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BATFT7854 Series Rechargeable Li-ion Button Cells
Batteryswift button batteries are used in wearable devices, medical devices, Internet of Things, smart home, automobiles, trackers, AI eletronics, etc. We can also customize rechargeable coin cell batteries according to customer needs, including the diameter, thickness, shape, capacity, voltage, etc. Coin cell batteries can make full use of the internal space of the device to provide greater capacity and longer endurance, and Batteryswift R&D team works closely with customers to provide the best power solution for their products.
BATFT7854 button cells are rechargeable li-ion button batteries independently developed by Grepow with low internal resistance, good rate performance, stable platform voltage, long cycle life, and a number of advanced core technology patents, etc., are widely used in various fields!
Product Details
The BATFT7854 Rechargeable Button Cells all in one size: 7.8mm (Diameter)*5.4mm(Thickness)
| Model No. | Nominal Voltage |
Full Charged Voltage |
Nominal Capacity |
Internal Resistance |
Weight (±0.1) |
| BATFT7854R1 | 3.7V | 4.2V | 24mAh | ≤ 1Ω | 0.7g |
| BATFT7854R2 | 3.7V | 4.2V | 28mAh | ≤ 0.8Ω | 0.75g |
| BATFT7854F1 | 3.8V | 4.35V | 30mAh | ≤ 1Ω | 0.74g |
| BATFT7854N1 | 3.9V | 4.48V | 31mAh | ≤ 0.8Ω | 0.75g |
| BATFT7854M1 | 3.7V | 4.2V | 25mAh | ≤ 1.4Ω | 0.65g |
| Feature | BATFT7854 Series Specification |
| Patents | 42 Proprietary Innovations |
| Fast Charge | 5C (80% in 12 Mins) |
| Discharge Rate | 10C High-Rate Pulse |
| Energy Density | 556Wh/L |
| Temp Range | -50°C to +80°C (Optional) |
| Certifications | ISO13485, FDA, UL, IEC |
Key Features & Technical Advantages
Proprietary Innovation: Backed by 42 self-developed patents.
Superior Energy Density: Volumetric energy density up to 556Wh/L.
Exceptional Fast Charging: Supports 5C fast charge; reaches ≥80% SoC in just 12 minutes.
Extended Cycle Life: Rated for 1,000+ cycles.
Full Customization: 100% match for your product’s structural design. Bespoke Diameter (≥7.8mm), Height (≥1.5mm), and custom shapes.
Wide Temperature Resilience: Operational range of -50°C to 50°C or -20°C to 80°C.
High-Rate Discharge: Supports 10C continuous discharge.
Certified Safety: Compliant with UL1642, IEC62133, FDA, ISO13485, and UN38.3 (depending on model).
Target Applications
Batteryswift button cells are widely integrated into Wearables, Medical Devices, IoT Sensors, Smart Home systems, Automotive electronics, TWS Earbuds, and Hearing Aids. Our Pouch-style button cells maximize the internal spatial efficiency of your devices, delivering higher capacity and longer runtimes. Our R&D team works closely with global clients to provide bespoke power solutions.
The Stacking Process Advantage
The Batteryswift BATFT7854R1 3.7V Li-ion Button Cell utilizes an advanced Stacking Manufacturing Process. Compared to traditional winding-type cells, our stacked cells offer:
Lower internal resistance.
Superior rate performance.
A higher and more stable discharge voltage platform.
Longer cycle life and thinner, more flexible form factors.
Brand Credibility & Global Support
Patented Technology: Our stacked Li-ion button cells are recognized by national invention patents, successfully breaking the technical monopoly and patent barriers held by foreign competitors.
Risk Mitigation: With 42 proprietary patents, we offer our clients full legal protection and help avoid IP infringement risks in global markets.
Stringent Quality Control: Rigorous testing protocols ensure consistent cell performance.
Global Presence: Immediate on-site customer support available in China, the USA, and Germany.
Our Services:
Flexible Custom Solutions: Tailored button cell engineering.
Reliability & Stability: Consistent power for mission-critical apps.
Scalable Production: Samples for prototyping and high-volume mass production.
Partnership Models: Comprehensive OEM & ODM services.
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