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High Capacity 103665 3.7V 3000mAh Lithium Polymer Battery Custom Size Soft Pack Lithium Cell

Name: High Capacity 103665 3.7V 3000mAh Lithium Polymer Battery Custom Size Soft Pack Lithium Cell
Brand: Shenzhen Vats Power Source Limited
SKU: 103665
Price: 2.98 USD
Availability: InStock

Brand Name:	VATS Battery
Model Number:	103665
MOQ:	10 units
Price:	$2.98~3.46
Delivery Time:	7 work days
Payment Terms:	T/T

Detail Information

Product Description

Ratings & Reviews

Detail Information

Place of Origin:

China

Certification:

CE/UN38.3

Model:

103665

Charging Voltage:

4.2V

Voltage:

3.7V

Size:

10*36*65mm

Capacity:

3000mAh

Weight:

5.2g

Supply Ability:

In stock: 7 working days/Out of stock: about 30 working days

Highlight:

3.7V 3000mAh lithium polymer battery

medical digital equipment lithium cell

soft pack high capacity battery

Product Description

High Capacity 103665 3.7V 3000mAh Lithium Polymer Battery Custom Size Medical Digital Equipment Soft Pack Lithium Cell

Factory ISO9001 Certified 103665 3.7V 3000mAh Long Cycle Lithium Polymer Battery For Medical Digital GPS Devices

Product Specification & Core Features

Our 103665 lithium polymer battery is independently manufactured by Shenzhen VATS Power Source Limited with complete ISO9001 quality management certification. Its precise dimension is 10±0.2mm thickness, 36±0.5mm width and 65±2.5mm length, delivering steady 3.7V nominal voltage and 3000mAh rated capacity.

The battery supports flexible customization of sizes, capacities and output voltages to match diverse device demands. It adopts standard 0.2C-0.5C continuous discharge with 1C peak discharge limit, compatible with JST and Molex connectors that can be freely selected as client requests. The cell achieves 500 full charge-discharge cycles without obvious capacity attenuation, balancing compact soft-pack structure and stable power output, ideal for lightweight portable electronics.

Complete Product Parameter Table

Item	Detailed Parameter
Battery Model	103665
Cell Category	Lithium Polymer Soft Pack Cell
Overall Dimension	10±0.2 * 36±0.5 * 65±2.5mm (T * W * L)
Nominal Capacity	3000mAh, Customizable Capacity Supported
Standard Rated Voltage	3.7V
Full Charge Cutoff Voltage	4.35V
Standard Discharge Rate	0.2C-0.5C
Maximum Allowable Discharge Rate	1C
Optional Connector	JST, Molex Custom Connector
Service Cycle Life	500 Charge & Discharge Cycles

Wide Application Matching Advantages

This 103665 polymer lithium cell fits multiple mainstream portable electronic scenarios with outstanding compatibility. It works reliably for daily digital gadgets, professional medical facilities and high-precision GPS positioning equipment.

Besides, it supplies stable power for portable power banks, beauty salon beauty equipment, electronic toys and small electronic cigarettes. The compact slim size saves internal installation space of end products, while consistent discharge performance avoids sudden power failure during device operation.

Customizable electrical parameters allow tailored power solutions for startup brands and mass production manufacturers, with fast sample testing service to verify application adaptability before bulk orders.

Strict Safety & Shipping Protection Performance

All production links follow ISO9001 standardized quality control to eliminate hidden safety hazards inside cells. The soft polymer packaging layer resists short circuit risks under normal use, with controlled charge cutoff voltage to prevent overcharging damage.

Products use industrial carton packaging that fully complies with international air freight and ocean shipping standards, meeting UN transportation battery regulations without safety inspection barriers.

As direct factory manufacturer, every batch undergoes strict finished product testing including cycle aging, voltage stability and insulation tests. No overheating, bulging or leakage issues occur within standard discharge current range, providing long-term safe power supply for end-user devices.

Frequently Asked Questions

Q1: Are you direct battery manufacturer instead of trading company?

A1: Yes, VATS BATTERY is a professional lithium polymer battery manufacturer based in Shenzhen with independent production workshop and quality inspection lab.

Q2: Can customers get sample test for this 103665 model?

A2: Sample testing service is fully supported for clients to test performance before mass order placement.

Q3: What is the production lead time for bulk orders and stock items?

A3: Stock batteries can be delivered within 3-7 days; customized bulk orders take 2 to 3 weeks after deposit confirmation.

Q4: Can I customize connectors, capacity or voltage of this cell?

A4: Full customization on size, capacity, voltage and connector types is available as clients' technical drawings.

Q5: Does the packaging meet global cross-border logistics standards?

A5: Our industrial carton package passes international air and sea battery transport standards for smooth worldwide delivery.

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.

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