18650 2S3P 7.4V 6600mAh Li-ion Rechargeable Battery

Item No.: TWE0614
Brand: TWE
Nominal Voltage: 7.4V
Nominal Capacity: 6600mAh
Max Dimensions: 111*71.5*19mm
Certificate: CE, ROHS, UN38.3, IEC62133, MSDS, etc.
Warranty: 1 year
Description Brand Introduction Review
Description

Targeted Power Solutions for Electric Mobility Systems

This 48v lithium ion battery serves as an advanced power source tailored for manufacturers and developers requiring robust energy storage. Designed specifically for electric bike battery 48v applications, it meets stringent demands from urban transportation to light commercial electric vehicles. Our custom battery manufacturer expertise ensures configurations that align with specific voltage and capacity requirements, supporting system integrators seeking optimized battery performance within compact dimensions. Through tailored design and certification compliance, this battery for electric bike projects ensures compatibility and integration ease for OEMs and mobility solution providers.


Technical Specifications Emphasizing Reliability and Safety

The 48v lithium ion battery exhibits precise electrical characteristics including stable voltage output, high energy density, and low internal resistance, essential for sustained operation in dynamic load conditions. With tested cycle life exceeding industry benchmarks and compliance with international safety certifications, this battery pack supplier delivers consistent performance under varied thermal and mechanical stresses. The cell management system supports CC/CV charging protocols, enhancing longevity and operational safety. Detailed parameters such as continuous and peak discharge currents are calibrated to optimize motor control and system efficiency in electric bike battery 48v implementations.


Industry Applications and Operational Integration

The battery for electric bike applications extends its utility to commercial electric scooters, e-bikes, and light electric vehicles, providing the backbone for eco-efficient transportation solutions. Its adaptable modularity from a reliable battery pack supplier enables seamless integration within diverse chassis designs and drive train architectures. This solution supports sustainability goals by enabling longer range and efficient power use, critical for fleet operators and urban mobility systems. Furthermore, the 48v lithium ion battery facilitates integration with vehicle energy management systems, ensuring real-time monitoring, fault detection, and adaptive power distribution in demanding operational environments.

Product Specifications
Item Specifications Remark
Model No. LI18650-2200-2S3P
Nominal Voltage 7.4V
Nominal Capacity 6600mAh @0.2C standard charge&discharge
Max Dimensions 58*68*36mm L*W*H
Cycle Life ≥800 times
Charge Method CC/CV with professional charger
Charge Cut-off Voltage 8.4V
Discharge Cut-off Voltage 5.5V
Standard Charge Current 0.2C
Standard Discharge Current 0.2C
Max Continuous Charge Current 1C
Continuous Discharge Current 1C
Peak Discharge Current 2C
Recommended Operation Ambient Temperature Charge: 0~45℃ Discharge:-20~60℃
Storage Temperature -20~25℃ 12 months
-20~45℃ 3 months
-20~60 ℃ 1 month
Internal Resistance ≤160mΩ
Weight Approx. 290g
Product Advantages
-High safety
-Real capacity
-Low internal resistance
-Stable discharge voltage
-High consistency in capacity&voltage&resistance
-No fire, no explosion, no leakage

Structural and System Integration Benefits

As a product from an experienced custom battery manufacturer, this 48v lithium ion battery employs modular construction permitting scalable capacity configurations tailored to specific project requirements. The engineering design supports efficient thermal management, reduced weight, and mechanical robustness critical for vibration-prone transport environments. Standardized connectors and robust housing provide effective protection and ease of replacement, consolidating its role as a dependable battery pack supplier for electric bike battery 48v solutions. The system is adaptable for various mounting arrangements and complies with industry-standard form factors promoting simplified OEM integration and maintenance.


Enhanced Performance and Practical Usability

The 48v lithium ion battery delivers notable performance robustness with extended cycling capabilities and consistent voltage under high load scenarios typical of electric bikes and similar vehicles. Its management system enhances safety, overcharge protection, and optimized charging efficiency, contributing to lower total cost of ownership. The battery pack supplier’s comprehensive support facilitates easier installation and diagnostics, aligning with professional requirements for maintenance and end-user reliability. By targeting the electric bike battery 48v market segment, the battery ensures high energy availability, reduced downtime, and improved operational uptime for various commercial and consumer-oriented electric mobility platforms.

Applications
Bluetooth speaker, flashlight, solar light,intelligent door lock, gps tracker, parking device, medical device, POS machines, power tool, garden tool, sweeper, electric scooter, electric bike, outdoor power supply, etc

E-Bike Fleet Operations in Urban Transport Networks

In urban transit environments, electric bikes require dependable power sources to maintain consistent service levels and meet fleet utilization targets. The 48v lithium ion battery is installed as a core energy component providing stable voltage supply and rapid recharge capabilities, essential for high turnover rates in bike-sharing or delivery fleets. Leveraging a trusted battery pack supplier allows operators to maintain compliance with safety and environmental standards, while facilitating integration with telematics and fleet management systems. This optimized battery for electric bike applications supports operational workflows that emphasize energy efficiency and vehicle uptime in rapidly evolving mobility infrastructure.


Electric Scooter Manufacturing and Aftermarket Supply Chains

Manufacturers and aftermarket service providers for electric scooters depend on scalable, high-quality battery systems to ensure product reliability and customer satisfaction. As a custom battery manufacturer, our 48v lithium ion battery caters to these requirements by providing configurable solutions that support varying power and range expectations. Integration with motor controllers and battery management units ensures consistent performance and predictive failure analysis, critical in reducing warranty claims and service disruptions. The battery pack supplier's adherence to international standards supports regulatory compliance and traceability, facilitating integration into established manufacturing workflows and parts distribution networks within the electric bike battery 48v ecosystem.

Bluetooth Speaker
Flashlight
Solar Light
Sweeper
Electric Scooter
Electric Bike
Certificates
Safety certificate: CE,CB, IEC62133, UL, PSE
Environmental certificate: ROHS, REACH
Quality management certificate: ISO9001, ISO14001, BSCI
Shipping certificate: UN38.3, MSDS, Air/Sea Transport Identification&Classification Report
CE certificate
RoHS certificate
IEC62133 certificate
UN38.3 certificate
ISO9001 certificate
Production Process
01 Materials Mixing
Fully automatic feeding system,High precision, fully enclosed
02 Coating
High precision constant temperature coating machine
03 Electrode Piece Rolling
Precision automatic roller machine
04 Electrode Piece Slitting
Automatic battery electrode piece continuous slitting machine
08 Injection
Fully automatic bell type liquid injection machine
07 Tab Welding&Beading
Automatic welding machine
06 Into Shell
05 Winding
Automatic winding machine
09 Automatic Laser Welding
10 Formation&Capacity Sorting
Needle bed type charging cabinet
11 Cycle Test
Precision automatic roller machine
12 OQC Test
100% full test on appreance, voltage, capacity, resistance, size, etc
Packing&Delivery
With 20 years experience in battery field, Topwell can arrange the battery ship by Sea / Air / Express.
We can provide you with all DG certification which allows you to ship these batteries,
such as UN38.3 /MSDS /DG. We can ship from Shenzhen,Shanghai,HK...
Packing
Delivery
Exhibitions



FAQ 


What certifications ensure the safety and quality of your battery packs?

We hold multiple certifications, including CE, ROHS, UN38.3, IEC62133, and MSDS for all our battery packs. These guarantee compliance with international safety and environmental standards to ensure you receive a dependable, high-quality product.


Can you provide custom battery configurations for specific industrial applications?

Yes, as a professional custom battery manufacturer, we offer tailored battery pack solutions to meet various voltage, capacity, and size requirements. Contact us with your project details, and we'll develop a solution optimized for your unique needs.


How should I maintain and charge the 18650 2S3P 7.4V 6600mAh battery safely?

We recommend using the CC/CV charging method with a professional charger and observing the 8.4V cut-off voltage. Operating within the specified temperature range (0~45°C for charging) and avoiding deep discharge ensures longer cycle life and reliable performance.


Do you supply batteries suitable for electric bikes requiring 48V lithium ion battery packs?

We offer a range of lithium battery solutions, including battery packs suitable for electric bikes and other vehicles. Our experience as a trusted battery pack supplier ensures we can support your demand for safe, high-capacity battery for electric bike applications with consistent quality.

Brand Introduction

Yichun Topwell Power Co., Ltd (Trademark:TWE) established in 2002, is a high-tech enterprise focusing on the R&D, production and sales of lithium polymer batteries, lithium ion batteries, lithium iron phosphate batteries, and lithium thionyl chloride batteries. Products are widely used in consumer electronics, Internet of Things, smart home, medical, vehicle, home and outdoor energy storage, and have obtained CE, RoHS, Reach, UN38.3, IEC62133, CB, UL, MSDS certifications, etc.

 

Topwell moves on by providing reliable, efficient and intelligent battery solutions to meet different energy needs. We have efficient engineering, production and quality management teams. From raw material procurement, to production, testing, sales and after-sales service, all steps have been controlled by a strict quality management system. Our factory has passed ISO9001, IS014001, BISI certification, SGS, Intertek audit. With the advantages in price, quality and service, we have established long-term and stable cooperative relationships with many well-known brands. Topwell always attached the great importance to the long term cooperation with customers. No matter the order is big or small, we do our best to support you the highest quality with favorable price. We believe that Topwell Power can be your best battery supplier!

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