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3.7V 450mAh 602040 Lithium Polymer Battery CE KC Certified For Small Electronics

Brand Name:	Vats Battery
Model Number:	451819
MOQ:	3 pcs
Price:	$0.95~1.88
Delivery Time:	7 work days
Payment Terms:	T/T

Detail Information

Product Description

Ratings & Reviews

Detail Information

Place of Origin:

Guangdong, China

Certification:

Dimension:

6±0.2*20±0.5*40±2.5mm

Nominal Capacity:

450mAh

Nominal Voltage:

3.7V

Charge Voltage:

4.2V

Max Discharge Current:

Cycle Life:

500 Cycles

Packaging Details:

Industrial cartons compliant with air & sea shipping standards

Supply Ability:

Ships in 7 Business Days (In-Stock) / 30 Business Days (Out-of-Stock)

Highlight:

3.7V 450mAh lithium polymer battery

602040 size LiPo battery

CE KC certified lithium battery

Product Description

3.7V 450mAh 602040 Lithium Polymer Battery CE KC Certified For Small Electronics

3.7V 450mAh 602040 Lithium Polymer Battery CE KC Certified for Small Electronics

Specifications

Item	Details
Model Number	HZ602040
Cell Type	Lithium polymer battery
Dimension	6±0.220±0.540±2.5mm (ThicknessWidthLength)
Nominal Capacity	450mAh, custom size/capacity/voltage available
Nominal Voltage	3.7V
Max Charging Cutoff Voltage	4.2V
Standard Discharge Current	0.2C-0.5C
Max Continuous Discharge Current	1C
Connector Option	JST / Molex, customizable as requested
Cycle Life	Up to 500 charge & discharge cycles
Certifications	CE, KC compliant
Lead Time	3-7 days for stock items; 2-3 weeks for bulk orders
Packaging	Industrial cartons compliant with air & sea shipping standards

Product Brief

This durable li polymer battery delivers steady 3.7V power for selfie sticks and compact portable gadgets. As a reliable 3.7v wearable device battery, it features a 450mAh capacity and stable discharge performance, eliminating frequent recharging troubles for your small consumer electronics. Our factory customizable lithium ion battery cell fits all miniature low-power devices perfectly.

Why Choose Us

Stable Long Cycle Service Life

Concern: Short battery lifespan requiring frequent replacements
Advantage: This li polymer battery supports 500 full charge cycles
Benefit: Cut your long-term device maintenance and replacement costs

Customizable Size & Connector Matching

Concern: Hard to find batteries matching your device shell and wiring port
Advantage: Adjustable capacity, voltage, size and JST/Molex connectors
Benefit: Get a tailor-fit 3.7v wearable device battery for your exclusive electronic products

Safe Global Shipping Certified Packaging

Concern: Risk of battery damage or transit compliance delays
Advantage: Standard industrial cartons meeting international air & marine transport rules
Benefit: Smooth cross-border delivery without logistics hold-ups

Factory Direct Supply With Sample Support

Concern: Middleman markup and inability to test performance before bulk purchase
Advantage: Direct supply from professional lithium ion battery cell manufacturer, sample testing available
Benefit: Lower procurement cost and verified product performance before mass orders

Consistent Stable Discharge Output

Concern: Voltage drop causing sudden device shutdown mid-use
Advantage: Controlled 0.2C-1C stable discharge current range
Benefit: Uninterrupted running of your portable gadgets without sudden power loss

Product Application

This versatile li polymer battery works with all small portable consumer electronics across daily scenarios:

Daily commute: Car dash cams, GPS navigation trackers, wireless remote controls
Personal care: Electric massagers, dental irrigators, blackhead removal devices, portable sprayers
Smart wearables: Smart bracelets, compact wearable gadgets as a 3.7v wearable device battery
Photography & accessories: Selfie sticks, mini digital cameras
Home smart gear: Small low-power smart home appliances and mini smart accessories

Suitable for indoor daily use, short outdoor trips and travel portable equipment power supply.

FAQ

Q1: Can I customize the capacity or dimension of this lithium ion battery cell?

A1: Yes. We support custom size, voltage and capacity adjustments to match your unique device, making a perfect 3.7v wearable device battery for your product line.

Q2: What is the typical lead time for bulk orders?

A2: In-stock items ship within 3-7 working days. Custom bulk orders require 2 to 3 weeks production cycle after deposit confirmation.

Q3: Which connectors are pre-installed on this li polymer battery?

A3: Default options include JST and Molex connectors. We can swap or redesign wiring terminals based on your equipment's port requirements.

Q4: How many times can the battery be fully charged and discharged?

A4: The lithium polymer battery maintains stable performance for up to 500 full charge-discharge cycles under standard 0.2C-0.5C discharge use.

Q5: Does this battery pass international safety shipping standards?

A5: Our industrial carton packaging meets global air freight and ocean shipping regulations, paired with CE and KC certification for cross-border sales.

Q6: Can I order samples to test performance before large bulk purchase?

A6: Sample testing service is fully supported. You may place small sample orders to verify this 3.7v wearable device battery's compatibility with your electronics.

Q7: What is the maximum discharge current the cell can handle?

A7: Standard discharge range is 0.2C to 0.5C; the lithium ion battery cell supports peak 1C continuous discharge for short-term high power demand.

Q8: What devices is this 450mAh 3.7V battery compatible with?

A8: It fits selfie sticks, car recorders, GPS trackers, smart bracelets, portable massagers, dental rinsers, mini cameras and most low-power wearable electronics.

After-sales Guarantee

Factory Quality Assurance: Every li polymer battery undergoes full performance testing before shipment to avoid defective cells.
Flexible Custom Support: Our engineering team adjusts size, connectors and capacity to build a matched 3.7v wearable device battery for your product lineup.
Smooth Global Logistics: Standard compliant carton packaging prevents transit damage and avoids customs clearance delays for all international shipments.
Responsive Technical Support: Our professional sales team answers all compatibility, customization and shipping questions within 24 working hours.
Sample Trial Available: Test the lithium ion battery cell's real-world performance before committing to large-volume orders to reduce procurement risk.

Ratings & Review

Overall Rating

5.0

Based on 50 reviews for this supplier

Rating Snapshot

The following is the distribution of all ratings

5 stars

100%

4 stars

3 stars

2 stars

1 stars

All Reviews

Robert T.

United States May 13.2026

Helpful (99)

As a veteran engineer in portable audio and smart hardware R&D, I demand the absolute best in battery electrical performance. We sourced this 103048 3.7V 1500mAh Li-polymer battery for a BT speaker project, and its real-world performance has completely blown us away.

Owen

Canada Apr 7.2026

Helpful (86)

I’ve been using this 357090 3.7V 2500mAh lipo battery for a few weeks now, and I’m really satisfied with it. It is steady-quality rechargeable lithium polymer batteries that perfectly match the rated voltage and capacity. Output efficiency is great, which helps me save a lot of working time. Build quality feels solid too, no weird noises or faults during daily operation. Shipping was fast and the packaging was protective. For small-scale battery production and copying work, this is absolutely a practical and cost-effective pick. I’d definitely recommend it to fellow business partners and will consider reordering in the future.

Harry

United Kingdom Mar 18.2026

Helpful (90)

I bought these 805050 3.7V 2500mAh lithium polymer batteries to replace the old cells in my Bluetooth speakers, and they work brilliantly. Fit is absolutely perfect, no trimming needed at all. The voltage and capacity are spot on, my speakers now hold charge for much longer than before. Power output is stable, sound quality isn’t affected one bit. They’re well-made and feel really durable. Delivery arrived quickly, items were well packed with no damage. Great value for money compared to local stores. I’ve been using them daily for weeks with zero issues. Would absolutely recommend these batteries to anyone needing replacements for wireless speakers. I’ll be coming back to buy more soon!

Tags:

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High Discharge Lipo Battery

Ultra Thin Lipo Battery

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Li Ion Battery Pack

LiFePO4 Battery Pack

High Temperature Lipo Battery

Custom Lipo Battery

products details

3.7V 450mAh 602040 Lithium Polymer Battery CE KC Certified For Small Electronics

3.7V 450mAh lithium polymer battery

602040 size LiPo battery

CE KC certified lithium battery

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