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803450 3.7V 1500mAh LiPo Battery for Portable Devices

Model: 803450 SKU: UFX0378-03

The 803450 is a 3.7V 1500mAh LiPo battery with 5.55Wh nominal energy, designed for portable electronics that need longer runtime in a compact rechargeable battery.

3.7V nominal voltage with 1500mAh rated capacity and 5.55Wh energy.
More than 80% capacity retention after 500 cycles under stated 0.5C test conditions.
Supports discharge operation from -20°C to 60°C.
KC, UL/TÜV, CB, BSMI-50, CE, RoHS, and UN38.3 coverage.
Connector, wire, polarity, PCM, and optional NTC can be evaluated for OEM integration.

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803450 3.7V 1500mAh LiPo Battery

The Ufine 803450 LiPo battery provides 3.7V nominal voltage, 1500mAh capacity, and 5.55Wh nominal energy. It is made for rechargeable devices that need more runtime in a compact battery format. The 803450 also has multiple safety, market, material, and transport certifications.

803450 Battery Performance

The 803450 is a rechargeable 3.7V LiPo battery. Its discharge behavior, cycle life, storage, and temperature range should all be checked during device design.

Discharge
Cycle Life
Storage
Temperature

803450 3.7V 1500mAh battery discharge performance

3.7V 1500mAh Output

The 803450 provides 3.7V nominal voltage and 1500mAh rated capacity. Its nominal energy is 5.55Wh.

Nominal voltage: 3.7V
Rated capacity: 1500mAh
Nominal energy: 5.55Wh
Rechargeable single-cell LiPo battery

Learn More About Discharge Rate 

803450 lithium polymer battery cycle life

Capacity After 500 Cycles

At room temperature, the battery keeps more than 80% capacity after 500 cycles under the stated test conditions.

Cycle test: 500 cycles
Capacity retention: >80%
Test condition: 0.5C charge and discharge

Learn More About Cycle Life 

Storage Conditions

Temperature and state of charge can affect battery aging. For longer storage, keep the battery in a cool and dry place.

Avoid long-term storage at high temperature
Keep the battery away from moisture and direct heat
Avoid keeping the battery fully charged for long periods when not needed

Learn More About Battery Storage 

803450 lithium battery temperature performance

-20°C to 60°C Discharge

The specified discharge temperature range is -20°C to 60°C. Cold or hot conditions can affect available capacity and runtime.

Discharge temperature: -20°C to 60°C
Low temperature can reduce available capacity
Special temperature needs should be checked separately

Learn More About Temperature Range 

Certifications for Key Markets

The 803450 has certification and compliance coverage for safety, market access, materials, and lithium-battery transport.

803450 Certification Coverage

These documents can help OEM customers prepare products for regional sales and international shipment.

KC: supports battery requirements for the Korean market.
UL / TÜV: provides third-party battery safety evaluation.
CB: supports international safety assessment under the IECEE CB Scheme.
BSMI-50: supports applicable market requirements for Taiwan.
CE: supports applicable European conformity requirements.
RoHS: covers restricted-substance requirements.
UN38.3: covers lithium-battery transport testing for shipment.

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803450 LiPo battery certifications including KC CB CE RoHS and UN38.3

Where the 803450 Fits

The 803450 is suitable for compact rechargeable products that need a 3.7V battery with 1500mAh capacity. Possible uses include portable instruments, IoT devices, handheld electronics, medical electronics, beauty devices, and smart hardware. The final choice should also match the device current, battery space, connector, and protection design.

803450 3.7V 1500mAh LiPo battery for portable electronic devices

How We Check the 803450

Quality checks cover incoming parts, production, electrical performance, and final inspection.

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803450 LiPo battery dimensional control for 8 × 34 × 52 mm max size

Material Check

Battery materials and pack parts are checked before production.

803450 battery component inspection before assembly

Process Control

Key production steps are controlled to keep assembly consistent.

803450 LiPo battery controlled assembly and production process

Electrical Check

Electrical values are checked against the required battery specification.

803450 3.7V 1500mAh LiPo battery electrical verification and final quality check

Final Inspection

Finished batteries are checked again before release and shipment.

Ufine 803450 vs Other Brand Options

Not every 3.7V 1500mAh battery has the same design, test data, or certification coverage. Compare the key details before choosing a supplier.

Ufine 803450

3.7V nominal voltage and 1500mAh rated capacity
5.55Wh nominal energy
More than 80% capacity retention after 500 cycles under stated test conditions
-20°C to 60°C specified discharge temperature range
KC, UL/TÜV, CB, BSMI-50, CE, RoHS, and UN38.3 coverage
Connector, wire, polarity, PCM, and optional NTC can be evaluated for OEM projects
Production and final inspection controls for electrical and assembly quality

Request 803450 Details

Other Brand Options

Confirm whether the rated capacity is supported by test data
Check the stated cycle-life test conditions and capacity retention
Confirm the charging and discharging temperature limits
Check which certifications apply to the exact battery model
Confirm connector, wire, polarity, and protection-circuit details
Check whether OEM changes are supported before mass production
Confirm inspection records and required shipment documents

Customize the 803450

Connector, wiring, protection, and installation details can be adjusted to match your device.

What

Connector: JST / Molex / compatible options
Custom: wire length, gauge, and polarity
Protection: PCM configuration
Optional: NTC temperature sensing
Mechanical: wire exit and installation layout

How

01

Confirm the available battery space.
02

Define average current, peak current, and runtime.
03

Confirm connector, wire, and polarity.
04

Confirm protection and NTC needs.
05

Approve the final battery specification.

Compare 3.7V LiPo Batteries by Size and Capacity

Compare other 3.7V LiPo batteries when the 803450 does not match your space or runtime needs. Check battery size, capacity, current, connector, and installation layout before changing models.

Recommended Products	Voltage	Model	Capacity	Size (mm)
Compact 1300mAh LiPo	3.7V	703448	1300mAh	7 × 34 × 50
Compact 1500mAh LiPo	3.7V	103140	1500mAh	10 × 31 × 42
Slim 1100mAh LiPo	3.7V	603450	1100mAh	6 × 34 × 52
Thin 1200mAh LiPo	3.7V	524050	1200mAh	5.2 × 40 × 52
Higher-Capacity LiPo	3.7V	104547	2000mAh	10 × 45 × 49
Long 2000mAh LiPo	3.7V	803273	2000mAh	8 × 32 × 75
Compact 1000mAh LiPo	3.7V	853334	1000mAh	8.5 × 33 × 36
Slim Long 1100mAh LiPo	3.7V	553562	1100mAh	5.5 × 35 × 64
Higher-Capacity Compact LiPo	3.7V	123252	2500mAh	12 × 32 × 54
Thin Long 1200mAh LiPo	3.7V	503365	1200mAh	5 × 33 × 67

Battery Specification

1. Mechanical Characteristics

Cell 803450 PCM Yes

NTC No Weight appr. 36g

Configuration 1S1P

2. Electrical Specification

Capacity	1500mAh	Nominal Voltage	3.7V
Energy	5.55Wh	Internal Resistance	less than 150mΩ
Max. Charge Voltage	4.2V	Discharge Cut Off	2.4V
Max. Charge Current	1500mA	Max. Discharge Current	1500mA
Standard Charge Current	750mA	Standard Discharge Current	750mA
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 4.2V ±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

Choosing a battery is only one part of product design. The next step is making sure the battery fits the enclosure, connects correctly, works with the charger, and performs as expected in the real device.

For the 803450 battery, most integration problems can be avoided by checking the mechanical layout, load profile, wiring, charging system, and sample performance before mass production.

Part 1. Start with the battery compartment

Do not design the battery cavity around the nominal battery size alone. A finished battery also needs space for the pouch edge, protection parts, wires, connector, and assembly tolerance.

Leave clearance around the battery instead of making the cavity too tight.
Check where the wires leave the battery and where the connector will sit.
Avoid sharp enclosure ribs or screws pressing against the pouch.
Allow enough room for assembly and removal during testing or repair.

A battery that fits in CAD may still be difficult to install if the wire direction or connector position is ignored.

Part 2. Design for the real load profile

Average current is useful for estimating runtime, but it does not show the full device load. Many products have short current peaks during startup, wireless transmission, motor movement, lighting, or sensor operation.

Idle current: affects standby time.
Average current: is the main value used for runtime planning.
Peak current: can affect voltage drop and device stability.
Duty cycle: matters when high-current functions run only for short periods.

For a better battery match, record the current profile of the real device instead of using only the rated power of each component.

Part 3. Plan the wire and connector position early

Wire and connector design can change how much internal space the battery needs. This should be decided before the enclosure design is frozen.

Keep the wire path short and free from sharp bends.
Make sure the connector can be inserted and removed without pulling the battery.
Keep wires away from moving parts, screws, and sharp plastic edges.
Confirm connector orientation and polarity before sample production.

Explore Common Types of LiPo Battery Connectors

Part 4. Match the battery to the charging system

The battery, charger, and device protection logic should be treated as one system. A battery should not be selected separately from the charging circuit.

Confirm the charger is designed for a single-cell rechargeable lithium battery.
Set the charge current according to the approved battery specification.
Check whether protection is located on the battery, the main PCB, or both.
If the product reads battery temperature, confirm the required NTC value and wiring.

The final charger settings should be confirmed with the approved battery drawing and specification before production.

Part 5. Validate the battery in the real device

A battery sample should be tested inside the final product, not only on a battery tester. System-level testing can reveal issues that are easy to miss during early selection.

Check runtime under normal product use.
Check voltage behavior during the highest device load.
Check charging time and battery temperature during charging.
Check standby drain when the product is switched off or sleeping.
Repeat the test after the battery is installed in the final enclosure.

For new products, it is better to approve the battery after device testing and then lock the connector, wire, and protection configuration for production.

Part 6. When should you compare another battery shape?

A different battery model may solve a mechanical problem without changing the 3.7V system. Compare nearby capacities and shapes when the 803450 does not fit the enclosure well.

Need the same 1500mAh capacity in a shorter format? Compare the 103140 3.7V 1500mAh battery .
Need a thinner battery? The 603450 3.7V 1100mAh battery uses a slimmer 6 mm format with lower capacity.
Need more runtime and have more space? Compare the 104547 3.7V 2000mAh battery .

The best choice is not always the battery with the highest capacity. The battery shape, available space, load profile, and connection layout should be evaluated together.

Part 7. What should be confirmed before mass production?

Once the battery works in the prototype, the final configuration should be fixed before production starts.

Battery model and approved drawing
Connector model and mating part
Wire length, gauge, color, and polarity
Protection and temperature-sensing configuration
Label and marking requirements
Required compliance documents for the target market

Confirming these items early helps reduce connector changes, enclosure changes, and battery rework later in the project.

FAQs

What are the main specifications of the 803450 battery?

The 803450 is a 3.7V 1500mAh rechargeable LiPo battery with 5.55Wh nominal energy. It is designed for compact electronics that need more runtime than lower-capacity 3.7V batteries.
How long can a 1500mAh 803450 battery run a device?

Runtime depends on average device current. Theoretically, 1500mAh provides about 15 hours at 100mA, 5 hours at 300mA, or 3 hours at 500mA. Actual runtime is usually lower because of system losses and operating conditions.
What types of devices can use the 803450 battery?

The 803450 can be used in portable instruments, IoT devices, handheld electronics, medical electronics, beauty devices, and other 3.7V rechargeable products when the size, current, and connection requirements match.
Can the 803450 replace another 3.7V 1500mAh LiPo battery?

It may be suitable if the finished battery size, load current, connector, polarity, wire layout, charging system, and protection design are compatible with the device. Capacity and voltage alone are not enough to confirm replacement.
What certifications does the 803450 battery have?

The 803450 has KC, UL/TÜV, CB, BSMI-50, CE, RoHS, and UN38.3 certification or compliance coverage for safety, market access, materials, and lithium-battery transport.
What is the cycle life of the 803450 LiPo battery?

Under the stated room-temperature test condition of 0.5C charge and discharge, the battery retains more than 80% of its capacity after 500 cycles. Actual service life depends on temperature, charging, and device use.
What is the discharge temperature range of the 803450 battery?

The specified discharge temperature range is -20°C to 60°C. Battery capacity and runtime may change at very low or high temperatures.
Can the connector, wire, PCM, or NTC of the 803450 battery be customized?

Yes. Connector type, wire length and gauge, polarity, protection-circuit configuration, and optional NTC sensing can be evaluated for OEM device integration.

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