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LiFePO4 Telecom Battery with 3U Pack , Home Battery Backup System

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Buy cheap LiFePO4 Telecom Battery with 3U Pack , Home Battery Backup System from wholesalers
  • Buy cheap LiFePO4 Telecom Battery with 3U Pack , Home Battery Backup System from wholesalers

LiFePO4 Telecom Battery with 3U Pack , Home Battery Backup System

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Brand Name:Topband
Model Number:TB4850F-T110C
Certification:MSDS,CE
Supply Ability:450Mwh/year
Delivery Time:2~4weeks for samples; 4~6weeks for mass production
Price:Negotiable
Payment Terms:L/C, T/T
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

LiFePO4 Home Battery Backup System , Telecom Battery , 3U Pack


1. General Information

This specification defines the performance of rechargeable LiFePO4 battery pack TB4850F-T110C manufactured by Shenzhen Topband Battery Co., Ltd, describes the type, performance, technical characteristics, warning and caution of the battery pack.


2. Specification

NOItemsDescription
Normal Specification
1Nominal Voltage51.2V
2Normal Capacity50Ah
3Internal Resistance≤60mΩ
Standard Charge
4Battery operation temperature range @charging0~45℃
5Normal charge voltage58.4±0.2V
6Recommended float charge voltage(for Standby use)55.2±0.2V
7Recommended charge current≤25A @Battery initial Temp 25±5℃
8Allowed MAX charge current50A @Battery initial Temp 25±5℃
Standard Discharge
9Battery operation temperature range @discharging-20~60℃
10Output Voltage Range40.0~58.4V
11Allowed discharge current50A withstand 30min @Battery initial Temp 25±5℃
12Pulse discharge current100A withstand 3s
13Discharge Cut-off voltage32.0V
Mechanical Characteristics
14DimensionLength 425±3mm
Width 482±3mm
Height 133.2±3mm
15WeightApprox. 30.5±0.2 Kg
Storage
16Storage Temperature & Humidity RangeShort: within one month-20~35℃, 45~75%RH
Long term: above one month-10~30℃, 45~75%RH
17Self-discharge rateResidual capacity≤3% per month; ≤15% per year
Reversible capacity≤1.5%per month; ≤8% per year

3. Electrical Characteristics & Test Condition

Testing Conditions: Ambient Temperature: 25±5℃; Huminity:45%~75%.


NOItemsCriterionCondition
1Internal Impedance≤60mΩTest the internal resistance of 50% SOC battery pack with 1 kHz AC internal resistance test instrument.
2Capacity≥50AhRest 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.
3Short circuit protection/Not allowed.
4MAX charge Current50ACharging with this current for more than 0.5h and the added temperature of battery pack less than 20℃.
5MAX discharge Current50ADischarging with this current for more than 0.5h and the added temperature of battery pack less than 35℃.
6

Cycle life (DOD%100)

≥1200cycleDischarge 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%
8Charge Retention abilityremain 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. 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.

Test itemContentCriterion
Over chargeOver-charge protection for each cell3.90±0.03V
Over-charge release for each cell3.60±0.05V
Over-charge release methodUnder the release voltage
Over dischargeOver-discharge protection for each cell2.30±0.05V
Over-discharge release for each cell2.80±0.05V
Over-discharge release methodCharging
Over currentDischarge over current protection400±50A
Protection delay time50~200ms
Over current release methodRelease after 30s.

Over & Lower

Temperature

Battery charge/discharge over temperatureProtection @65±5℃
Release @55±5℃
Battery charge lower temperatureProtection @-5±5℃
Release @5±0℃

5. Dimensional Drawing

LiFePO4 Telecom Battery with 3U Pack , Home Battery Backup System

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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