Advantages of Full Sealed Low ESR Supercapacitor 5.5V Coin Cell Supercaps
1.Circular ring structure
The Low ESR Supercapacitor adopts integrated ring-style structure, delivering solid build quality and greatly boosting operational stability and dependability.
2.RoHS environmental compliance
5.5V Coin Cell Supercaps in series contain no harmful substances such as cadmium and lead, fully meeting international environmental protection standards.
3.Durable long-cycle charging capability
This series of Low ESR Supercapacitors consistently maintains steady performance even during long-duration repeated charging use.
4.Ultra-low self-leakage current
BIGCAP 5.5V Coin Cell Supercaps in series are perfectly suited for clock circuit data preservation and emergency backup power supply scenarios.
5.Broad temperature adaptability
These Low ESR Supercapacitor work stably in a temperature range from -40°C up to +70°C.
6.Totally enclosed hermetic design
Our 5.5V Coin Cell Supercaps in series feature fully sealed structure with excellent protection against moisture intrusion, electrolyte seepage and service aging, thus achieving longer service life.
Pictures of Full Sealed Low ESR Supercapacitor 5.5V Coin Cell Supercaps










BIGCAP Coin Cell Supercaps In Series
BCT Coin Cell Supercaps For -25°C to +85°C
1.0F Coin Cell Supercaps In Series
0.1F Coin Cell Supercaps In Series
0.33F Coin Cell Supercaps In Series
BCE Coin Cell Supercaps (C,H,V Type)
H-Type Coin Cell Supercaps In Series
V-Type Coin Cell Supercaps In Series
C-Type Coin Cell Supercaps In Series
BGW Coin Cell Supercaps-Full Sealed Leakage-Proof
BGW 1.5F Coin Cell Supercaps
BGW 0.47F Coin Cell Supercaps
BGW 0.22F Coin Cell Supercaps
| Model | Voltage(V) | Capacitance(F) | AC@1kHz(Ω) | DC(Ω) | L±1.0(mm) | H±1.0(mm) | h1±0.5(mm) | L1±0.1(mm) | L2±0.1(mm) |
| BGW5R5V155FASW | 5.5 | 1.5 | 10 | 15 | 20.8 | 21.7 | 3.5 | 1.0 | 1.0 |
| BGW5R5V155FCSW | 5.5 | 1.5 | 10 | 15 | 20.8 | 21.7 | 3.5 | 1.0 | 1.4 |
| BGW5R5V155FDSW | 5.5 | 1.5 | 10 | 15 | 20.8 | 21.7 | 3.5 | 1.0 | 2.0 |
The specifications are for reference only.
Please advise your required product specifications, so we can recommend suitable items and provide the corresponding official datasheet.
BIGCAP OTHER SUPERCAPS SERIES
Combined Winding Supercaps In Series For -40℃~+85℃
5.5V 0.22F Supercaps In Series
5.5V 1.0F Supercaps In Series
Full Sealed Combined Supercaps In Series, Leak-proof & Anti-aging
5.5V 1.5F Supercaps In Series
5.5V 2.5F Supercaps In Series
Precision Potting Low ESR Supercapacitor, Leak-proof & Anti-aging
Precision Potting Supercapacitor
Precision Potting Supercapacitor
Single Winding 2.7V/3.0V Low ESR Supercapacitor
0.5F Supercapacitor
1.0F Supercapacitor
Large Capacitance 2.7V/3.0V Supercapacitor
3.0V 2.0F Supercapacitor
2.7V 150F/470F/500F Supercapacitor
BIGCAP Supercapacitor Module
12.5V 2F Supercapacitor Module
12V 25F Supercapacitor Module
Lithium-ion Supercapacitor with Large Capacitance
100F Lithium-ion Supercapacitor
Lithium-ion Supercapacitor
BIGCAP Supercapacitor Typical Applications

1.Industrial Supercaps Systems: Smart grid buffers, IoT sensor networks.
2.Renewable Energy Storage: Solar/wind EDLC arrays for load balancing.
3.Transportation: Regenerative braking in EVs, hybrid engine support.
4.High-Stress Environments: Robotics, aerospace power backup.
Company Profile
Liaoning Brother Electronic Technology Co., Ltd. was founded in April 2013. Boasting 26 years of technical accumulation and 13 years of focused development, we are dedicated to the R&D, design, production and global sales of BIGCAP Low ESR Supercapacitor, including mainstream Coin Cell Supercaps.
We have a workforce of about 300 employees, including 10 senior professional technical engineers. Our production base covers 12,000 square meters, equipped with 8 complete production lines and nearly 100 automated processing equipment. We own more than 50 authorized patents, with an annual output capacity of nearly 100 million supercapacitor.
Our Low ESR Supercapacitor enjoy remarkable overall performance in the industry, with merits of high capacitance, high power density, excellent charge-discharge efficiency, ultra-long cycle life, stable low temperature resistance and eco-friendly zero pollution.
Our full product range includes wound single-cell type, wound combined type, precision potting type, coin cell supercaps, module type and lithium-ion hybrid types.
Our self-developed potting-type Low ESR Supercapacitor are patented exclusive products with great durability and high stability, supporting a service life of more than 16 years.
We have passed ISO9001:2015 Quality Management System and ISO14001:2015 Environmental Management System certification, and hold numerous national invention and utility model patents in this field. All BIGCAP Low ESR Supercapacitor and Coin Cell Supercaps fully comply with EU RoHS standards. Our supercapacitors are sold all over the world and have won wide recognition and good reputation from global clients.

CERTIFICATES
RoHs
REACH
ISO14001-2015
ISO9001-2015
Supercapacitor Patent Certificate
Supercapacitor Patent Certificate
Supercaps Usage Guidelines
⚠️ Critical Notes
Polarity: Short-term reverse polarity is tolerable but avoid prolonged use.
Charging: Use DC voltage ≤5.5V; limit current/power for optimal lifespan.
Installation: Avoid PCB traces contacting capacitor terminals. Solder at ≤260°C for ≤5s.
Storage: 15–35°C, 40–70%RH. Keep away from organic solvents.
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

SHIPPING
1.100% on-time delivery guaranteed.
2.We support air, sea, rail and mainstream express delivery.
3.Professional after-sales service available for timely problem solving.
4.Regular product follow-up checks ensure stable use.
5.Experienced tech team provides professional guidance and custom solutions.

FAQ
1.Q: What's your MOQ?
A: Our MOQ is determined by stock availability. For standard models, the MOQ is small. For non-standard products, the MOQ will be set based on actual conditions.
2.Q: What shipping methods do you offer?
A: We support air freight, sea freight, and express delivery.
3.Q: What are your payment terms?
A: We accept T/T payment.
4.Q: Do you provide samples?
A: We can provide free samples after discussion, but customers need to pay the shipping cost.
5.Q: Do you support customization?
A: Yes, we can custom order according to customers' requirements.
6.Q: What kind of packaging do you use?
A: Our standard packaging has 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.
We also accept customized packaging as per customer requirements.
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.
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
We offer 10 pcs free samples per series for your evaluation and the buyer cover the express cost.
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.
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.