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3.7V 110mAh Li Polymer Battery HZ451819 For Bluetooth Wearable Devices

Name: 3.7V 110mAh Li Polymer Battery HZ451819 For Bluetooth Wearable Devices
Brand: Shenzhen Vats Power Source Limited
SKU: 451819
Price: 1.00 USD
Availability: InStock

Brand Name:	Vats Battery
Model Number:	451819
MOQ:	3 pcs
Price:	$1~1.49
Delivery Time:	7 work days
Payment Terms:	T/T

Detail Information

Product Description

Ratings & Reviews

Detail Information

Place of Origin:

Guangdong, China

Certification:

Cell Type:

Lithium Polymer Battery

Model No.:

HZ451819

Charge Voltage:

4.2V

Nominal Voltage:

3.7V

Dimension:

4.5±0.2mm(T) * 18±0.5mm(W) * 19±2.5mm(L)

Nominal Capacity:

110mAh

Supply Ability:

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

Highlight:

3.7V Li Polymer Battery for Bluetooth

110mAh wearable device battery

HZ451819 lithium polymer battery

Product Description

3.7V 110mAh Li Polymer Battery HZ451819 For Bluetooth Wearable Devices

Product Overview

This compact li polymer battery delivers steady 3.7V power for small wearable electronics, solving short runtime issues for Bluetooth headsets and compact gadgets. Our 3.7V wearable device battery offers customizable sizing to match unique device housing requirements, with full safety certifications for global shipping.

Technical Specifications

Item	Details
Model No.	HZ451819
Cell Type	Lithium polymer battery (li polymer battery)
Dimension	4.5±0.2mm(T) * 18±0.5mm(W) * 19±2.5mm(L)
Nominal Capacity	110mAh, custom capacity/voltage/size available
Nominal Voltage	3.7V
Max Cutoff Voltage	4.35V
Standard Discharge Current	0.2C-0.5C
Max Discharge Current	1C
Connector	JST / Molex, customizable
Cycle Life	Up to 500 charge cycles
Certifications	IEC62133, UN38.3, MSDS
Production Lead Time	2-3 weeks for bulk orders; 3-7 days for in-stock items

Key Advantages

Stable Cycle Performance for Long-Term Use

Concern: Frequent battery replacement raising operational costs

Advantage: 500 full charge-discharge cycle lifespan built into each lithium ion battery cell

Benefit: Your electronic devices maintain consistent power output over months, cutting frequent component replacement costs for your product line.

Fully Customizable Build to Match Your Device Design

Concern: Standard batteries fail to fit custom product casing layouts

Advantage: Custom size, capacity, voltage and connector options for every li polymer battery batch

Benefit: Get a tailored 3.7V wearable device battery that fits your product shell perfectly without extra structural modification.

Global Shipping Compliant Safety Certifications

Concern: Battery shipments blocked by international customs checks

Advantage: All cells come with IEC62133, UN38.3 and MSDS official documents

Benefit: Smooth air and sea freight worldwide without shipping delays or customs hold-ups for your bulk orders.

Factory Direct Supply With Sample Testing Support

Concern: Unverified battery quality risking finished product sales

Advantage: Direct manufacturer supply with free sample testing service for all lithium ion battery cell models

Benefit: Test cell performance with your equipment before placing mass orders to guarantee stable finished product quality.

Flexible Lead Time for Small & Bulk Orders

Concern: Tight inventory deadlines disrupted by long production waits

Advantage: Fast 3-7 day dispatch for stocked li polymer battery units, 2-3 weeks for custom bulk production

Benefit: Adjust order schedules freely to align with your product launch and inventory restock timelines.

Applications

This reliable 3.7V wearable device battery fits a wide range of compact consumer electronics for daily and outdoor use:

Wearable tech: Bluetooth headsets, smart bracelets, portable skin care devices
Travel & commuting gear: Mini GPS navigators, compact car recorders, remote controls
Household gadgets: Small massage tools, electric dental rinsers, handheld sprayers
Portable camera accessories and mini smart home appliances

Every li polymer battery maintains steady low-current discharge ideal for small portable devices used at home, on camping trips or daily commutes.

Frequently Asked Questions

Q1: Can this lithium ion battery cell power my Bluetooth headset?

A1: Yes, this 3.7V wearable device battery is originally engineered for Bluetooth headsets, with mild 0.2C-0.5C standard discharge current matching low-power audio equipment draw.

Q2: Can I customize the size or connector of the li polymer battery?

A2: Absolutely. We adjust thickness, width, length, capacity and fit JST/Molex connectors based on your device drawing requirements.

Q3: What documents come with bulk orders for international shipping?

A3: Every shipment includes complete UN38.3, MSDS and IEC62133 certification files to clear air and ocean customs globally.

Q4: How long is the production lead time for custom bulk orders?

A4: Custom li polymer battery batches take 2 to 3 weeks for production. Standard stocked units ship within 3-7 working days.

Q5: Is sample testing available before mass purchase?

A5: We support sample testing for all lithium ion battery cell models. Reach out to our sales team to arrange test samples for your equipment compatibility check.

Q6: What is the maximum discharge load this 110mAh cell can handle?

A6: The li polymer battery supports a peak 1C discharge current, with stable daily performance at the standard 0.2C-0.5C discharge rate for small electronics.

Q7: How many charge cycles can the battery last?

A7: Each 3.7V wearable device battery holds stable performance for up to 500 full charge and discharge cycles under proper usage.

Q8: What packaging do you use for bulk battery shipments?

A8: Industrial carton packaging that meets international air and sea shipping safety standards to prevent cell damage during transit.

After-sales Guarantee

Manufacturer Quality Assurance: Every li polymer battery undergoes factory performance inspection before shipment, with consistent voltage and capacity control for all lithium ion battery cell batches.
Flexible Order Lead Times: Fast dispatch for stocked inventory, clear production timelines for fully customized 3.7V wearable device battery orders with transparent progress updates.
Complete Shipping Certification Pack: Pre-prepared UN38.3, MSDS and IEC62133 paperwork eliminates customs clearance barriers for global delivery.
Dedicated Business Support Team: Our professional sales team responds to technical and order inquiries within 24 working hours to resolve compatibility and customization questions.
Sample Validation Policy: Request test samples to verify cell performance with your finished devices before committing to large volume orders, reducing product development risks.

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.

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!

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products details

3.7V 110mAh Li Polymer Battery HZ451819 For Bluetooth Wearable Devices

3.7V Li Polymer Battery for Bluetooth

110mAh wearable device battery

HZ451819 lithium polymer battery

Overall Rating

Rating Snapshot

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