What certifications does the battery have?

The battery holds UL, CE, IEC62133, RoHS, and UN38.3 certifications.

Can the dimensions be customized?

Yes, the dimensions can be customized to meet your specific needs.

CE Certificates 904286 3.7V 4000mAh Rechargeable Lithium Polymer Li-Po Battery

Name: CE Certificates 904286 3.7V 4000mAh Rechargeable Lithium Polymer Li-Po Battery
Brand: Shenzhen A&S Power Technology Co., Ltd.
SKU: 2168664935

Guangdong, ChinaShenzhen A&S Power Technology Co., Ltd.

US$4.25

1,000-2,999 Pieces

US$4.05

3,000-4,999 Pieces

US$3.85

5,000-9,999 Pieces

US$3.25

10,000+ Pieces

Product profile

Customization

Available

Type

Lithium-Polymer Battery

Rechargeable

Chargeable

Model NO.

AS 904286 3.7V 4000mAh

Product Name

Rechargeable 3.7V 4000mAh Lithium Polymer Battery

Voltage

3.7V

Capacity

4050mAh

Sample

Samples for Testing Are Available

Welcome

OEM/ODM

Dimension

Can Be Customized

Cycle Life

>500 Times

Warranty

12months

Certificate

UL / IEC62133 / RoHS

Manufacturer

Factory with Over 600 Workers, 100000PCS Per Day

Discharge Rate

Low Discharge Rate

Shape

Square Battery

Installation

Packaged

Nominal Voltage

3.7V

Transport Package

Carton Package

Specification

9.7*47*77.5mm

Trademark

A&S Power

Origin

China

Production Capacity

50000pieces/Month

Key features

High Capacity: 4000mAh nominal capacity for extended usage time.

Long Cycle Life: Over 500 charge-discharge cycles for durability.

Customizable Dimensions: Dimensions can be customized to fit specific device requirements.

Multiple Certifications: Certified with UL, CE, IEC62133, RoHS, and UN38.3.

OEM/ODM Services: Full customization and design support available for clients.

Fast Charging: Supports 1.0C fast charge current for quick power replenishment.

Factory Direct Supply: Manufactured in a facility with 600+ workers and 100k daily capacity.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceYears of Export ExperienceProduct Certification

Shenzhen A&S Power Technology Co., Ltd.

Guangdong, China

Business Type: Manufacturer/Factory, Trading Company, Other CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 14 years CertifiedNearest Port: Shenzhen Port, Hongkong PortAverage Response Time: ≤2.92h

AI-Powered supplier vetting

SummaryThe supplier is identified as a manufacturing-sector trading company in Longhua District, with OEM support for well-known brands, SDK availability, and documented R&D processes. It reports substantial LiFePO4 and lipo battery output, exports to East Asia, Europe, Australia, North America, and domestic markets, and typically fulfills orders within 15 working days during peak season. Customization is offered across several levels, while after-sales handling has documented complaint procedures and corrective-action records. The supplier reports CE, UL, IEC62133, and RoHS certifications, but the provided information does not independently verify them. Innovation evidence is mixed: the supplier has two R&D engineers, two patents, and R&D documentation, but no new products were launched last year. Overseas service infrastructure is limited, with no overseas warehouses, showrooms, agents, or branches. No specific customer names or case studies are provided.

CertificationsThe company description states that its products obtained CE, UL, IEC62133, and RoHS certification. These certifications are explicitly claimed, although no certificate numbers, issuing bodies, or validity details are provided in the slices.

After-Sales capabilityThe supplier has documented procedures and records for complaint handling, service-capability assessment, and corrective/preventive actions, and it offers training as an overseas service. However, it has no overseas warehouses, showrooms, agents, or branches, and the overseas-service country count is stated as zero.

R&D capabilityThe supplier reports SDK availability, two R&D engineers, two patents, R&D design and customization responsibilities, and auditable design input/output, review, verification, and validation documents. Against this, it launched no new products in the past year, so the evidence supports established R&D capability but not recent product-launch activity.

Production capacityReported output is 16.5 million LiFePO4 battery pieces and 26.4 million lipo battery pieces, with peak-season fulfillment within 15 working days and off-season lead time stated as within 15 working days to one month. The supplier also serves multiple international markets, but its quality-control testing equipment count is stated as zero and the quality-assurance and traceability statuses are unknown.

Customization capabilityThe supplier provides OEM services for well-known brands and supports customization from samples, designs, full customization, minor customization, and flexible customization. Its R&D engineers are specifically responsible for designing and customizing products according to customer needs, with supporting R&D documentation available for audit.

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 for 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 to 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 Western Union etc.

Q:Is the battery rechargeable?

Yes, this is a rechargeable Lithium Polymer battery.