• 5.5V 0.22F Fully Sealed Supercapacitor, Anti-Aging Moistureproof Leakage-Free EDLC Capacitor for Small Electronic Equipment
  • 5.5V 0.22F Fully Sealed Supercapacitor, Anti-Aging Moistureproof Leakage-Free EDLC Capacitor for Small Electronic Equipment
  • 5.5V 0.22F Fully Sealed Supercapacitor, Anti-Aging Moistureproof Leakage-Free EDLC Capacitor for Small Electronic Equipment
  • 5.5V 0.22F Fully Sealed Supercapacitor, Anti-Aging Moistureproof Leakage-Free EDLC Capacitor for Small Electronic Equipment
  • 5.5V 0.22F Fully Sealed Supercapacitor, Anti-Aging Moistureproof Leakage-Free EDLC Capacitor for Small Electronic Equipment
  • 5.5V 0.22F Fully Sealed Supercapacitor, Anti-Aging Moistureproof Leakage-Free EDLC Capacitor for Small Electronic Equipment
  • 5.5V 0.22F Fully Sealed Supercapacitor, Anti-Aging Moistureproof Leakage-Free EDLC Capacitor for Small Electronic Equipment
  • 5.5V 0.22F Fully Sealed Supercapacitor, Anti-Aging Moistureproof Leakage-Free EDLC Capacitor for Small Electronic Equipment
  • 5.5V 0.22F Fully Sealed Supercapacitor, Anti-Aging Moistureproof Leakage-Free EDLC Capacitor for Small Electronic Equipment
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5.5V 0.22F Fully Sealed Supercapacitor, Anti-Aging Moistureproof Leakage-Free EDLC Capacitor for Small Electronic Equipment

  • BIGCAP
  • China
  • 3~4 weeks
  • 30K-50K Per Day
BIGCAP Full Sealed 0.22F 5.5V Supercapacitor 1.Fully sealed construction, leakage free, no electrolyte overflow 2.Excellent moisture-proof & waterproof performance, adapt to humid working environment 3.Good anti-aging property, long service life, stable capacitance in long-term use 4.High safety, resistant to high temperature, avoid bulging and swelling 5.Low internal resistance, fast charge & discharge, stable output voltage

BIGCAP 5.5V 0.22F Fully Sealed Supercapacitor

1.Fully sealed construction, leakage free, no electrolyte overflow

2.Excellent moisture-proof & waterproof performance, adapt to humid working environment

3.Good anti-aging property, long service life, stable capacitance in long-term use

4.High safety, resistant to high temperature, avoid bulging and swelling

5.Low internal resistance, fast charge & discharge, stable output voltage

6.Operating temperature: -40°C ~ +85°C

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BIGCAP 5.5V 2.5F Supercondenser Drawing and Images

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BIGCAP SERIES SUPERCONDENSER

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BCT Series Supercapacitor For -25°C to +85°C

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1.0F Supercapacitor

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0.1F Supercapacitor

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0.33F Supercapacitor

BGW Series Coin Cell Supercondenser-Full Sealed Leakage-Proof

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BGW 1.5F Ultra Thin Supercapacitor

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BGW 0.47F Ultra Thin Supercapacitor

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BGW 0.22F Ultra Thin Supercapacitor

BCE Series Supercapacitor (H,V,C Type)

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H-Type Supercapacitor

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V-Type Supercapacitor

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C-Type Supercapacitor

Combined Winding High Current Supercapacitor For -40℃~+85℃

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5.5V 1.0F Supercapacitor

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5.5V 2.5F Supercapacitor

Full Sealed Combined Supercapacitor, Leak-proof & Anti-aging

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1.5F 5.5V Supercapacitor

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2.5F 5.5V  Supercapacitor

Precision Potting Supercondenser, Leak-proof & Anti-aging

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Precision Potting Supercondenser

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Precision Potting Supercondenser 

Single Winding 2.7V/3.0V Supercapacitor

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0.5F Supercapacitor

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1.0F Supercapacitor

Large Capacitance 2.7V/3.0V Supercapacitor

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2.0F Supercapacitor

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150F Supercapacitor

BIGCAP Supercapacitor Module

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30V 5F BIGCAP Supercapacitor Module

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12V 25F BIGCAP Supercapacitor Module

Lithium-ion BIGCAP Supercapacitor with Large Capacitance

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100F Lithium-ion BIGCAP Supercapacitor

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Lithium-ion BIGCAP Supercapacitor

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COMPANY PROFILE

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Founded in 2013, Liaoning Brother Electronic Technology Co., Ltd. is a specialized manufacturer of BIGCAP supercapacitors. With 13 years of production experience and 26 years of deep technical know-how in the industry, we bring long-standing expertise to every product.

Our facility spans 12,000 square meters and features 8 production lines along with over 100 automated machines. We own more than 50 patents, and our annual output reaches nearly 100 million units. BIGCAP supercapacitors offer high capacitance, elevated power density, extended cycle life, and outstanding low-temperature performance.

Our patented encapsulated supercapacitor operates reliably for over 16 years. All products meet ISO9001, ISO14001, and RoHS requirements, and have received widespread recognition from clients around the globe.


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High-standard Workshop


Our workshop is a spotless and well-organized cleanroom, equipped with state-of-the-art automated assembly lines for BIGCAP supercapacitors. 

Fully self-operated machinery runs across the entire production cycle, ensuring consistent output, reliable quality, and high throughput. 

We strictly implement 6S management (Sort, Set in order, Shine, Standardize, Sustain, Safety), which keeps our workplace dust-free, tidy, and efficient — creating the ideal environment for precision manufacturing.

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COMPANY CULTURE

Through 13 years of rapid development, BROTHER has always embraced technological innovation. Our reliable product performance has earned wide favor among clients.

Guided by our corporate motto — Benevolence, Openness, Diligence and Ambition — our team presses forward courageously. We keep developing new products and exploring new applications, enabling the supercapacitor to deliver greater value in more industries.

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Annual Celebration

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Team-building Activity

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Care for Female Employees

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Clean and Tidy Office

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APPLICATION

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Supercapacitors are widely used across various industries due to their high power density, fast charging/discharging, long cycle life, and excellent low-temperature performance. 

Key applications include:supercapacitor capacity supercapacitor electrochemical supercapacitors skelcap ultracapacitor commercial supercapacitor

1. Transportation & Automotive

Regenerative braking systems in electric vehicles (EVs), hybrid vehicles, and public buses

Engine starting assistance for trucks, buses, and construction machinery

Backup power for electric vehicle door systems and emergency lighting

2. Consumer Electronicssupercapacitor capacity supercapacitor electrochemical supercapacitors skelcap ultracapacitor commercial supercapacitor

Power backup for smart meters, POS terminals, and wearable devices

Peak power assist in cameras, drones, and portable speakers

Memory backup in computers, TVs, and gaming consoles

3. Industrial Equipment

Uninterruptible power supplies (UPS) for data centers and factories

Energy storage for automated guided vehicles (AGVs) and cranes

Voltage stabilization for industrial drives and power grids

4. Renewable Energy & Smart Grid

Energy smoothing and storage for solar and wind power systems

Grid frequency regulation and peak load reduction

Power backup for smart grid monitoring devices

5. Medical Devices

Emergency power for ventilators, defibrillators, and infusion pumps

Portable medical equipment requiring fast charge and long life

6. Railway & Infrastructure

Train traction and braking energy recovery

Backup power for railway signaling and communication systems

Bridge and tunnel emergency systems

7. Smart Meters & IoT Devices

Power bridging during battery replacement

Reliable operation in extreme temperatures

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CERTIFICATES

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Patent Certificate:Labeled & Potted Supercapacitor

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Patent Certificate:Surface Mount Type Supercapacitor

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Patent Certificate:Supercapacitor Module

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Patent Certificate:Electrode Sheet for Supercapacitor

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ISO9001-2015

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ISO14001-2015

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REACH

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ROHS

PACKAGING

Paper Box Packing, Partitioned Paper Box Packing, Blister Tray Packing, Poly Bag Packing, K-Bend Tape & Reel, Radial Lead Tape & Reel, Axial Lead Tape & Reel

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SHIPPING

1.100% on-time delivery guaranteed.
→ We ensure a 100% on-schedule delivery rate for every order.


2.We support multiple shipping options including Air, Sea, Train and Express services (DHL, FedEx, TNT, UPS, EMS, SF).

→ A variety of logistics solutions are available, such as air freight, ocean shipping, rail transport, and courier services (DHL, FedEx, TNT, UPS, EMS, SF).


3.A dedicated after-sales hotline is available for you. We offer prompt response and solutions to all your inquiries.
→ You can reach us via a dedicated customer support line. We guarantee quick replies and effective resolutions to all your questions.


4.We conduct regular follow-up inspections to track product performance, identify potential issues early and ensure stable operation of the Supercapacitor.
→ Routine post-sale checks are carried out to monitor product behavior, detect any early signs of trouble, and maintain reliable supercapacitor performance.


5.Our experienced technical team possesses solid professional knowledge, ready to provide timely and precise technical support and solutions.
→ Backed by deep expertise, our skilled engineering team is always prepared to deliver fast and accurate technical assistance and problem-solving.

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FAQ

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Q: What is your minimum order quantity?

A: MOQ varies by stock levels. Standard items typically have a low MOQ, while customized products will be priced accordingly.


Q: Which shipping options are available?

A: We offer air freight, sea shipping, and express courier services.


Q: What payment terms do you accept?

A: Our primary payment method is T/T.


Q: Can you offer samples?

A: Free samples can be provided upon discussion; buyers are only responsible for the shipping cost.


Q: Are you a factory or a trading company?

A: We are a direct manufacturer with 13 years of expertise in both production and R&D.


Q: What packaging options do you have?

A: Standard packaging includes cartons, compartment boxes, blister trays, poly bags, and various tape-and-reel formats. Customized packaging is also welcome.

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Are You a Manufacturer or a Trader?

BIGCAP is a professional manufacturer of supercapacitor based in China. Established in 2013, BIGCAP has grown steadily over decade years. With plant area of 12000 square meters, expanding our operations and diversifying our product range over 300 series. Today, we have a strong presence in both domestic and international markets, serving customers in over 50 countries.

What are the advantages of supercapacitor?

1. Fast charging and discharging time; 2. Long Cycle life over 500,000 times; 3. High power density; 4. Wide temperature range:-25℃~+85℃; 5. Low maintenance; 6. Environmentally friendly. 7.Comply with REACH & ROHS Satandard

if free samples available?

We offer 10 pcs free samples per series for your evaluation and the buyer cover the express cost.

What's your product?

BIGCAP produce supercapacitor, also known as ultracapacitor or double-layer capacitor, is an energy storage device that can store and release energy much faster than a conventional battery. BIGCAP mainly produce Coin type/ Winding Type,/ Modules Type/ Lithiun Ion Type and Hybrid Type Supercapacitor.

What application can Supercapacitor be used?

From Smart Meter(Electric Meter/ Water Meter/ Gas Meter), Microgrid, Rail Transit, New Energy(Wind Energy/ Solar Energy), Electric Vehicles, Medical Equipment, UPS, Energy Harvesting Systems, Industrial Power Backup, our products can be used in various industries and applications.

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