Reliable Power for Every Flight: INR21700 Cylindrical UAV Battery

PKNERGY Cylindrical UAV Battery

PKNERGY develops cylindrical UAV batteries based on high-performance INR21700 lithium-ion cells, providing reliable power solutions for consumer drones and compact aerial applications.

Designed with a focus on cell consistency, structural stability, and cycle life, these battery packs balance energy capacity and durability. Available in voltage platforms from 21.6V to 50.4V, including 43.2V, with a rated capacity of 5,000mAh, they offer configurable power solutions for compatible UAV platforms.

What Is an INR21700 Cylindrical UAV Battery?

INR21700 refers to a cylindrical lithium-ion cell format measuring approximately 21mm in diameter and 70mm in length. These cells can be assembled into battery packs with different series and parallel configurations to meet specific voltage, capacity, and structural requirements.

For UAV applications, battery selection involves more than nominal voltage and capacity. Discharge capability, pack weight, dimensions, thermal management, and electrical compatibility all influence the performance of the complete power system.

PKNERGY provides cylindrical UAV battery solutions for customers seeking practical battery configurations tailored to their aircraft design, operating requirements, and integration needs.

Key Features of INR21700 UAV Batteries

01 / CELL TECHNOLOGY

INR21700 Cylindrical Cells

A standardized cylindrical format supports organized pack layouts, structured cell interconnection, and flexible battery assembly.

02 / VOLTAGE OPTIONS

Multiple Voltage Platforms

Available voltage configurations include 21.6V, 43.2V, and other options within the 21.6V–50.4V range, subject to the specified model.

03 / PACK ENGINEERING

Reliable Pack Integration

Appropriate cell selection, interconnection, and pack design help support consistent operation and dependable power delivery.

Technical Data

INR21700 Cylindrical UAV Battery Specifications

Review the technical specifications of PKNERGY INR21700 cylindrical UAV battery packs, including available voltage configurations, rated capacity, discharge performance, and physical dimensions.

Battery Specification Table

Model Cell Model Configuration Rated Voltage Capacity Energy Density Continuous Discharge Current Peak Discharge Current Weight Dimensions
21.6V 5000mAh INR21700 6S1P 21.6V 5000mAh — 45A — ≈600g 75 × 48 × 75mm
43.2V 5000mAh INR21700 12S1P 43.2V 5000mAh — 45A — ≈1000g 75 × 90 × 68mm
50.4V 5000mAh INR21700 14S1P 50.4V 5000mAh — 45A — ≈1150g 75 × 45 × 165mm

Applications of INR21700 Cylindrical UAV Batteries

INR21700 cylindrical battery packs can be evaluated for UAV platforms that require a defined balance of energy capacity, power output, weight, and installation space. The final configuration depends on the aircraft’s electrical architecture and operating profile.

Consumer Drones

Battery configurations for compatible consumer UAVs with defined voltage, capacity, and weight requirements.

Aerial Photography

Power solutions assessed according to flight duration, camera equipment, and aircraft energy consumption.

Compact Multirotors

Configurable battery packs for multirotor platforms with specific power demands and mechanical constraints.

Application suitability should be confirmed against the selected cell’s discharge rating, total battery weight, thermal performance, and UAV system requirements.

OEM & ODM Services

Custom INR21700 UAV Battery Pack Development

Every UAV platform has different electrical and mechanical requirements. PKNERGY supports customized cylindrical battery pack development based on your target voltage, capacity, discharge current, available installation space, and integration needs.

Electrical Configuration

Voltage, capacity, cell arrangement, and continuous or peak current requirements.

Mechanical Integration

Battery dimensions, mounting arrangements, connectors, and wiring specifications.

Battery Management

BMS protection functions and monitoring or communication interfaces where required.

Share your technical requirements with our team to evaluate cell selection, pack architecture, and project feasibility.

How to Choose the Right INR21700 UAV Battery

Selecting the right UAV battery requires matching the complete battery pack to the aircraft’s operating conditions rather than considering voltage and capacity alone.

01

Confirm Voltage and Capacity

Check the aircraft’s voltage range, energy requirements, and target flight duration.

02

Evaluate Discharge Performance

Verify that the selected cells and complete pack can support continuous and peak current demands.

03

Check Weight and Dimensions

Ensure that the assembled battery pack fits the available space and stays within the aircraft’s weight limits.

04

Validate System Compatibility

Review charging requirements, protection functions, thermal behavior, and electrical compatibility before deployment.

Frequently Asked Questions

What is an INR21700 cylindrical battery?

INR21700 describes a cylindrical lithium-ion cell format with a nominal size of approximately 21mm by 70mm. Its actual capacity, discharge capability, and cycle life depend on the specific cell model.

What voltage options are available?

PKNERGY’s product information includes voltage platforms within the 21.6V–50.4V range, including 43.2V. Please refer to the specification table for the available configurations and model-specific details.

Can PKNERGY customize INR21700 UAV battery packs?

Customization can be evaluated according to voltage, capacity, discharge current, dimensions, connectors, wiring, and BMS requirements, subject to cell availability and engineering feasibility.

Are INR21700 batteries suitable for all drones?

Not every cylindrical cell is suitable for every UAV. The correct choice depends on the aircraft’s power demand, battery weight limits, installation space, and operating conditions.

What information is needed for a battery quotation?

Please provide the target voltage, capacity, continuous and peak current, battery dimensions, connector requirements, application, and estimated order quantity. An existing battery specification or aircraft electrical requirements can also help our team evaluate your project.

PKNERGY UAV Battery Solutions

Looking for the Right Cylindrical UAV Battery?

Share your voltage, capacity, discharge current, and UAV application with PKNERGY. Our team can help evaluate an INR21700 cylindrical battery configuration for your project.


Request a Custom Quote →

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