Is it OK to print my logo on the battery?

Yes. Please inform us formally before production and confirm the design based on our sample.

Do you offer a guarantee for the products?

Yes, we offer a one-year warranty to the Li-ion battery products.

How do you deal with faulty products?

Defective rate is less than 0.2%. During warranty, we send new batteries for small quantities or repair/resend defective batches.

21700 5000mAh Cylindrical Li-ion Cell for Glare Flashlight

Name: 21700 5000mAh Cylindrical Li-ion Cell for Glare Flashlight
Brand: Howell Energy Co., Ltd.
SKU: 1959649341

Guangdong, ChinaHowell Energy Co., Ltd.

US$1.20-2.15

1,000 Pieces

Sample price:US$2.20/piece.Request sample

Product profile

Customization

Available

Type

Li-ion Battery

Cathode Material

NCM

Model NO.

21700 3.7V 5000mAh

Rechargeable

Yes

Size

Small

Weight

68g

Max Charge Voltage

4.2V

Max Discharge Voltage

2.75V

Standard Charge

0.2c

Standard Discharge

0.2c

Maximum Continuous Charge Current

1.0c

Maximum Continuous Discharge Current

1.5c

Charge Temperature

0~45 Degree

Discharge Temperature

-20~60 Degree

Storage Temperature

-20~40 Degree

Cycle Life

>800 Cycles

Certificate

CE/RoHS/UL/IEC/CB/Bis/Un38.3/MSDS

Transport Package

130 Per Carton

Specification

21.5*70mm

Trademark

OEM

Origin

China

HS Code

8507600090

Production Capacity

1000000PCS Per Day

Key features

High Capacity & Energy Density: 5000mAh capacity with NCM cathode material for superior gravimetric energy density.

Long Cycle Life: Expected cycle life exceeds 1000 cycles, ensuring long-term reliability.

Comprehensive Certifications: Certified with CE, UL, RoHS, UN38.3, IEC62133, and BIS for global safety standards.

Versatile Applications: Ideal for EVs, solar storage, medical devices, and portable electronics.

Low Self-Discharge Rate: Maintains charge with less than 3% monthly self-discharge for stable storage.

Flexible Customization: Supports full customization including logo printing and design adjustments.

Safe & Green Energy: No toxic materials, no memory effect, and strict quality control with <0.2% defect rate.

Company profile

100% Finished Products InspectionStandardized quality controlFull CustomizationManagement Certification

Howell Energy Co., Ltd.

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 15 Years CertifiedNearest Port: Shenzhen Port, Hong Kong PortAverage Response Time: ≤4.06h CertifiedTerms of Payment: LC, T/T, PayPal, etc.

AI-Powered supplier vetting

SummaryHowell Energy Co., Ltd. is a high-tech enterprise with over 23 years of experience in the R&D and marketing of lithium rechargeable batteries. The company offers various customization options but lacks ODM and OEM capabilities for well-known brands. It has ISO9001:2015 certification, indicating a focus on quality management. However, the company lacks documented after-sales service procedures and corrective mechanisms. Financial details are available, but no specific contracts with subcontractors or overseas facilities are noted. Howell Energy participates in trade shows like CES, indicating active industry involvement.

Supplier typeThe supplier is a high-tech trade company specializing in lithium rechargeable batteries, with a combined company type.

CertificationsThe supplier holds the ISO9001:2015 certification, indicating adherence to quality management standards, along with CE and UL certifications.

After-Sales capabilityThe supplier lacks written procedures or records for handling customer complaints and corrective actions, indicating a deficiency in after-sales service capability.

R&D capabilityThe supplier has R&D capabilities with new products developed in the past year, although it does not offer ODM services.

Customization capabilityThe supplier offers a wide range of customization services, including full and minor customization.