Can I have a sample order?

Yes, sample orders are welcome. We offer free samples for quantities up to 3 pcs; you only pay shipping costs.

How to solve the quality problems after sales?

Send photos/videos and the defective battery via express. Our engineers analyze within 2 working days. We provide free repair or replacement for confirmed non-human factor defects under warranty.

How's your lead time?

Sample lead time is 7-10 days. Large quantity orders require 15-20 workdays.

What kind of certificates could you provide for these batteries?

We provide CE, CB, KC, MSDS, UN38.3 for standard models. For custom designs, we can apply for certificates with fees paid by the buyer, refundable for large orders.

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

Yes, we offer free logo printing for orders with sufficient quantity. Please contact us for details.

Can you make customized battery?

Of course. We have professional engineers to provide the most suitable solution according to your special requirements.

Lithium Cell 48V 20ah Rechargeable 18650 Lithium Ion Battery Pack for 1000W Electric Bicycle Scooter

Name: Lithium Cell 48V 20ah Rechargeable 18650 Lithium Ion Battery Pack for 1000W Electric Bicycle Scooter
Brand: Shenzhen Resky Electronics Co., Ltd.
SKU: 712332092

Guangdong, ChinaShenzhen Resky Electronics Co., Ltd.

US$285.00-305.00

5 Pieces

Sample price:US$325.00/piece.Request sample

Product profile

Customization

Available

Type

Li-ion Battery

Cathode Material

NCM

Model NO.

RSK-4820-1

Rechargeable

Yes

Size

Medium

Structure

10s4p

Motor

Below 1000W

Charging Cut-off Voltage

54.6V

Charging Current

Dishcarging Cut-off Voltage

39V

Continuous Charging Current

40A

Max Discharge Current

80A

Color

Aluminum Casing or PVC

Casing Type

PVC Package

Cycle Life

500cycles

Warranty

12months

Weight

12kg

Certification

CE,RoHS,MSDS,Un38.3

Lead Time

Within 15days

Shipping

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

Transport Package

1PCS/Carton

Specification

customized

Trademark

OEM

Origin

Shenzhen

HS Code

8507600090

Production Capacity

50000000PCS/Year

Key features

Customized Battery Solutions: Professional engineers provide tailored solutions for structure, casing, and protection systems.

Comprehensive Safety Testing: Passed short circuit, overcharge, over discharge, 150C thermal shock, and 1.2m drop tests.

1-Year Warranty Coverage: Free repair or replacement for non-human factor quality defects within one year of factory shipment.

High Cycle Life Performance: Designed for 500 charge cycles with excellent storage performance and low self-discharge rate.

Multi-Format Certification: Available with CE, RoHS, MSDS, UN38.3, CB, and KC certifications for global compliance.

100% Pre-Delivery Inspection: Every unit undergoes rigorous testing of inner resistance, discharge platform, and self-discharge.

Versatile Application Range: Suitable for electric bicycles, scooters, ATVs, skateboards, golf cars, and wheelchairs.

Flexible Shipping Options: Supports UPS, DHL, FedEx, TNT, air freight, and sea freight for lithium battery logistics.

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: ≤4.18hTerms 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.