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3.7V 120mAh li polymer battery 401035 for wearable wireless electronics

Name: 3.7V 120mAh li polymer battery 401035 for wearable wireless electronics
Brand: Shenzhen Vats Power Source Limited
SKU: 401035
Price: 0.94 USD
Availability: InStock

Brand Name:	Vats Battery
Model Number:	401035
MOQ:	3 pcs
Price:	$0.94~1.5
Delivery Time:	7 work days
Payment Terms:	T/T

Detail Information

Product Description

Ratings & Reviews

Detail Information

Place of Origin:

Guangdong, China

Certification:

Model No.:

HZ401035

Cell Type:

Lithium Polymer Battery

Dimension:

4±0.2 _10±0.5_ 35±2.5 Mm

Nominal Capacity:

120mAh

Nominal Voltage:

3.7V

Charge Voltage:

4.2V

Supply Ability:

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

Highlight:

3.7V 120mAh lithium polymer battery

401035 li polymer battery for wearables

wireless electronics rechargeable battery with warranty

Product Description

3.7V 120mAh Li Polymer Battery 401035 for Wearable Wireless Electronics

This reliable li polymer battery, model 401035, serves as a stable 3.7V wearable device battery for compact wireless gadgets. It delivers steady 120mAh power output to avoid sudden power loss during daily use. Customizable specs and interchangeable connectors fit most small consumer electronics. As a factory direct lithium ion battery cell, it supports sample testing for bulk buyers to verify performance before large orders.

Specifications

Item	Details
Model No.	HZ401035
Cell Type	Lithium polymer battery
Dimension	4±0.2 × 10±0.5 × 35±2.5 mm (Thickness × Width × Length)
Nominal Capacity	120mAh, customizable capacity/size/voltage available
Nominal Voltage	3.7V
Full Charge Cutoff Voltage	4.2V
Discharge Current Range	Standard: 0.2C-0.5C, Max: 1C
Connector Option	JST / Molex, customizable per request
Cycle Lifespan	Up to 500 charge-discharge cycles
Production Lead Time	Bulk: 2-3 weeks, In-stock items: 3-7 days

Key Features

Stable long cycle service life - completes 500 full charge cycles without obvious capacity decay
Fully customizable configuration - adjustable size, capacity, voltage and JST/Molex connectors
Factory direct supply with sample support for performance verification
Standard safe global shipping package meeting international air and sea transport standards

Applications

This 120mAh li polymer battery fits all compact wireless and portable consumer electronics:

Daily wearable gear: smart bracelets, blackhead cleansing devices, handheld massagers
Vehicle & navigation gear: car dash cameras, portable GPS navigators
Household small appliances: compact dental rinsers, handheld sprayers, remote controls
Portable digital devices: mini digital cameras and small smart home accessories

Perfect for commuting, indoor daily use, short outdoor trips and small portable smart products.

Frequently Asked Questions

Can I test this li polymer battery with samples before bulk purchase?

Yes, sample testing service is fully supported for all clients to check the 3.7V wearable device battery performance.

How long is the lead time for mass orders?

Custom bulk orders take 2-3 weeks for production. Ready-in-stock lithium ion battery cell units ship within 3-7 working days.

What connector types can I choose for the battery?

Standard options include JST and Molex connectors. We can install custom connector terminals based on your device requirements.

How many charge cycles can this 120mAh li polymer battery last?

It holds steady performance for up to 500 standard charge and discharge cycles for long-term device use.

Is custom voltage, capacity or size available for this battery model?

Absolutely. We adjust dimension, nominal voltage and capacity to match your wireless electronic product demands.

What maximum discharge current does this cell support?

Standard discharge current ranges from 0.2C to 0.5C, with a safe maximum discharge current of 1C.

Does the package meet international air shipping rules?

All lithium polymer batteries are packed in industrial cartons compliant with global air and marine shipping regulations.

After-sales Guarantee

All our li polymer battery units go through strict factory performance inspection before delivery. We provide professional technical support to resolve compatibility and installation issues for your 3.7V wearable device battery.

If you receive defective lithium ion battery cell items from production defects, our customer team arranges replacement solutions quickly. Our factory team offers consistent technical consultation for bulk clients' long-term product matching needs. All packaging follows cross-border shipping standards to lower risk of transit damage.

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

Markus K.

Germany May 15.2026

Helpful (45)

Ich war anfangs echt ein bisschen skeptisch, weil man im Netz ja viel zu hören bekommt, wenn es um Li-Polymer-Akkus geht. Aber der originale E66 Akku hier? Junge, Junge... das Teil ist ein Biest! Ich habe die Zelle jetzt seit ein paar Wochen in meinem DIY-Solar-Projekt verbaut und ausgiebig getestet. Was soll ich sagen: Die 66ah sind absolut real, kein Fake-Wert! Die Kapazität ist stabil, die Spannung von 3.7V bleibt auch unter Last super konstant und das Teil wird beim Laden kaum handwarm. Man merkt einfach sofort, dass die Verarbeitungsqualität stimmt und das PCB-Schutzboard ordentlich mitgedacht wurde. Für den Preis kriegt man hier in Deutschland aktuell kaum was Besseres. Versand war auch fix, Verpackung war bombensicher – so muss das laufen! Wer verlässliche Power sucht, kann hier echt bedenkenlos zugreifen. Von mir gibt's eine klare Kaufempfehlung und verdiente 5 Sterne. Daumen hoch!

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.

Tags:

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High Discharge Lipo Battery

Ultra Thin Lipo Battery

Round Lipo Battery

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Li Ion Battery Pack

LiFePO4 Battery Pack

High Temperature Lipo Battery

Custom Lipo Battery

products details

3.7V 120mAh li polymer battery 401035 for wearable wireless electronics

3.7V 120mAh lithium polymer battery

401035 li polymer battery for wearables

wireless electronics rechargeable battery with warranty

Overall Rating

Rating Snapshot

All Reviews

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