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High-Performance 3.7V 2000mAh Protected 103450 LiPo Battery

Name: 3.7V 2000mAh 103450 LiPo Battery
Brand: Ufine
SKU: UFX0113-02
Price: 1.25 USD
Availability: InStock
Rating: 4.9 (9 reviews)

Model: 103450 SKU: UFX0113-02

Compact 103450 3.7V 2000mAh LiPo battery offering high discharge capability, up to 800 cycles, low internal resistance, and customizable sizes for electronics, medical, and portable devices.

10×34×52mm, reliable power in a compact size.
The integrated DW01+MOS8205 PCB provides protection against overcharge, over-discharge, and short-circuit conditions.
Operates in a wide temperature range: charging, 0°C–45°C; discharging, -20°C–60°C.
Certified for global use. Certified UL1642, FCC, CE, UN38.3.

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3.7V 2000mAh Lithium Polymer Battery UFX0113-02 02

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16 Years Experience
200+ Certifications
1000+ Customers
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Product Details
Specs
Content
FAQs

Premium 103450 3.7V 2000mAh Rechargeable Battery

At only 10mm thick, the 103450 battery fits into ultra-slim devices, delivering 2000mAh capacity without sacrificing performance.

Test Curves of 103450 3.7 V Battery

Take a closer look at the 3.7v 103450 polymer battery test curves—see the stability and performance you can trust for all your power needs!

Cycle Life
Self-Discharge
Discharge Rate
Temp Performance

Cycle Life at 25°C

Even after 600 full charge and discharge cycles, this battery retains over 95% of its original capacity, ensuring a long and dependable service life.

Self-discharge at 25°C

This battery has a very low self-discharge rate, holding its charge for up to a year when stored at room temperature. It's ready to go when you need it, even after long periods of inactivity.

Learn More About Discharge Rate 

Discharge at Different C Rate

Whether you need a slow, steady power source or a quick burst of energy, this battery is designed to handle various discharge rates without significant loss in performance.

Discharge at Different Temperature

Engineered to perform in a wide range of conditions, this battery delivers consistent power from a scorching 60°C down to a frigid -20°C. Note that performance will be reduced in extreme cold.

Certified for Global Compliance

The 3.7V 2000mAh 103450 LiPo Battery holds internationally recognized certifications that simplify integration and global distribution.

UL1642 – Guarantees compliance with rigorous safety standards for lithium batteries.
FCC – Ensures electromagnetic compatibility for seamless integration into electronic devices.
CE – Demonstrates adherence to European safety and environmental requirements.
UN38.3 – Confirms the battery passes international transport tests, allowing safe, compliant global shipping.

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Common Applications

The 103450 3.7V 2000mAh lithium battery is ideal for consumer electronics, medical, industrial, and IoT markets.

103450 3.7v 2000mah battery applications

Quality You Can Trust

Your trust matters to us. That's why Ufine Battery uses only the finest materials and cutting-edge processes to ensure unbeatable quality.

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Premium Raw Materials

Every great battery starts with the right foundation. We source only high-grade lithium cells and components, ensuring consistency, reliability, and long-lasting performance for every product we deliver.

Precision Production

From automated assembly to strict process control, each battery is built with care and accuracy. Our advanced production lines minimize errors and guarantee stable output that meets international standards.

Rigorous Safety Testing

Safety is non-negotiable. Every battery undergoes multiple layers of testing, including extreme evaluations like needle penetration, overcharge, and short-circuit protection, so you can trust it to perform under pressure.

Secure Transportation

We go the extra mile to ensure safe delivery. With certified packaging, compliance with international shipping standards, and careful handling, your batteries arrive ready to perform — without compromise.

Other Battery VS Ufine Battery

Why Choose Ufine Battery? See How We Stand Out from the Rest!

Our Battery

500–800 stable charge cycles, longer service life, lower replacement costs;
Built-in DW01 + MOS8205 PCB; protects against overcharge, over-discharge, and short circuits;
Strict factory quality control ensures consistent 2000mAh capacity and <150mΩ internal resistance;
UL1642, CE, FCC, UN38.3 certified; safe for global distribution;
Customizable connectors, wiring, and protection circuits for diverse applications;
17+ years as a source factory; stable, large-quantity supply at competitive prices;

Other Battery

200–300 charge cycles before noticeable capacity loss;
Limited or no PCB protection; higher risk of overcharge, short circuit, or swelling;
Often lack global compliance certifications;
Fixed specifications; limited customization options;
Middlemen or resellers with unstable supply chains;

What We Custom and How

At Ufine, we know that one size doesn't fit all, especially when it comes to battery needs. That's why we specialize in custom battery solutions.

What

Battery Chemistries: We build with Lithium, Polymer, LiFePO4, and 18650 cells.
Custom Specs: We customize size, voltage, capacity, and shape to fit your needs.
Connectors: Get the perfect fit with JST, Molex, XT series, and more.
Performance: Our batteries handle discharge rates from 0.2C to 25C.
Temperature: They're designed to operate from -40°C to 80°C.

How

01

Enquiry and Design: Contact us with requirements. The technical team creates tailored designs.
02

Sampling and Sample Testing: Receive customized battery samples for evaluation within two days.
03

Confirmation and Production: Finalize specifications, sign the production contract, and pay a 30% deposit.
04

Delivery and Shipping: Make final payment, and arrange safe and efficient delivery.

Battery Specification

1. Mechanical Characteristics

Cell	103450	PCM	Yes
NTC	No	Weight	appr. 38g
Configuration	1S1P

2. Electrical Specification

Capacity	2000mAh	Nominal Voltage	3.7V
Energy	7.4Wh	Internal Resistance	less than 150mΩ
Max. Charge Voltage	4.2V	Discharge Cut Off	2.75V
Max. Charge Current	2000mA	Max. Discharge Current	2000mA
Standard Charge Current	400mA	Standard Discharge Current	400mA
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	4.28V ±50mV (80 to 200msec delay, release 4.08V ±50mV)	Overdischarge Detection	2.4V ±100mV (40 to 120msec. delay, release 3.0V ±100mV)
Overcurrent Detection	2.5A to 4.5A (5 to 10msec. delay)	Short protection	Yes

Download Product Datasheet

The 103450 3.7V 2000mAh lipo battery has become one of the most popular cell sizes in modern electronics. It combines compact dimensions, reliable performance, and customizable features—making it a perfect choice for devices that need stable power in a small form factor.

Whether you’re building smart devices, medical instruments, or industrial equipment, this 3.7V 2000mAh Li-ion cell offers excellent energy density and long cycle life. Below, we’ll explore why this model is so widely used and how Ufine Battery can provide customized power solutions for your needs.

Part 1. Why is the 103450 battery size so popular?

The 103450 lithium-ion battery measures approximately 10 × 34 × 50 mm, a format that fits many compact electronics. Its slim prismatic shape provides a great balance between size and capacity, allowing engineers to integrate it easily into lightweight designs.

Compact and thin – saves internal space for portable products.
Flexible configuration – suitable for single-cell or multi-cell packs.
Stable output – ideal for continuous-use applications.

Because of its dimensional efficiency and performance stability, the 103450 battery is widely used in GPS trackers, handheld meters, medical devices, and IoT equipment.

Part 2. How long does a 2000mAh battery last?

A 2000mAh 3.7V lithium battery can theoretically provide 2 amps for one hour. Actual runtime depends on your device’s power draw:

Low-drain devices (sensors, small gadgets): 8–12 hours
Medium-drain devices (tools, cameras): 2–4 hours
High-drain applications: 1–2 hours or less

For the best balance between runtime and size, match capacity to your device’s average current consumption. Ufine Battery’s engineering team can help you choose or customize the right configuration for your power needs.

Part 3. Key battery parameters to consider

Before selecting a lithium-ion cell, review these essential parameters:

Nominal voltage: 3.7V
Capacity: 2000mAh
Discharge rate: 0.5C–1C typical
Cycle life: 500–800 cycles
Internal resistance: <150mΩ

These values determine performance, heat generation, and lifespan. Ufine’s 103450 Li-ion cells are carefully tested for consistency and quality control to ensure stable output and durability.

Part 4. Connector, wire, and charger selection

Selecting the right connector, wire, and charger is essential for safe battery performance:

Connectors: JST, Molex, or custom options available.
Wiring: Choose proper gauge for current rating.
Charging: Use 4.2V constant current/constant voltage (CC/CV) chargers.

Ufine Battery provides custom wiring, connectors, and charging accessories designed for seamless integration into OEM devices.

Explore Common Types of Lipo Battery Connectors

Part 5. Why battery certifications matter

Certifications prove a battery meets international safety and transport standards. Common ones include:

CE – European safety and quality compliance.
UL/TUV 1642 – Tests for overcharge, short circuit, and temperature safety.
UN38.3 – Required for air shipment of lithium batteries.
FCC & RoHS – Ensures electromagnetic and material safety.

All Ufine 103450 batteries meet CE, UL, FCC, and UN38.3 standards, ensuring both performance and safe transport worldwide.

Part 6. Maintenance and safety

Proper care ensures your battery performs at its best and lasts longer:

Avoid overcharging or deep discharging.
Charge at 0°C–45°C and discharge at -20°C–60°C.
Store in a cool, dry environment when not in use.
Never puncture, crush, or expose to fire.

Following these guidelines can help achieve up to 800 reliable charge cycles with minimal performance loss.

Part 7. Custom battery solutions from Ufine

With over 17 years of experience, Ufine Battery specializes in custom lithium battery packs for various industries. We offer flexible options for voltage, capacity, shape, and connection design.

Custom voltage and capacity configurations
Connector and wire harness customization
Protection circuits (PCM/BMS) integration
Low MOQ and OEM/ODM support
Full certification and testing reports

Ufine’s 103450 3.7V 2000mAh Li-ion battery is available for prototypes, mass production, and tailored battery pack design.

FAQs

What does “103450” mean?

It refers to the cell dimensions: 10 mm thick, 34 mm wide, and 50 mm long.
Can I use a 103450 battery as a replacement for other Li-ion cells?

Yes, as long as the voltage and connector type match your original battery.
How long does a 103450 2000mAh Li-ion battery last per charge?

Runtime depends on your device’s power draw. For low-drain devices, it can last 8–12 hours or more, while high-drain devices may consume it within 2–4 hours.
Can I connect multiple 103450 3.7V batteries together?

Yes. You can connect them in series to increase voltage or in parallel to increase capacity. Always include a BMS (Battery Management System) to ensure safety and balance.
What’s the difference between Li-ion and LiPo versions?

LiPo (lithium polymer) uses a flexible pouch, offering lighter weight and thinner designs than cylindrical Li-ion cells.
How can I connect multiple 103450 cells for higher voltage?

You can connect them in series for higher voltage or in parallel for higher capacity, but always include a protection circuit (PCM/BMS).

Ready to Power Your Project?

We’ll help you design the perfect power source — tailored to your voltage, capacity, size, C-rate, and performance needs.

What Our Customers Are Saying

We love hearing from you! Your experiences help us improve and inspire others. Check out what our happy customers have to say about our lithium batteries—share your thoughts with us too!