What certifications are provided?

Most models come with CE, CB, KC, MSDS, and UN38.3 certificates. Custom designs may require additional fees for certification.

How do you handle quality problems?

Customers should send photos/videos and return the defective battery. Our engineers analyze it within 2 working days to arrange free repair or replacement.

What is the cycle life of the battery?

The battery has a cycle life of over 500 times, maintaining 80% of its prime capacity after repeated charging and discharging.

Rechargeable Lithium Cell 18650 3.7V 2600mAh Solar Li-ion Battery with PCM & Connector

Name: Rechargeable Lithium Cell 18650 3.7V 2600mAh Solar Li-ion Battery with PCM & Connector
Brand: Shenzhen Resky Electronics Co., Ltd.
SKU: 683812191

Guangdong, ChinaShenzhen Resky Electronics Co., Ltd.

US$1.20-1.80

20 Pieces

Sample price:US$2.00/piece.Request sample

Product profile

Customization

Available

Type

Li-ion Battery

Cathode Material

NCM

Model NO.

RSK-18650-2600-2

Rechargeable

Yes

Size

Small

Cell

18650 2600mAh Battery Cells

Structure

Single Battery

Charging Cut-off Voltage

4.2V

Charging Current

Discharging Cut-off Voltage

Continuous Discharging Current

Peak Discharging Current

Wh

10W

Weight

53G

Cycle Life

500cycles

Shipping

UPS, DHL, FedEx, TNT, by Air, by Sea

Certification

CE,RoHS,MSDS,Un38.3

Delivery

Within 15 Workdays

Warranty

12months

Transport Package

Standard Exporting Package

Specification

18*68mm

Trademark

OEM

Origin

Shenzhen

HS Code

8507600090

Production Capacity

200000PCS

Key features

Customizable Battery Packs: Customized cells, connectors, and protection boards available based on specific requirements.

Comprehensive Safety Certifications: CE, RoHS, MSDS, UN38.3, CB, KC certified for safe international shipping and usage.

1-Year Warranty Coverage: Free repair or replacement for non-human factor quality defects within 12 months.

High Cycle Life Performance: Over 500 charging cycles with 80% prime capacity retention for long-term durability.

Wide Application Compatibility: Suitable for solar lights, power banks, electric vehicles, medical devices, and tools.

100% Pre-Delivery Inspection: Strict quality control including inner resistance, discharge platform, and self-discharge checks.

Flexible Payment Options: Accepts T/T, PayPal, Western Union, and other methods for small or large orders.

Fast Sample Availability: Samples available within 7-10 days; free samples offered for quantities under 3 pcs.

Company profile

High Repeat Buyers ChoiceIn-stock CapacityFast DeliveryR&D Capabilities

Shenzhen Resky Electronics Co., Ltd.

Guangdong, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2012-09-09Nearest Port: SHENZHEN, HONGKONGAverage Response Time: ≤2.90hTerms 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

SummaryShenzhen Resky Electronics Co., Ltd. is identified as a China-based limited company with both trading and manufacturing/factory characteristics, offering electric vehicle batteries, lithium batteries, RC LiPo batteries, Li-polymer batteries, and chargers. It reports ISO 9001 certification, six to ten quality-control staff, stated annual lithium battery pack output of 2,000,000 sets, and broad export coverage. The supplier supports customization from designs and samples, full and flexible customization, and minor customization. Its R&D function includes one engineer responsible for customer-request confirmation, technical after-sales support, and new product development; relevant R&D audit documents are available, but no SDK is available. It reports OEM service for well-known brands, although no specific customer names or case details are provided. Financial records are indicated for 2021–2023, but the supplied slices do not provide sufficient financial metrics for a substantive credit assessment. An...

Supplier typeThe supplier is described as a limited company based in Shenzhen, China, with both "Trading Company,Manufacturer/Factory" characteristics in one record and "Trading Company" in another. Its stated business scope includes technical development, electronic and solar-energy products, polymer lithium batteries, domestic trade, and import/export activities, indicating a trading-led business with manufacturing/factory capability also reported.

CertificationsThe supplier reports ISO 9001 certification. A BV audit is also recorded, with an audit report period from January 30, 2024 to January 29, 2025; however, the supplied slices do not explain the audit result code or confirm that the certification remains current beyond that period.

After-Sales capabilityThe stated R&D engineer responsibilities include providing technical support for after-sales service, which is direct evidence of technical after-sales support. The supplier also reports in-stock service capacity, but the slices do not establish the breadth, response time, staffing level, or formal service process.

R&D capabilityThe supplier reports one R&D engineer responsible for confirming customer requirements, technical after-sales support, and new product development, and states that design-input, design-output, review, verification, and validation documents are available for audit. It also reports no available SDK, so the evidence supports basic product-development capability but does not establish broader software or platform innovation capability.

Production capacityThe supplier reports lithium battery pack output of 2,000,000 sets and in-stock service capacity, with six to ten quality-control staff and exports to multiple global regions. However, the status of any manufacturing-capacity contract is unknown, so contractual production assurance is not established.

Customization capabilityThe supplier explicitly reports customization from designs, customization from samples, full customization, flexible customization, and minor customization. This indicates a broad stated range of product adaptation services.

Client casesThe supplier states that it provides OEM services for well-known brands, which is evidence of experience serving branded customers. However, no customer names, product examples, order details, or verifiable case descriptions are supplied, so the depth and verifiability of its customer-case record cannot be assessed.