High Discharge/High Power 18.5V 4200mAh 5S LiPo Battery for XLPower Specter 700, Swift-Blade Indoor Nano Helicopter, RC Car
| Category | Specification |
| Capacity | 4200mAh (4.2Ah) |
| Chemistry | Lithium-Polymer (LiPo) |
| Configuration | 5S (5 Cells in Series) |
| Nominal Voltage | 18.5V |
| Maximum Voltage | 21V (4.2V per cell) |
| Minimum Voltage | 15V (3.0V per cell) |
| Watt Hours | 77.7Wh |
| Energy Density | 154 Wh/kg |
| Max Continuous Discharge | 128 Amps |
| Max Charge Current | 20 Amps |
| Rec. Landing Voltage (Air) | 17.5V (3.5V per cell) |
| Rec. Cut-off Voltage (Ground) | 16V (3.2V per cell) |
| Dimensions (L x W x H) | 140 x 46 x 45 mm (5.5″ x 1.81″ x 1.77″) |
| Weight | 500g |
| Lead Length (Main & Balance) | 108mm (4.25″) |
High Discharge/High Power 18.5V 5S 4200mAh Li-Po Battery for RC Racing Boat, Drift Car, Rock Crawler toy
High Discharge / High Power 18.5V 4200mAh 5S LiPo Battery is a type of lithium polymer battery in 5S series, featuring 18.5V nominal voltage and 4200mAh capacity. It is purpose-built for high-demand RC platforms that require powerful output, voltage stability, and reliable endurance during continuous high-load operation.
Composed of superior raw materials, lithium cobalt and soft aluminum film, the 18.5V 5S 4200mAh battery is lightweight, compact, and engineered for high energy density. The advanced pouch cell structure improves heat dissipation and structural integrity, making it suitable for both airborne and ground-based RC applications.
Featuring low internal resistance and 20C–120C high burst current, the 18.5V 4200mAh LiPo battery can discharge maximum power instantaneously without rapid temperature increase. This ensures aggressive throttle response, strong lift performance, and consistent power delivery during high-speed maneuvers. To ensure ultimate safety, its internal is integrated with a protection circuit board (battery PCB) to protect against overcharge, overdischarge, overcurrent, over-temperature, and short circuit with 1–3ms fast response. The whole LiPo battery production process conducts in high-automation production lines and medical-grade dust-free workshops with strict humidity control, supported by an MES system. It always delivers stable energy output and steady voltage to power XLPower Specter 700 helicopters, Swift-Blade indoor nano helicopters, RC cars, and other high-performance RC models.
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.
CertificationVTCBATT 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.
WarrantyVTCBATT 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.
CustomizationDifferent 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.
Flexible order quantity to support prototype testing and mass production.
Our technical and sales teams reply to your inquiry within 6 hours.
Test our lithium battery quality and performance before placing bulk orders.
Batteries certified to UL, CE, UN38.3, MSDS, ROHS, IEC62133, and more global standards.
High Burst Current
The High Discharge/High Power 18.5V 5S 4200mAh 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.
Compact Power
Featuring ultra high energy density 290Wh/Kg and high voltage at 3.8V/3.95V/4.35V,the High Discharge/High Power 18.5V 5S 4200mAh 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 Advantage
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.
VTCBATT Lipo battery can be discharged from -20℃ to 60℃.
This wide temperature range performance enables the battery to operate in many conditions.
After 30-day and 60-day storage, there is slight 1%-2% slight voltage decrease under 50% SOC at 25°C.
Why Choose VTCBATT?
VTCBATT not only focuses on customized design and excellent service to meet the diverse demands of different customers, but also devotes itself to precise and standardized manufacturing in every process to ensure the highest-quality batteries. Meanwhile, VTCBATT will provide comprehensive support from pre-sales to after-sales, focusing on customers’ feedback to establish long-term and win-win cooperation. VTCBATT professional sales and technical engineer teams will be your best custom battery experts to assist with reliable and fast services at any time.
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 for 18.5V 4200mAh 5S LiPo Battery
The VTCBATT High Power 4200mAh 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 4200mAh Li-polymer battery ensures efficient operation, extended runtime, and dependable performance for both consumer and industrial applications.
Delivers high burst discharge and stable output for fast acceleration and extended high-speed water racing sessions.
Supports instant throttle response and smooth power delivery for controlled drifting and aggressive corner performance.
Provides reliable low-speed torque output and long runtime for climbing rugged outdoor terrain steadily.
High-capacity LiPo battery handles powerful jumps, rough impacts, and demanding off-road driving conditions.
Ensures balanced discharge performance and lightweight energy supply for versatile remote-controlled vehicle applications.
Stable voltage output helps maintain smooth cinematic flight control and longer indoor FPV recording operation.
Powers bright LED systems and maintains stable nighttime flying performance with reliable discharge capability.
Compact high-energy battery design supports portable drone flights with efficient and responsive aerial control.
