3.7V 15mAh Ultra Thin Battery 091525 — Power for Micro Gadgets
Model: 091525 SKU: UFX0364-03
Ufine delivers an ultra-slim 3.7 V 15mAh solution—the perfect thin battery for a small gadget that demands maximum space efficiency.
- Engineered as a true small thin battery for next-generation compact electronics.
- Lightweight micro-cell design that fits effortlessly into ultra-tight spaces.
- Stable 3.7 V output ensures reliable performance for tiny, mission-critical devices.
- Optimized 15 mAh capacity for extended standby and consistent low-power operation.
- Ufine provides full customization for any thin battery size, shape, or connector requirements.
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Product Details
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Specs
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Content
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FAQs
Compact 3.7V 15mAh Thin Battery 091525 for Small Gadget Applications
Built for the tiniest gadgets that still demand dependable energy, the 3.7 V 15mAh Ultra Thin Battery 091525 delivers stable micro-power in an ultra-slim, featherweight package. Ideal as a 15 mah battery solution for wearables, tiny sensors, smart tags, and other space-constrained electronics, it enables compact designs without sacrificing cycle life or temperature resilience.
Performance Highlights — Ultra Thin 091525 for Micro Power
Designed specifically for minimal-volume devices, the following highlights explain how this thin battery for small gadget use case benefits product designers and OEM engineers.
- Micro-Power Delivery
- Cycle Reliability
- Wide Temp Range
- Ultra-Low Standby
Stable Micro-Power Delivery for Intermittent Loads
Although compact, this small thin battery supplies predictable output for low-power bursts and periodic telemetry transmissions common in micro IoT and wearable devices. Designed for 1C charge/discharge behavior, it maintains voltage stability across brief transmit cycles and background sensing tasks.
- Nominal voltage: 3.7V; safe cutoff: 2.75V
- Rated capacity: 15mAh — optimized for tiny electronics
- Max. continuous/standard currents tuned for micro-loads (≈15mA)
Durable Cycle Life for Repeated Use
Engineered to remain useful over many charge cycles despite small cell size, the 091525 retains a strong percentage of original capacity across typical micro-device lifetimes — reducing maintenance and replacement frequency for deployed small gadgets.
- 100 cycles: ≥92% capacity retention
- 300 cycles: ≥88% retention — suitable for frequent-use wearables
- 500 cycles: ≥80% retention for long-running sensor applications
Operational Range That Fits Tiny Devices
Lightweight devices often see varied environments; this thin battery supports practical charge and discharge temperature ranges so designers can confidently place it into indoor wearables and outdoor tags alike.
- Charge: 0℃ to 45℃
- Discharge: -20℃ to 60℃
- Storage options for seasonal or spare inventories
Low Self-Discharge for Long Shelf Life
With optimized cell chemistry for minimal standby loss, the 091525 is a strong candidate when you need a thin battery that holds charge in inventory or remains ready inside rarely-used micro devices.
- Minimal capacity loss in ambient storage
- Suitable for backup and low-duty cycle applications
- Storage guidance: up to 1 year at −20℃ to +30℃
Core Strengths of the 091525 Ultra Thin Cell
Tiny size, minimal weight, and stable micro-power make the 091525 a pragmatic choice for designers of the smallest connected devices.
Key Advantages for Designers and OEMs
Specifically tuned to support microcontrollers, short-burst radios, and low-power sensors, the 091525 balances physical constraints and operational reliability.
- Extremely thin & lightweight — approx. 0.6g for tight form-factors
- Designed for low internal resistance relative to size (≤1300mΩ)
- Optimized for 1C (≈15mA) micro loads often required by tiny gadgets
- Predictable batch characteristics for consistent device calibration
- Practical cycle retention up to 500 cycles for many micro-applications
Production Highlights for 091525 Ultra Thin Cells
Our production emphasizes minimal profile, controlled assembly, and verification to ensure reliable micro-power behavior in your final product.
View more production details 
Layer alignment and compression control reduce mechanical stress while keeping thickness minimal.
Careful thermal profiling during assembly prevents hotspots and preserves cycle life in a compact envelope.
Micro-spot welding and adhesive selection ensure secure terminals without adding thickness.
Each lot undergoes targeted micro-load verification so device integration is predictable and repeatable.
Ufine Small Thin Battery vs Typical Tiny Cells
A quick procurement comparison for teams selecting a thin battery for small gadget applications.
Ufine 091525
- Ultra-thin profile with predictable micro-power output
- Controlled internal resistance (≤1300mΩ) for tiny load efficiency
- Featherweight (~0.6g) for strict payload budgets
- Batch traceability and micro-integration guidance
- Stable cycle retention up to 500 cycles
- Custom tab and connector options suitable for micro PCBs
- Operating range: -20℃ ~ 60℃
Typical Alternative
- Less predictable IR in micro-size form factors
- Possibly heavier / thicker for same capacity
- Limited testing for micro-burst radio loads
- Fewer customization options for micro connectors
Customization for 091525 Thin Battery Modules
Flexible micro-integration options to match your gadget’s mechanical and electrical needs.
- Supply of single 091525 cells or pre-terminated 1S modules
- Capacity / tolerance matching for parallel micro assemblies
- Micro-tab shapes, lengths, and adhesive backing options
- Protection modules and ultra-low profile PCM on request
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01Define device duty cycle and peak transmit bursts
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02Select tolerance band for capacity and IR matching
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03Choose micro-tabing and adhesive integration method
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04Prototype integration with thermal & mechanical verification
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05Mass production with micro QA checkpoints and sample runs
Battery Specification
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1. Mechanical Characteristics
Cell 091525
PCM No NTC No Weight appr. 0.6g Configuration 1S1P -
2. Electrical Specification
Capacity 15mAh Nominal Voltage 3.7V Energy 0.0555Wh Internal Resistance less than 1300mΩ Max. Charge Voltage 4.2V Discharge Cut Off 2.75V Max. Charge Current 15mA Max. Discharge Current 15mA Standard Charge Current 15mA Standard Discharge Current 15mA Charging Temperature 0℃ to 45℃ Discharging Temperature -20℃ to 60℃ Storage Temp.Range 1 year at -20℃ to +30℃ 3 mos. at -20℃ to +45℃ 1 mo. at -20℃ to +60℃ Cycle life 100 cycles ≥92% 300 cycles ≥88% 500 cycles ≥80% -
3. Cell protection
Overcharge Detection No Overdischarge Detection No Overcurrent Detection No Short protection No
If you're building ultra-compact electronics, choosing the right 15 mAh battery can determine whether your device stays thin, light, and reliable. This guide explores how a small thin battery like the 3.7 V 15mAh Ultra Thin Battery 091525 empowers next-generation wearables, sensors, and micro gadgets—plus what buyers should know before integrating it into their designs.
Part 1. Why ultra-thin batteries matter for micro devices?
As devices become slimmer and smarter, engineers need power sources that meet strict size and performance requirements. A thin battery for a small gadget must deliver stable power without adding bulk, making it essential for innovations in smart labels, health patches, compact trackers, and miniature IoT modules.
For businesses developing micro-electronics, choosing the right battery can reduce redesign costs, increase product reliability, and improve market competitiveness.
Part 2. What makes the 3.7 V 15mAh Ultra Thin Battery 091525 different?
The 091525 cell is engineered as a small thin battery optimized for limited spaces, offering dependable output in ultra-compact electronics. It is specifically designed for OEM integrations where consistent voltage, safety, and customizability are critical.
1 Ultra-slim construction built for tight spaces
Only a few millimeters thick
This 15 mAh battery fits easily into card-type devices, medical patches, and miniature sensors without requiring housing or structural changes.
No compromise on stability
Despite its thin form, it delivers reliable 3.7 V output suitable for Bluetooth-enabled devices, NFC/ID modules, and low-power electronics.
2 Efficient for low-power, continuous-use designs
Optimized for steady micro-current draw
The chemistry and internal structure ensure consistent performance for devices that operate in standby or intermittent-pulse mode.
Reduced self-discharge
A crucial feature for IoT devices that may remain dormant for long intervals before activation.
3 Built for OEM production and scalability
Consistency across batches
Engineered for mass-production stability, ensuring voltage, thickness, and capacity remain uniform—important for device certification and assembly lines.
Flexible customization
From lead type to connector format to protection circuit options, the 091525 can be customized to meet your exact design requirements.
Pro Tip: When integrating any thin battery, conduct a fit-and-thermal test early in the prototyping stage to prevent last-minute enclosure redesigns and certification delays.
Part 3. Best applications for the 3.7 V 15mAh Ultra Thin Battery
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Wearable medical patches
- Its ultra-slim structure fits comfortably in disposable medical and fitness monitoring patches.
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Smart tags & ID modules
- Perfect for ultra-low-power tracking, authentication, and logistics identification devices.
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Mini IoT nodes & micro-sensors
- Supports stable operation for micro-sensors capturing environmental, motion, or positional data.
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Compact consumer gadgets
- Designed for concept devices where every millimeter counts in achieving slim industrial design.
Part 4. How to choose the right 15mAh thin battery for your project
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Available installation space
- Evaluate maximum thickness and consider adhesives, frames, and case tolerances.
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Peak & average current draw
- Confirm the 15 mAh battery can handle normal load plus short burst pulses.
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Cycle life expectations
- Match battery longevity with device use—disposable, semi-disposable, or reusable.
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Production scalability
- Ensure long-term supply stability for prototypes, pilot runs, and mass production.
Part 5. Should you integrate the 3.7 V 15mAh Ultra Thin Battery 091525?
This battery is an excellent choice for brands and manufacturers focused on ultra-compact innovation. With reliable output, stable chemistry, and custom options, it fits seamlessly into modern micro-electronics where every millimeter matters. Whether you're building next-generation wearables or intelligent ID devices, the 091525 provides a balance of thinness, efficiency, and integration flexibility.
Ready to source a thin battery for a small gadget? Ufine’s engineers can help validate your design and recommend the optimal configuration.
FAQs
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What devices commonly use the 3.7 V 15mAh ultra thin battery 091525?
This micro 15mAh thin battery is widely used in smart cards, mini trackers, medical patches, wearable tags, and compact IoT modules that require an ultra-slim power source. -
How thin is the 091525 battery and why is it ideal for small gadget designs?
The 091525 cell features an ultra-slim profile around 1.9 mm, making it suitable for extremely limited internal spaces where traditional cells cannot fit. -
Does the 15mAh capacity provide stable performance for low-power electronics?
Yes. The battery is optimized for low-current, intermittent-use devices and maintains a stable 3.7 V output for sensors, ID devices, and micro-IoT products. -
Can the 091525 thin battery be customized for my product?
Ufine offers customization options including dimensions, tab types, connectors, PCM protection, and outer film materials to fit unique structural requirements. -
How long does it take to fully charge a 15mAh battery?
Due to its small capacity, the 091525 typically charges within 20–40 minutes depending on the applied charging current. -
Is the 3.7 V 15mAh battery safe for skin-contact or wearable applications?
Yes. The polymer chemistry enables safe, stable operation, and optional medical-grade coatings can be added for patches and skin-contact electronics.
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