Can I have a sample order?

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

How to solve the quality problems after sales?

(1) Take photos & videos of the problems and send to us. (2) Send back the physical problem battery by express to us. (3) Engineer will analyze the defective battery within 2 working day. (4) 1 Year Warranty after leaving our factory, our defect rate is under 1%, we'll repaired or replaced the battery for free if non-human factor quality problems be confirmed.

How's your lead time?

3-5 days for sample, 7-10 workdays for large quantity.

What kind of certificates could you provide for these batteries?

We have CE, CB, KC, MSDS, UN38.3 for most our current model, if It's custom-making design, usually no current certificates, we could apply for you if you need, but the related fees should be paid by your side, and if your order is big enough, certificate fees can be refunded.

Can your factory print our logo/brand on the product?

Yes, and we will do this free of charge if the order quantity is big enough, please contact us for more details.

Can you make customized battery?

Of course. We have professional engineers that can give you the most suitable solution according to your special requirements.

Rechargeable Lithium Cell 703440 2s 7.4V 1000mAh Solar Lithium Ion Polymer Battery Pack for Bluetooth Speaker

Name: Rechargeable Lithium Cell 703440 2s 7.4V 1000mAh Solar Lithium Ion Polymer Battery Pack for Bluetooth Speaker
Brand: Shenzhen Resky Electronics Co., Ltd.
SKU: 799694722

Guangdong, ChinaShenzhen Resky Electronics Co., Ltd.

US$1.00-2.00

100 Pieces

Sample price:US$2.00/piece.Request sample

Product profile

Customization

Available

Type

Li-ion Battery

Cathode Material

NCM

Model NO.

RSK-703440-2S

Rechargeable

Yes

Size

Small

Nominal Capacity

1000mAh

Charging Current

0.2c

Continuous Discharging Current

0.5c

Max Discharging Current

Weight

MOQ

10PCS

Cycle Life

500cycles

Warranty

12months

Shipping

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

Certification

CE, RoHS, MSDS, Un38.3

Lead Time

3-10workdays

Connector

Jst, Molex....

Color

Blue PVC

Original

Shenzhen, China

OEM Service

Yes

Transport Package

1PCS/Box

Specification

15*34*45mm

Trademark

OEM

Origin

China

HS Code

8507600090

Production Capacity

100000PCS/Day

Key features

Long Cycle Life: More than 500 repeated charge and discharge cycles for extended durability.

Fast Charge Capability: Can be fully charged in 2 to 3 hours with a rated voltage of 4.2V per cell.

Dual IC Protection: Features dual IC chips to prevent short-circuit, overcharging, overcurrent, and overload.

High Energy Density: Compact 7.4V 1000mAh design offering high energy density for portable devices.

Wide Application Range: Suitable for Bluetooth speakers, power tools, electric vehicles, and medical devices.

Customization Service: Professional engineers provide custom solutions based on special requirements.

Multiple Certifications: Complies with CE, RoHS, MSDS, UN38.3, CB, KC, and IEC61233 standards.

Free Sample Policy: Free samples available for orders under 3 pieces, shipping cost only.

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: ≤3.53hTerms 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:Will you use the battery on what product?

Please let us know what kind of model you need so we can make the correct products for you.

Q:Do you need Protection Board for the battery?

Please specify if you require a protection board for your battery order.

Q:Do you need cable and connector for the battery?

Please inform us if you need specific cables and connectors for your battery.

Q:May I know your continuous and peak discharging current?

Please provide your continuous and peak discharging current requirements.

Q:How about you payment and delivery items?

Payment items: By T/T, 50% for deposit, and balance all before shipment. For small amount, we also accept full payment, payment via PayPal, Western Union.