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Lithium Polymer Battery
Created with Pixso. 402030 150mAh 3.7V Li Polymer Rechargeable Lithium Ion Battery Cell

402030 150mAh 3.7V Li Polymer Rechargeable Lithium Ion Battery Cell

Brand Name: VATS Battery or Neutral
Model Number: 402030
MOQ: 10
Price: $0.88-1.48
Delivery Time: 7 work days
Payment Terms: T/T
Detail Information
Place of Origin:
Guangdong, China
Certification:
UL1642//UL2054/CB/KC/PSE/CE/ROHS/UN38.3/MSDS
Battery Size:
4±0.2 * 20±0.5 * 30±2.5 Mm
Voltage:
3.7V
Cycle Life:
500 Charge Cycles
Discharge Rate:
0.5C
Capacity:
150mAh
Max Charge Voltage:
4.2V
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:

402030 Li Polymer battery 150mAh

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3.7V rechargeable lithium ion battery

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small lithium polymer battery cell

Product Description
402030 150mAh 3.7V Li Polymer Rechargeable Lithium Ion Battery Cell
Product Specifications
Item Details
Model HZ402030
Cell Type Lithium polymer battery
Nominal Capacity 150mAh, custom capacity & size available
Nominal Voltage 3.7V
Max Cut-off Charging Voltage 4.2V
Dimension 4±0.2 * 20±0.5 * 30±2.5 mm (Thickness*Width*Length)
Standard Discharge Current 0.2C-0.5C
Max Discharge Current 1C
Connector Option JST, Molex, custom connector available
Cycle Life Up to 500 charge-discharge cycles
Certifications CE compliant
Product Overview

This reliable li polymer battery delivers stable 3.7V power for compact small-size electronics. Avoid frequent power-out issues for your wearable and portable gear. This lithium ion battery cell fits tight-space devices with consistent, safe power output.

Key Advantages
Stable Power Output

Consistent 3.7V performance prevents sudden shutdowns for your small electronics. Your devices run smoothly without unexpected power drops during daily use.

Decent Long Cycle Life

Up to 500 charge cycles for repeated daily use. You get longer service life and lower replacement cost for your 3.7v wearable device battery projects.

Flexible Custom Support

Custom size, capacity and connector options are supported. Match exact housing and wiring requirements for your prototype or mass-production orders.

Safe Industrial-Grade Packaging

International-standard carton packing for air and sea shipment. Cells stay protected during transit with lower risk of physical damage.

Sample Available for Testing

Order samples to verify real-world performance before bulk purchase. Reduce project risk and confirm fit for your target equipment.

Fast Lead Time

Stock items ship within 3-7 days. Production orders complete in 2-3 weeks. Keep your product development schedule on track.

Applications

This compact li polymer battery fits a wide range of portable smart electronics for home, travel and outdoor scenarios:

  • Car recorders, GPS navigators, smart home appliances and massagers
  • Consumer electronics, digital cameras, sprayers and dental rinsers
  • Smart bracelets, blackhead devices, remote controls, smart watches
  • Electronic toy guns and electric air pumps
  • Smart trash cans, bluetooth speakers, fingerprint locks
  • Electric hair clippers and training collars
  • Camping lights, robot vacuums, electric toothbrushes
  • Pet water fountains, electric shavers and mini handheld fans
Frequently Asked Questions
What devices can this lithium ion battery cell work with?

It suits compact electronics requiring 3.7V power, including wearables, small home gadgets and portable instruments. Confirm dimension and connector match your device before ordering.

How many charge cycles can this li polymer battery handle?

It supports around 500 standard charge-discharge cycles under proper charging conditions. Real service life varies based on discharge current and operating environment.

Can I get samples of this 3.7v wearable device battery?

Yes, sample testing is supported. You may place sample orders to check size, performance and physical fitting for your projects.

Can I customize battery size, capacity or connectors?

Custom options for dimension, capacity and connector types are available. Contact our sales team to share your detailed requirements.

What is the production lead time?

In-stock goods ship within 3-7 days. Custom production orders take 2-3 weeks after order confirmation.

What shipping standards are followed for these lithium batteries?

Batteries are packed in industrial cartons meeting international air and ocean shipping standards for lithium cells.

Is this battery CE compliant?

Yes, this rechargeable lithium polymer battery meets CE requirements for electronic product integration.

What is the maximum discharge rate for this cell?

Standard discharge sits at 0.2C-0.5C, maximum discharge current reaches 1C. Do not exceed 1C continuous discharge for long-term usage.

Quality Assurance & Support

We are a professional lithium battery manufacturer from China. All li polymer battery units go through basic quality checks before shipment. CE compliant cells are built for integration into consumer smart devices. Please follow correct charging specifications for longer service life.

If you receive defective items, please provide photos within valid feedback window for problem assessment. Custom-made items follow agreed project terms. Our support team offers prompt technical assistance for your product integration questions. Sample orders are welcome to validate cell performance ahead of large volume procurement.

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
0%
3 stars
0%
2 stars
0%
1 stars
0%

All Reviews

R
Robert T.
United States May 13.2026
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.
O
Owen
Canada Apr 7.2026
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.
H
Harry
United Kingdom Mar 18.2026
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!