What is your payment term?

30% deposit in advance, and balance paid before delivery arranged.

How do you control the quality?

We have established a comprehensive quality control system (including IQC, IPQC, and OQC) that spans incoming materials, manufacturing processes, and finished products.

Do you have any distributors or agents out of China?

Currently no but we are seeking cooperation with them now.

Durable 21700 3.7V 8000mAh Rechargeable Battery for Solar Energy Storage

Name: Durable 21700 3.7V 8000mAh Rechargeable Battery for Solar Energy Storage
Brand: Dongguan APTPES Co., Ltd.
SKU: 2135093162

Guangdong, ChinaDongguan APTPES Co., Ltd.

US$7.50-8.50

5,000 Pieces

Product specifications

21700-3.7v 8Ah

Sample price:US$10.00/piece.Request sample

Product profile

Customization

Available

Type

Li-ion Battery

Cathode Material

NCM

Model NO.

21700-3.7v 8Ah

Rechargeable

Yes

Size

Medium

Application

Solar Energy Storage

Safety Certification

MSDS/Un38.3

Nominal Voltage

3.7V

Charge Voltage

4.2V

Battery Weight

280g

Connector

Jst/Molex/Other Available

Cycle Life

500 Times

Warranty

2 Years

Product Dimensions

74*46*25mm

Certification

CE, UL, Kc, CB

Protection

Overcharge/Over-Discharge

Capacity

8000mAh

Brand

Aptpes or OEM

Configuration

1s2p

Feature

Long Endurance

Transport Package

Battery Case

Specification

Customized

Trademark

APTPES

Origin

China

HS Code

8507600090

Production Capacity

10000PCS/Day

Key features

High Capacity Energy Storage: 8000mAh capacity with 3.7V nominal voltage designed for solar energy storage applications.

Comprehensive Safety Certifications: Certified with CE, UL, Kc, CB, MSDS, and UN38.3 for global export safety compliance.

Long Cycle Life Performance: Delivers over 500 charge cycles ensuring long-term reliability for energy storage systems.

Customizable Connector Options: Supports Jst, Molex, or other available connector types based on specific requirements.

OEM and ODM Services: Full customization available including brand, design, and specifications for tailored solutions.

Robust Protection System: Built-in protection against overcharge and over-discharge to ensure battery safety.

Large Scale Manufacturing: Monthly production capacity exceeds 3.5 million batteries with 200 advanced machines.

Professional R&D Team: Over 20 years of experience in electrochemical field driving technological innovation.

Company profile

Product CertificationStandardized quality controlOEM ServicesR&D Capabilities

Dongguan APTPES Co., Ltd.

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc.Average Response Time: ≤0.66h CertifiedTerms of Payment: T/T, LC, PayPal, etc. CertifiedInternational Commercial Terms(Incoterms): FOB, EXW, CIF, CFR

AI-Powered supplier vetting

SummaryThe supplier demonstrates broad product development and customization capabilities, including 3D design, ODM, OEM for popular brands, and multiple customization modes. Its R&D organization includes specialized engineers, documented design controls, and evidence of new product development. Quality and service processes are documented and followed for complaints, corrective actions, supplier assessment, and finished-product inspection. Manufacturing support includes valid contracts with associated subcontractors and inventory capability, while export experience is stated as eight years with 51%–70% of sales from exports. Overseas service infrastructure is limited: the supplier has no overseas warehouse, showroom, agents, or branches, and reports zero countries served through such capabilities. Financial credibility cannot be assessed from the provided information.

Supplier typeThe supplier provides comprehensive energy solutions spanning project initiation, development, testing, production, and after-sales service. It also offers ODM services, OEM services for popular brands, inventory capability, and contracted manufacturing support, indicating a manufacturer with integrated development and production-related services.

After-Sales capabilityThe supplier has a documented and followed customer-complaint procedure, and its technology engineers provide technical support for production and after-sales service. The company description also explicitly includes after-sales service within its comprehensive solution coverage, supporting an established after-sales process.

R&D capabilityThe supplier reports new products during the past year, maintains an R&D team with masters and senior engineers across electronics, power supply, structure, technology, and electrochemistry, and retains auditable design input, output, review, verification, and validation documents. It also emphasizes technological innovation and applies technology from chip and cell-manufacturing partners to product R&D; however, no SDK is available.

Production capacityProduction-related controls include quality assurance, documented finished-product inspection instructions that are uniformly followed, valid manufacturing contracts with associated subcontractors, inventory capability, and stated average lead times of within 15 working days off-season and one month during peak season. These records support production and quality-control capability, although the stated quantity capability for own-brand products is only “1” and is not sufficiently defined for a capacity comparison.

Customization capabilityThe supplier offers customization from samples and designs, full, minor, and flexible customization, as well as 3D software design, ODM, and R&D-supported technical services. Engineers confirm customer requirements and support new product development, providing explicit evidence of broad customization capability.

Client casesThe supplier states that it maintains long-term, stable cooperation with world-renowned chip companies and cell manufacturing enterprises and provides OEM services for popular brands. It also reports participation in the GIFT & HOME Exhibition, but no specific customer names, project details, or independently verifiable case outcomes are provided.

Product Q&A

Q:Are you a trading company or factory?

We're ISO manufacturer with 12000m2 workshop and monthly capacity of 3.5 million lithium battery cells.

Q:Do you have any certifications?

Yes. We have certifications like CE, UL, KC, CB, IEC, UN38.3, MSDS etc. Available for export.

Q:Do you provide OEM and ODM services?

Yes OEM and ODM are both available.

Q:How can I get a sample?

You can place a sample order so that we can proceed it until you get it.

Q:What is the lead time?

With item in stock, we can arrange delivery right away. If we don't have stock, we will estimate the lead time according to your specs, quantity and other requirements. In a word, we will do our best to ensure delivery in time for you.