What is the maximum charge voltage?

The maximum charge voltage is 4.23V, with a standard charge voltage of 4.2V.

How much does the cell weigh?

The cell weighs approximately 50.0g.

Factory Supply USB Battery 18650 3.7V 3300mAh Lithium Rechargeable Battery

Name: Factory Supply USB Battery 18650 3.7V 3300mAh Lithium Rechargeable Battery
Brand: Shenzhen Tcbest Battery Industry Co., Ltd.
SKU: 931072585

Guangdong, ChinaShenzhen Tcbest Battery Industry Co., Ltd.

US$1.20

500-1,999 Pieces

US$1.15

2,000-4,999 Pieces

US$1.12

5,000-9,999 Pieces

US$1.10

10,000+ Pieces

Sample price:US$1.20/piece.Request sample

Product profile

Customization

Available

Type

Lithium Battery

Charger Type

Electric Charger

Model NO.

ICR18650

Charger Application

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

Nominal Voltage

Charger Style

Simple Charger

Compatible Battery Type

Icr18650

Size

Icr18650

Certification

KC, PSE, CTIA, RoHS, TUV, CB, CE

Socket Type

for All

Recyclable

Transport Package

Carton

Specification

18*65mm

Trademark

PVC

Origin

China

HS Code

8507600090

Production Capacity

700000/Day

Key features

High Capacity Battery: Provides 3300mAh capacity with 3.7V nominal voltage for reliable power supply.

Wide Certification: Certified by KC, PSE, CTIA, RoHS, TUV, CB, and CE for global safety standards.

Fast Charging: Fully charges in approximately 2.5 hours with a standard charge current of 520mA.

Versatile Compatibility: Suitable for tablets, laptops, game players, MP3/MP4 players, cameras, and standard batteries.

Eco-Friendly Design: Recyclable lithium-ion battery construction supporting environmental sustainability.

Robust Performance: Supports max discharge current of 5200mA (2.0C) and operates in wide temperature ranges.

Large Scale Supply: Factory output exceeds 3 million pieces per day with over 500 employees and 10 lines.

Flexible Payment: Accepts T/T, L/C, D/P, PayPal, Western Union, and other convenient payment methods.

Company profile

Importers and ExportersSelf-branded

Shenzhen Tcbest Battery Industry Co., Ltd.

Guangdong, China

Business Type: Manufacturer/FactoryExport Year: 2010-12-01Nearest Port: Shenzhen , HK, GuangzhouAverage Response Time: ≤2.36hTerms of Payment: LC, T/T, D/P, etc.International Commercial Terms(Incoterms): FOB, CFR, CIF, DAT, FAS, DDP, DAP, CIP, CPT, FCA, EXW, Others

AI-Powered supplier vetting

SummaryThe supplier is identified as a trading company, while the materials also describe two factories, imported production machinery, and factory-management procedures. It demonstrates broad customization and ODM capability, has two R&D engineers, and launched new products during the past year. Quality-related controls include raw-material traceability, written warehouse procedures with records, two quality inspectors, three testing devices, and random finished-product inspection. Supplier-service procedures and corrective/preventive-action records are documented, with 20 qualified service-capable suppliers. Overseas service infrastructure is limited: there are no overseas warehouses, showrooms, agents, or branches, and the stated overseas-service country count is zero. The supplier has participated in the China Import and Export Fair and reports OEM service for well-known brands. Evidence is insufficient for certification holding and after-sales capability, while financial information is present only as year...

After-Sales capabilityTwo technology engineers are responsible for providing technical support for after-sales service, which is direct evidence of some technical after-sales support. However, the supplier has no overseas warehouse, showroom, agent, or branch, and no broader service performance or response-capability evidence is provided.

R&D capabilityThe supplier reports new products during the past year, offers ODM services, and has two R&D engineers responsible for new product development and technical support. It does not have an available SDK, but the documented product-development activity supports a positive assessment of innovation capability.

Production capacityEvidence includes imported main production machinery from Canada, fast-production claims, factory-management regulations covering two factories, written warehouse quality procedures with records, two quality inspectors, three testing devices, and 20 qualified service-capable suppliers. These indicators support production and operational capability, although production volume and capacity metrics are not provided.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. ODM service is also available, providing strong direct evidence of broad customization capability.

Client casesThe supplier reports OEM service for well-known brands and participation in the China Import and Export Fair. These are customer or market-engagement indicators, but no brand names, project details, volumes, or independently verifiable case descriptions are supplied.

Product Q&A

Q:Where can I get the price?

We usually quote within 24 hours after we get your inquiry. If you are very urgent to get the price, please call us or tell us in your email so that we'll regard your inquiry priority.

Q:How can I get a sample to check your quality?

After price confirmation, you can require some samples to check our quality.

Q:What about the lead time for mass production?

Honestly, it depends on your order quantity and the season you place the order. We suggested that you start inquiry two months before the date you would like to get the products at your country.

Q:What is your terms of payment?

We accept T/T and L/C.

Q:What is the typical capacity of this battery?

The typical capacity is 2600mAh, with a minimum capacity of 2500mAh under 0.2CmA discharge.