How should I handle quality issues after purchase?

Please send photos and videos of the problem, return the defective battery by express, and our engineers will analyze it within 2 working days.

What are the payment terms?

We accept T/T (50% deposit, balance before shipment), PayPal, Western Union, and other methods. Full payment is accepted for small amounts.

What is the charging and discharging current specification?

Standard charging current is 0.2C, rapid charge is 1.0C, continuous discharging current is 0.5C, and max discharging current is 1C.

Solar Battery Cell 443441 3.7V 650mAh Storage Lithium Ion Battery Pack for Medical Device

Name: Solar Battery Cell 443441 3.7V 650mAh Storage Lithium Ion Battery Pack for Medical Device
Brand: Shenzhen Resky Electronics Co., Ltd.
SKU: 796731122

Guangdong, ChinaShenzhen Resky Electronics Co., Ltd.

US$1.00-2.00

10 Pieces

Sample price:US$2.00/piece.Request sample

Product profile

Customization

Available

Type

Li-ion Battery

Cathode Material

NCM

Model NO.

RESKY-LP443441

Rechargeable

Yes

Size

Small

Nominal Capacity

650mAh

Charging Current

0.2c

Continuous Discharging Current

0.5c

Max Discharging Current

MOQ

10PCS

Connector

Jst, Molex....

OEM Service

Yes

Power

2.4wh

Cycle Life

500cycles

Weight

Warranty

12months

Lead Time

Within 10 Workdays

Shipping

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

Certification

CE, RoHS, MSDS, Un38.3

Payment Term

T/T, Western Union, Paypal, Ect

Transport Package

Standard Exporting Package

Specification

443441

Trademark

OEM/RESKY

Origin

Shenzhen

HS Code

8507600090

Production Capacity

10000pack Per Month

Key features

High Energy Density: Compact 3.7V 650mAh Li-ion battery with NCM cathode material for efficient power storage.

Fast Charging Capability: Supports rapid charging in 2 hours or standard charging in 2.75 hours with 0.2C current.

Long Cycle Life: Durable design ensuring more than 500 repeated charge and discharge cycles.

Multi-Layer Safety Protection: Features dual IC chips for anti-shortcircuit, overcharge, overcurrent, and overload protection.

Custom OEM/ODM Service: Professional engineers provide customized solutions for connectors, capacity, and branding.

Wide Application Scope: Suitable for medical devices, outdoor sports, consumer electronics, and power tools.

Comprehensive Certifications: Certified with CE, RoHS, MSDS, UN38.3, CB, and KC for global market compliance.

Flexible Payment Terms: Accepts T/T, Western Union, PayPal, and other methods with 50% deposit option.

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.

Product Q&A

Q:What is the warranty period for the battery?

We provide a 1-year warranty after leaving our factory. If non-human factor quality problems are confirmed, we will repair or replace the battery for free.

Q:Can you provide free samples?

Yes, sample orders are welcome. We offer free samples if the quantity is not above 3 pcs; you only need to pay the shipping cost.

Q:What is the lead time for orders?

The lead time is 3-5 days for samples and 7-10 workdays for large quantity orders.

Q:Do you offer customization services?

Yes, we have professional engineers who can provide customized solutions for connectors, capacity, and branding according to your special requirements.

Q:What certifications are available for these batteries?

We provide CE, CB, KC, MSDS, and UN38.3 certifications. For custom designs, certificate fees may apply but can be refunded for large orders.