| 2.14 | Self-discharge rate | Residual capacity | ≤2%/Month; ≤10%/ year |
| Recover capacity | ≤1%/Month; ≤6%/ year | ||
| 2.15 | Storage environment | ≤1month | -20～35℃ , 45～75%RH |
| ≥3month | -10～35℃, 45～75%RH | ||
| Recommend environment | 15～30℃ , 45～75%RH | ||
3. Electrical Characteristics & Test Condition
Testing Conditions: Ambient Temperature: 25±5℃ (68℉~86℉); Huminity:45%~75%.
Normal charge:Charge battery under CC(0.33C)/CV(58.4V) mode until over charge protection or the charge current reduce to 0.05C, and then rest for 1h.
| NO | Items | Criterion | Condition | |
| 3.1 | Normal Capacity | 50Ah | After Normal charge, discharge @0.33C current to the end of discharge voltage. | |
| 3.2 | Internal Impedance | ≤50mΩ | @50% SOC @1kHz AC internal resistance test instrument. | |
| 3.3 | 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. | |
| 3.4 | 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. | |
| 3.5 | @0.33C Discharge temperature characteristic@0.33C | -20℃ (-4℉) | ≥70% | Capacity @specified temperature Capacity @ 25℃ (77℉) |
| 0℃ (32℉) | ≥80% | |||
| 25℃ (77℉) | ≥100% | |||
| 55℃ (131℉) | ≥95% | |||
| 3.6 | Capacity retention rate | remain capacity ≥96% | After normal charge, store the battery @25±5℃ (68℉~86℉) for 28days, then discharge capacity @0.33C,the retention capacity accord with criterion. | |
4. Circuit Protection
The batteries are supplied with a LiFePO4 Battery Management System (BMS)that can monitor and optimized each single prismatic cell during charge & discharge, to protect the battery pack overcharge, over discharge, short circuit. Overall, the BMS helps to ensure safe and accurate running.
| No | Item | Content | Criterion |
| 4.1 | Over charge | Over-charge warning for each cell | 3.60±0.03V |
| Over-charge protection for each cell | 3.70±0.03V | ||
| Over-charge release for each cell | 3.38±0.05V | ||
| Over-charge release method | Under the release voltage | ||
| 4.2 | Over discharge | Over-discharge warning for each cell | 2.80±0.05V |
| Over-discharge protection each cell | 2.50±0.05V | ||
| Over-discharge release for each cell | 2.90±0.10V | ||
| Over-discharge release method | Charging | ||
| 4.3 | Over current | Charge over current warning | 55±3A |
| Charge over current protection | 60A±3A | ||
| Charge over current release | Discharge or auto release after 1min | ||
| Discharge over current warning | 55±3A | ||
| Discharge over current protection | 60A±3A | ||
| Discharge over current release | Charge or auto release after 1min | ||
| Short circuit protection | Available | ||
| 4.4 | Temperature | Charge over temperature protection | Protect@55±3℃; Release@50±3℃; |
| Charge under temperature protection | Protect@0±3℃; Release@5±3℃ | ||
| Discharge over temperature protection | Protect@65±3℃; Release@60±3℃; | ||
| Discharge under temperature protection | Protect@-20±3℃; Release@-15±3℃; |
5. User guide
5.1 TB48XXF-T110X Operation principle and Wiring hint
Input AC 220V, after rectification power module, output DC 48V. When the power grid normal, the battery will supply power according to system requirement, and to be charged at same time; when power off, the battery will supply energy, to make sure the DC power system working normally, to realize uninterruptible power supply. The power supply has second disconnection function, when the battery voltage is low, the battery output would be cut off to protect battery.
5.2 Installation Drawing
Case dimension: 482(Width) * 360(Depth) * 133(height) mm；
Handle Depth:35mm; weight:Approx.28kg.
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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