What is the lead time for production?

Peak season lead time is one month, while off-season lead time is within 15 workdays.

How are samples and bulk orders shipped?

Samples are sent by Express (DHL/UPS/FEDEX/TNT), while bulk production is shipped by cargo, air freight, or Express.

3.7V 3500mAh Li-Polymer Battery 685575

Name: 3.7V 3500mAh Li-Polymer Battery 685575
Brand: SHENZHEN HONGYUAN ENERGY TECHNOLOGY CO., LTD.
SKU: 741122762

Guangdong, ChinaSHENZHEN HONGYUAN ENERGY TECHNOLOGY CO., LTD.

US$3.85-4.15

1,000 Pieces

Sample price:US$4.50/piece.Request sample

Product profile

Customization

Available

Type

Li-Polymer Battery

Charger Type

Standard Charger

Model NO.

li-polymer685575-3500mAh-3.7V

Charger Application

Tablet, Laptop, Video Game Player, MP3/MP4 Player, Camera, Standard Battery

Nominal Voltage

3.7V

Charger Style

Simple Charger

Compatible Battery Type

6-Volt

Size

T:6.9mmxw:55.5mmx77.5mm

Certification

Socket Type

China

Recyclable

Transport Package

Industrial Packing,

Specification

3.7V

Trademark

HYGN

Origin

China

HS Code

8507600090

Production Capacity

100000 Piece/Pieces Per Month

Key features

Customizable Battery Pack: Customized sizes, packs, tags, labels, plugs, connectors, and protection features available.

High Capacity & Performance: 3500mAh capacity with low inner resistance, long cycle life, and low self-discharge rate.

Low Temp & Rapid Charging: Good performance in low temperatures with rapid charge-discharge cycle life.

Stable Discharge: Stable capacity, steady discharge, and reliable high temperature discharge performance.

Safety Protections: Includes over current protection and temperature control protection for safety.

Wide Application Range: Suitable for robots, laptops, cameras, MP3/MP4 players, and portable electronics.

Certified Quality: Products certified with CE and UL standards for quality assurance.

Flexible Shipping Options: Samples sent by Express (DHL/UPS), bulk production by cargo, air freight, or Express.

Company profile

SHENZHEN HONGYUAN ENERGY TECHNOLOGY CO., LTD.

Guangdong, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2017-01-18Nearest Port: SHENZHENAverage Response Time: ≤1.47hTerms of Payment: T/T, PayPalInternational Commercial Terms(Incoterms): FOB, CIF, EXW

AI-Powered supplier vetting

SummaryEcorecycle demonstrates broad customization, ODM capability, OEM service for known brands, recent product development, and a stated R&D focus covering multiple battery types. Its certifications include ISO 9000, ISO 9001, ISO 14001, and ISO 20000; it reports 50 quality-control staff and four production lines. However, service-management weaknesses are evident because complaint handling, corrective and preventive actions, and supplier-service assessment lack written procedures or records. The supplier has no overseas warehouse, showroom, agent or branch, and no offline trade-show participation. Financial credibility cannot be confirmed because the provided financial indicators are all zero. Export experience is documented from 2017, with 90% of sales from exports and Shenzhen Port identified as the nearest port.

Supplier typeThe supplier presents itself as an R&D-oriented manufacturer offering ODM, OEM for known brands, and multiple battery-product development activities. It also reports export operations since 2017 and 90% of sales from exports, indicating an internationally oriented manufacturing supplier.

CertificationsThe supplier reports holding ISO 9000, ISO 9001, ISO 14001, and ISO 20000 certifications. These explicitly documented certifications support a positive assessment of its formal management-system coverage.

After-Sales capabilityThe supplier has no written procedures or records for effective complaint handling, corrective and preventive actions, or service-capability assessment. It also reports no overseas warehouse, showroom, agent or branch, although it states peak- and off-season lead times are within 15 working days.

Financial creditThe provided records for 2024 and the stated one- to three-year periods show zero operating revenue, zero gross margin or gross profit, and zero current ratio. These figures do not support financial strength, although the slices do not explain whether they reflect actual performance or incomplete reporting.

R&D capabilityThe supplier reports new products during the past year, ODM capability, and R&D development of high- and low-temperature batteries, backup power, green power, BMS, iron-lithium, and lithium-titanate batteries. It also reports 6–10 years of total R&D engineer experience, but no available SDK is stated.

Production capacityThe supplier reports OEM service for known brands, four production lines, and 50 quality-control staff. The stated lead time is within 15 working days in both peak and off-season, providing explicit evidence of organized production capacity, although output volume is not provided.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. It also provides ODM service, indicating broad product-development and customization coverage.