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21700 3.7V Rechargeable Lithium Ion Battery Packs Cylindrical Cell for Power System

Name: 21700 3.7V Rechargeable Lithium Ion Battery Packs Cylindrical Cell for Power System
Brand: Hubei Everwin New Energy Co., Ltd.
SKU: 2141777342

Hubei, ChinaHubei Everwin New Energy Co., Ltd.

US$1.50

50-999 Pieces

US$1.20

1,000-4,999 Pieces

US$0.90

5,000-19,999 Pieces

US$0.70

20,000+ Pieces

Sample price:US$5.00/piece.Request sample

Product profile

Type

Li-ion Battery

Cathode Material

LCO

Rechargeable

Yes

Model NO.

21700

Size

Medium

OEM& ODM

Available

Warranty

24months

Operating Temperature

-20℃~ 60℃

Voltage

3.7~4.2V

Transport Package

Inner Box

Trademark

Everwin

Origin

China

HS Code

8507600090

Key features

Long Cycle Life: Rechargeable over 2000 times with low self-discharge rate.

OEM & ODM Service: Full customization available including logo and design.

Multiple Certifications: Certified by CE, RoHS, IEC, CB, UL, and ISO9001.

Fast Quotation: Quotation provided within 8 hours of inquiry.

Sample Availability: Free samples for non-custom orders; refundable for bulk.

Safety Protection: Built-in protection against overcharging and short circuits.

Versatile Applications: Suitable for flashlights, toys, medical devices, and more.

Company profile

Importers and ExportersFast DeliveryFull Customization100% Finished Products Inspection

Hubei Everwin New Energy Co., Ltd.

Hubei, China

Business Type: Manufacturer/Factory CertifiedCustomization Options: Full Customization, Flexible customization, etc. CertifiedExport Year: 1 Year CertifiedNearest Port: Shanghai PortAverage Response Time: ≤1.19h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryThe supplier is described as a comprehensive lithium battery manufacturer with stated experience in R&D, design, production, sales, and services. It offers full, minor, and flexible customization, and accepts multiple quotation and payment terms. However, the evidence indicates limited operational infrastructure: one quality inspector, no inventory, overseas warehouse, showroom, agent, or branch capability, and no participation in offline trade shows. Quality controls include a stated quality assurance system, but finished products are checked by packing staff, raw materials lack traceability identification, and complaint handling and corrective-action procedures are undocumented. Innovation evidence is weak because no new product was reported in the past year and ODM, OEM, and SDK services are unavailable. Financial records provided show zero values for reported revenue, costs, profits, and cash-flow items, which raises concerns but does not independently establish the cause.

Supplier typeThe supplier is described as a comprehensive lithium battery manufacturer covering R&D, design, production, sales, and services. Its listed business scope also includes distribution and control equipment, mechanical and electrical equipment, batteries, charging piles, photovoltaic equipment, electronic materials, and domestic trade agency, indicating a diversified energy and equipment-oriented supplier profile.

After-Sales capabilityAfter-sales and service infrastructure appears limited: there is no written service-capability assessment or corrective-action procedure, no approved service-supplier list, no inventory, overseas warehouse, showroom, agent, or branch, and no overseas service countries reported. Complaint handling also lacks written procedures or records, although stated peak- and off-season lead times are both one month.

R&D capabilityThe company description claims R&D and design activities and more than 15 years of experience, but the supplier reported no new product in the past year. It also does not provide ODM services, OEM services for popular brands, or an available SDK, so current evidence of product innovation and integration capability is limited.

Customization capabilityThe supplier explicitly reports full customization, minor customization, and flexible customization capabilities. This directly supports a broad ability to adapt products or designs to customer requirements.

Product Q&A

Q:Are you a manufacturer or a trading company?

Hubei Everwin New Energy Co., Ltd. is a comprehensive lithium battery manufacturer with over 15 years of experience, specializing in the R&D, design, production, sales, and services of lithium-ion batteries.

Q:When can I get the quotation?

We usually quote within 8 hours after receiving your inquiry. If you are very urgent, please call us or tell us in your e-mail so that we will regard your inquiry priority.

Q:Can I get a sample before placing an order?

For non customized sample, we will offer free sample but charge for Express fee. If need customized sample, we will charge for sample fee and express fee. When you place bulk order, we will refund you sample fee.

Q:Can I customize my own logo?

Absolutely, OEM& ODM are warmly welcome!

Q:What is your MOQ?

Non-custom battery no MOQ, any quantity is avaliable.