Can you explain in detail how you match cells for a battery pack before you assembling the pack?

We will do the following things before assembling the pack: a. Select capacity, same capacities cells for one pack b. Measure the voltage, same voltage cells for one pack(difference is under 0.02v per cell) c. Measure the inner resistance,same IR cells for one pack (difference is under 1m Ohm) All above steps are very strict to make sure the pack performance is perfect.

What's your advantage compared with other suppliers?

a. High quality batteries: Our batteries are in enough capacity, and lower in RI, Before shipment, we will inspect the products and ensure the quality which are well approved by our clients. b. Better service: We always offer what our clients need. Reply client's questions timely. Supply best projects solution for clients. We ship out the products on time.

High Cost Performance Customizable Polymer Battery Pack 603048 3.7V 900mAh Obtained GPS Device UL1642/CE Certification Standard

Name: High Cost Performance Customizable Polymer Battery Pack 603048 3.7V 900mAh Obtained GPS Device UL1642/CE Certification Standard
Brand: Shenzhen A&S Power Technology Co., Ltd.
SKU: 2238752665

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

US$1.70

3,000-4,999 Pieces

US$1.65

5,000-9,999 Pieces

US$1.60

10,000-99,999 Pieces

US$1.55

100,000+ Pieces

Sample price:US$1.70/piece.Request sample

Product profile

Customization

Available

Type

Lithium Polymer Battery

Cathode Material

LCO

Model NO.

AS603048 3.7V 900mAh

Rechargeable

Yes

Size

6.2*30.5*50.2mm

Weight

19g

Cycle Life

500times

OEM/ODM

Yes

Manufacture

Yes

Warranty

12 Months

Certification

UL1642/CE

Typical Capacity

900mAh

Minimum Capacity

880mAh

Max. Charge Current

900mA

Max. Discharge Current

900mA

Transport Package

Customized, Safety Packaging

Specification

603048 3.7V 900mAh

Trademark

A&S POWER

Origin

China

HS Code

8507802000

Production Capacity

80000PCS/Day

Key features

Customizable Battery Pack: Full customization options available including OEM/ODM services and custom packaging.

UL1642 and CE Certified: Meets international safety standards for GPS devices with UL1642 and CE certification.

High Capacity Performance: Typical capacity of 900mAh with minimum 880mAh ensuring reliable power for devices.

Fast Delivery for Small Orders: Goods can be delivered within 3-5 working days for small quantity orders.

Strict Cell Matching Process: Cells are matched by capacity, voltage (under 0.02V difference), and internal resistance (under 1m Ohm).

12 Months Warranty: Comprehensive 12-month warranty coverage for all purchased battery packs.

Factory Direct Sales: Direct sales from manufacturer ensuring competitive pricing and quality control.

Flexible Payment Terms: Accepts T/T, L/C, Western Union, and Cash with flexible terms for large orders.

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: ≤2.54h

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:Can I have some samples for testing quality?

Yes, you can buy some samples of any our products for testing quality and market.

Q:How should I pay?

You can pay via T/T, L/C at sight, Western Union, Cash etc., 100% T/T in advance for samples. For large quantities, 30% T/T in advance as soon as order confirmed and the balance before shipping via T/T or L/C etc. If you prefer other payment terms, please contact us freely.

Q:What is your package looks like? Can I have the customized package?

We have factory's current standard package, customized print logo shall be complied to buyer's requirements, and the extra charges will be borne by the buyers, for more details, please contact us.

Q:What is delivery time if we place an order?

It depends order quantities. Usually, we can deliver goods within 3 -5 working days for small orders, for more QTY. order, let's confirm when you place official order.

Q:Are you factory?

yes,we are factory.