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Shenzhen Topband Battery Co., Ltd
A professional manufacturer of LiFePO4 battery / lithium iron phosphate, dedicated to designing, researching, manufacturing, and exporting LiFePO4 batteries( cell & pack & energy storage system) to
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3U Rack Telecom Battery 48V 50Ah LiFePO4 Battery High Safety For Base Station

3U Rack Telecom Battery 48V 50Ah LiFePO4 Battery High Safety For Base Station

Brand Name : Topband
Model Number : TB4850F-T110D
Certification : MSDS
Place of Origin : Guangdong, China
MOQ : 50 Pcs
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
Packaging Details : standard export carton for Telecoms Backup Batteries 48V 50Ah
Name : Telecoms Backup Batteries 48V 50Ah
Nominal Capacity : 50AH
Type : LiFePO4
Nominal voltage : 48V(15S)
Max charge current : 50A
Max discharge current : 50A
Working Temperature : -20~60℃
Feature : Telecommuniation base centre
Dimension : 482*133*360mm
Weight : 30KG (61.7Ib)
Resistance : 48V(15S)
EDV : 37.5V(15S)
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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℉)

2.1Normal capacity50Ah
2.2Nominal energy2.4KWh(15S)
2.3Nominal voltage48V(15S)
2.4Internal resistance≤50mΩ @1kHz AC
2.5Normal charge voltage54.75±0.3V(15S)
2.6Float charge voltage(for Standby use)51.75±0.3V(15S)
2.7Allowed MAX charge current50A
2.8Recommended charge current≤25A
2.9Allowed MAX discharge current50A


End of discharge voltage37.5V(15S)
2.11DimensionLength 482±2 mm
height 133±2 mm
Depth 360±2 mm
2.12WeightApprox. 30kg
2.13Working temperatureCharge0~45℃
2.14Self-discharge rateResidual capacity≤2%/Month; ≤10%/ year
Recover capacity≤1%/Month; ≤6%/ year
2.15Storage environment≤1month-20~35℃ , 45~75%RH
≥3month-10~35℃, 45~75%RH
Recommend environment15~30℃ , 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.

3.1Normal Capacity50AhAfter Normal charge, discharge @0.33C current to the end of discharge voltage.
3.2Internal Impedance≤50mΩ@50% SOC @1kHz AC internal resistance test instrument.
3.3Short circuit protectionAuto cutoff load when short circuitConnect the positive and negative of this battery pack through a lead with 0.1Ω resistance.
3.4Cycle life @DOD100%≥2000 cyclesAfter Normal charge,discharge @0.33C current to the end of discharge voltage. Repeat above process until discharge capacity reduce to 80% of initial value.


Discharge temperature


-20℃ (-4)≥70%

Capacity @specified temperature

Capacity @ 25℃ (77)

0℃ (32)≥80%
25℃ (77)≥100%
55℃ (131)≥95%
3.6Capacity retention rate

remain capacity


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.

4.1Over chargeOver-charge warning for each cell3.60±0.03V
Over-charge protection for each cell3.70±0.03V
Over-charge release for each cell3.38±0.05V
Over-charge release methodUnder the release voltage
4.2Over dischargeOver-discharge warning for each cell2.80±0.05V
Over-discharge protection each cell2.50±0.05V
Over-discharge release for each cell2.90±0.10V
Over-discharge release methodCharging
4.3Over currentCharge over current warning55±3A
Charge over current protection60A±3A
Charge over current releaseDischarge or auto release after 1min
Discharge over current warning55±3A
Discharge over current protection60A±3A
Discharge over current releaseCharge or auto release after 1min
Short circuit protectionAvailable
4.4TemperatureCharge over temperature protectionProtect@55±3℃; Release@50±3℃;
Charge under temperature protectionProtect@0±3℃; Release@5±3℃
Discharge over temperature protectionProtect@65±3℃; Release@60±3℃;
Discharge under temperature protectionProtect@-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.

Telecoms Backup Batteries 48V 50Ah

5.2 Installation Drawing

Case dimension: 482(Width) * 360(Depth) * 133(height) mm;

Handle Depth:35mm; weight:Approx.28kg.

Telecoms Backup Batteries 48V 50Ah

Product Tags:

lithium ion battery for telecom application


telecom battery backup systems

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