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  • 18.5V 3.7V-5S 2100mAh
  • 18.5V 3.7V-5S 2100mAh
  • 18.5V 3.7V-5S 2100mAh
  • 18.5V 3.7V-5S 2100mAh
  • 18.5V 3.7V-5S 2100mAh
  • 18.5V 3.7V-5S 2100mAh

High Discharge/High Power 18.5V 5S 2100mAh Li-Po Battery for RC Racing Boat, Drift Car, Rock Crawler toy

ParameterSpecification
Battery Configuration5S1P
Nominal Voltage18.5V
Capacity2100 mAh
Continuous Discharge Rate25C
Continuous Discharge Current52.5 A
Burst Discharge Rate50C
Burst Discharge Current105 A
Max Charge Rate3C
Max Charge Current6.3 A
Weight285 g
Dimensions (L x W x H)96 x 34 x 39 mm
Power Wire Size14 AWG
Main Connector TypeDeans Gold Connector
Balance Connector TypeJST-XH Connector

High Discharge/High Power 18.5V 5S 2100mAh Li-Po Battery for RC Racing Boat, Drift Car, Rock Crawler toy

18.5V 5S 2100mAh High-Discharge & High-Energy Lithium Battery This lithium polymer battery comprises five pouch cells connected in series, featuring a nominal voltage of 18.5V and a capacity of 2100mAh. Designed specifically for high-power remote control applications, it delivers instantaneous power release under heavy load conditions with reliable performance.

Manufactured using lithium cobalt oxide/NCM and smooth aluminium foil layer materials, it features a lightweight, compact design with optimised thermal dissipation, making it particularly suitable for space-constrained remote-controlled models.

This 18.5V 5S 2100mAh lithium polymer battery exhibits low internal resistance, supporting high instantaneous discharge currents from 20C to 120C. Its low resistance enables maximum power delivery without causing significant battery temperature rise. Robust discharge performance ensures intense driving or racing scenarios deliver explosive acceleration, instant throttle response, and stable output, enhancing your experience. For safety assurance, the integrated protection circuit board (Battery PCB) safeguards against overcharging, over-discharging, overcurrent, overtemperature, and short circuits, with protection mechanisms responding within 1 to 3 milliseconds. The entire lithium polymer battery production process occurs on highly automated production lines within medical-grade cleanrooms, where humidity is strictly controlled and comprehensive traceability is supported by an MES system. This battery delivers stable power output and constant voltage for high-performance RC toys such as racing boats, drift cars, rock crawlers, and other applications requiring high-discharge, high-energy solutions. Dimensions, capacity, and discharge current can all be customised.

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Full Certification & Extended Warranty

VTCBATT LiPo batteries meet global certifications including CB, CE, UL, and UN38.3, and offer a 14-month warranty—two months longer than standard—to maximize customer confidence and profit.

  • Certification

    VTCBATT lithium polymer batteries have passed numerous important international certifications, including UL1642, IEC62133, UN38.3, CE, ROHS, BIS and EU2024/1542, CE, ROHS, REACH, and KC certifications.

  • Warranty

    VTCBATT LiPo batteries come with a 14-month warranty, 2 months longer than the standard 12-month warranty, providing extra coverage for shipping and customs clearance. This ensures customer confidence.

  • Customization
    Customization

    Different sizes,capacities, connectors, discharge rates,and cases. Just inform us of your specific requirement, and our professional engineers can provide you with the customized lipo battery proposal.

Small MOQ

Flexible order quantity to support prototype testing and mass production.

6 Hour Quick Response

Our technical and sales teams reply to your inquiry within 6 hours.

Free-Sample-For-Test
Stable Discharge

Test our lithium battery quality and performance before placing bulk orders.

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200+ Certifications

Batteries certified to UL, CE, UN38.3, MSDS, ROHS, IEC62133, and more global standards.

High Burst Current

The High Power 18.5V 5S 2100mAh Li-Po battery features 20C-120C high burst current, providing instantaneous surge current to power the motor in the drones,helicopters,RC toys strongly. The burst current can be customized as per your power demand exactly.

lipo battery High Burst Current
lipo battery Compact Power

Compact Power

Featuring ultra high energy density 290Wh/Kg and high voltage cell at 3.8V/3.95V/4.35V,the High Power 18.5V 5S 2100mAh Li-Po battery can maintain the maximum power in the most compact sizw. It makes the drones,helicopters,RC toys much more lightweight and powerful.

Thermal Efficiency

The Optimized internal resistance(IR) stays in ultra low level to allow high discharge rate peak load without much heat generation, optimizing the performance in the maximum and extending the overall cycle life in the utmost.

lipo battery Thermal Efficiency

LiPo Battery Advantage

lipo battery Long Cycle life
Long Cycle Life

Based on 0.5C/1C cycling, the VTCBATT lipo battery can maintain over 80% capacity after 500 cycles and totally reach 1000 times cycle life.

lipo battery Temperature Performance
Temperature Performance

VTCBATT Lipo battery can be discharged from -20℃ to 60℃.
This wide temperature range performance enables the battery to operate in many conditions.

lipo battery Low self-discharge rate
Low Self Discharge Rate

After 30-day and 60-day storage, there is slight 1%-2% slight voltage decrease under 50% SOC at 25°C.

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Why Choose VTCBATT?

VTCBATT not only focuses on customised design and excellent service to meet the diverse requirements of different customers, but also dedicates itself to precise and standardised manufacturing in every process to ensure the highest quality of batteries. At the same time, VTCBATT will provide comprehensive support from pre-sales to after-sales, focusing on customer feedback to establish long-term and mutually beneficial cooperation. VTCBATT’s professional sales and technical engineer teams will be your best custom battery experts, helping you with reliable and prompt services at any time.

A Benchmark of Automatic Lithium Polymer Battery Manufacturing Line - VTCBATT Modern Facility

From the raw materials mixing to the cell test, VTCBATT adopts an automatic manufacturing process to maximize production efficiency and enhance the batteries quality, safety, and reliability. The entire manufacturing process is monitored and 100% tested before flowing to the next procedure to ensure zero defects before delivery.

Over the past 20 years, VTCBATT has built strong partnerships with customers in more than 50 countries worldwide. With reliable quality, responsive service, and tailored battery solutions, we have earned the trust of our clients—many of whom have maintained long-term cooperation and lasting friendships with us for over a decade. Together, we continue to grow and move forward toward a brighter future.

Application

The VTCBATT 18.5V 5S 2100mAh polymer lithium-ion battery is widely used in portable electronics and smart devices that require high energy density and stable power output. With a slim pouch design, it is ideal for RC Racing Boat, Drift Car, Rock Crawler toy. This battery supports customized dimensions, voltage, and protection circuits to match specific application needs. Featuring low internal resistance, long cycle life, and reliable safety performance, the VTCBATT 18.5V 2100mAh Li-polymer battery ensures efficient operation, extended runtime, and dependable performance for both consumer and industrial applications.

RC Racing Boat
RC Racing Boat
RC Bait Boat
RC Bait Boat
Speed Toy Boat
Speed Toy Boat
Drift Car Toy
Drift Car Toy
Rock Crawler toy
Rock Crawler toy
Truggy toy
Truggy toy
Monster Truck toy
Monster Truck toy
Hobby Grade RC
Hobby Grade RC
       
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Looking for the perfect battery solution? Our expert engineering team is ready to support you from idea to delivery. Whether you need custom voltage, size, or application-specific design, we’re here to make it happen. Get in touch today and let us power your success—one battery at a time!
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