High quality 18650 11.1V 2600mAh lithium ion battery pack

Item No.: TWE0259
Brand: TWE
Nominal Voltage: 11.1V
Nominal Capacity: 2600mAh
Max Dimensions: 55x70.5x19mm
Certificate: CE, ROHS, UN38.3, IEC62133, etc.
Warranty: 1 year
Description Brand Introduction Review
Description

Advanced Power Solution for Professional Use

This lithium ion battery pack offers a dependable energy source specifically engineered for industrial and commercial users requiring consistent power delivery. Designed by a reputable custom battery manufacturer, it features an ideal nominal voltage of 11.1V and a 2600mAh capacity. Target users include OEMs integrating battery solutions into portable and mobile equipment such as electric transportation and outdoor power systems. Its compact size and light weight facilitate seamless integration, meeting stringent performance and durability standards demanded by businesses. As a trusted battery pack supplier, the design supports ease of compatibility with existing electronic architectures.


Technical Specifications Tailored for High Efficiency and Safety

This battery pack incorporates low internal resistance of ≤200mΩ, enabling high discharge currents up to 2C peak without compromising safety, while the CC/CV charge method extends service life beyond 800 cycles at over 80% capacity retention. Measuring 55 x 70.5 x 19 mm and weighing approximately 160g, it is compact yet robust. Certifications including CE, ROHS, UN38.3, and IEC62133 ensure compliance with international safety and environmental regulations. The recommended operational temperature range enhances versatility in diverse environmental conditions, making it an optimal electric bike battery and general industrial lithium ion battery pack.


Industrial Integration and Application Versatility

This lithium ion battery pack is suitable across multiple sectors including electric mobility, IoT devices, and outdoor power tools. As a battery for electric bike and electric scooter applications, it delivers steady power output critical for performance and long service intervals. Its standardized dimensions and certified safety facilitate integration into complex systems such as portable medical devices or GPS trackers. The product leverages the expertise of a battery pack supplier known for delivering reliable lithium ion battery packs, promoting operational reliability and reducing downtime in end-user systems.

Product Specifications
Item Specifications Remark
Model No. LI18650-2600-3S1P
Nominal Voltage 11.1V
Nominal Capacity 2600mAh Standard discharge after standard charge
Dimensions 55x70.5x19mm max LxWxH
Cycle Life ≥800 times ≥ 80% of the initial capacity
Charge Method CC/CV with professional charger
Charge Cut-off Voltage 12.6V
Discharge Cut-off Voltage 8.25V
Standard Charge Current 0.2C
Standard Discharge Current 0.2C
Continuous Charge Current 1C 10℃≤Temp<45℃
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 ≤200mΩ
Weight Approx. 160g
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 Modular Design Benefits

The lithium ion battery pack’s compact form factor allows modular assembly tailored to specific voltage and capacity requirements, a feature emphasized by this custom battery manufacturer. Its low internal resistance design minimizes energy losses and heat generation, optimizing system efficiency. The robust mechanical design withstands vibration and shock, critical for applications in electric bike battery powertrains and outdoor equipment. The product’s compliance with global safety standards certified by an experienced battery pack supplier ensures reliability during high-stress operations, simplifying compliance challenges in diverse industrial environments.


Performance Efficiency and User-Centric Value

This battery pack offers long cycle life exceeding 800 charge-discharge cycles at more than 80% capacity retention, supporting sustained operational uptime for electric bike battery solutions and other portable power devices. Its stable discharge voltage curve ensures consistent performance, reducing unexpected power drops critical in field-use scenarios. The pack’s ease of integration and maintenance streamlines system design cycles for manufacturers, improving ROI when sourced from a trusted battery pack supplier. The lightweight construction also reduces device weight, enhancing mobility without compromising power density, delivering tangible benefits for users deploying lithium ion battery pack solutions.

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

Power Supply for Electric Mobility Systems

In the context of electric bike and scooter manufacturing, this lithium ion battery pack serves as a core power source delivering reliable, high-capacity energy suited for continuous use in variable urban and outdoor conditions. Its safety certifications support compliance with transportation regulations, while the design facilitates integration with motor controllers and battery management systems typical in electric bike battery architectures. The pack’s efficiency and durability extend vehicle range and reduce maintenance schedules, optimizing product performance over competing battery solutions sourced from other battery pack suppliers.


Backup Energy in Portable Industrial and Consumer Electronics

This battery pack is deployed within portable industrial tools and consumer electronic devices requiring compact, long-lasting energy reserves such as GPS trackers, flashlights, and medical POS equipment. The design conforms to strict safety and environmental regulations, enabling usage across multiple international markets. As a custom battery manufacturer product, it offers adaptability within diverse device enclosures and power systems, ensuring sustained voltage output and operational stability critical for performance reliability in demanding workflows. Its integration supports seamless replacement and upgrade cycles within managed inventory systems.

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
All cells will be 100% tested for 3 cycles.
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 industries or devices are suitable for this lithium ion battery pack?

We manufacture battery packs designed for a variety of applications including electric scooters, GPS trackers, medical devices, and power tools. Our lithium ion battery pack ensures stable power delivery and long cycle life, meeting high demands across industrial and commercial sectors.


Can you provide customized battery solutions for electric bikes?

Yes, as a dedicated custom battery manufacturer, we offer tailored battery packs including those suitable for electric bikes. Our expertise allows us to design batteries that meet specific voltage, capacity, and size requirements for your unique electric bike models.


How does Topwell ensure the safety and quality of its battery packs?

We ensure quality and safety through strict compliance with CE, ROHS, UN38.3, and IEC62133 certifications. Our advanced CC/CV charging methods and rigorous internal testing maintain low internal resistance and high cycle stability for each battery pack supplier product.


What shipping options are available for international orders?

We provide internationally certified batteries with complete DG certifications like UN38.3 and MSDS, allowing safe global shipment. Our logistics support ensures reliable delivery to buyers worldwide, making us a trusted battery pack supplier across more than 80 countries.

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!

Review
Elizabeth
Oct 28, 2024
We've integrated the 18650 11.1V 2600mAh battery pack into several of our consumer electronics, and it’s been a fantastic choice. The pack provides stable and efficient power, allowing for longer usage between charges. It’s lightweight and compact, making it ideal for portable devices. We’ve found the battery to be durable and consistent over multiple charge cycles. Great for high-power applications!
Tallulah
Sep 10, 2024
We've been using the 18650 11.1V 2600mAh lithium-ion battery pack in our Bluetooth speakers, and the performance has been outstanding. The 2600mAh capacity provides ample power for long-lasting, uninterrupted playtime, which is crucial for our customers who love portability and high-quality sound. The 11.1V output ensures stable power delivery, keeping the speaker’s audio crisp and clear even at higher volumes. The battery charges quickly and holds its charge well over time, providing excellent longevity for each speaker. It’s also lightweight, which is an important factor for our compact designs. Overall, we’re extremely satisfied with this battery and will continue using it in our future Bluetooth speaker models. Highly recommended for anyone looking for a reliable, high-performance battery for audio devices!
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