cosomicexpert of battery packs
cosomicexpert of battery packs
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Drone / UAV Battery System Engineering — Custom Drone / UAV Battery Pack OEM ODM | COSOMIC TECHNOLOGY COMPANY LIMITED Foshan China
Drone / UAV

Smart Battery Systems
for Drone & UAV

From FPV racing at 100C burst to 48-minute commercial inspection flights — we engineer LiPo and Li-ion battery systems with Bluetooth telemetry, UN38.3 air-freight certification, and custom mass/balance optimization.

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Application Overview

Maximum Flight Time, Minimum Weight

Commercial drone operations demand battery systems that maximize flight time, minimize weight, and communicate real-time cell health to the flight controller. We engineer battery packs for inspection drones, agricultural spraying UAVs, cinema drones, and industrial delivery platforms. Our engineering process starts with your payload and flight time requirements — then works backward to determine the optimal cell chemistry, configuration, and BMS communication protocol. Every pack is UN38.3 certified for international air freight.

Key Engineering Challenges

1

Maximizing energy density (Wh/kg) to extend flight time while minimizing motor payload

2

Maintaining consistent cell voltage under high-current discharge without voltage sag

3

Providing real-time cell voltage, temperature, and SOC to the flight controller via Bluetooth or serial

4

Achieving UN38.3 air freight certification for international shipping and deployment

5

Balancing pack consistently across multiple charge cycles to maintain capacity uniformity

Engineering Requirements

What Every Drone / UAV Battery Must Deliver

Maximum Wh/kg Ratio

High-energy 21700 cells and optimized cell arrangement deliver maximum flight time for a given weight budget.

Bluetooth BMS Telemetry

Real-time cell voltages, temperatures, and SOC transmitted to flight controller or ground station via Bluetooth 5.0.

3C–100C Discharge Rate

From commercial inspection drones at 3C to FPV racing packs at 100C burst — matched to your motor controller spec.

UN38.3 Air Freight Certified

All our drone battery packs carry UN38.3 certification for compliant international air freight shipping and deployment.

Typical Specifications

Engineered to Your Exact Requirements

These are the typical parameter ranges for drone / uav battery systems. Every project is custom-engineered to your specific application requirements.

Discuss Your Spec
Cell Configuration2S to 12S (7.4V – 44.4V)
Capacity500mAh – 30,000mAh
Cell FormatLiPo pouch / Li-ion 21700
Discharge Rate3C continuous / up to 100C burst
CommunicationBluetooth 5.0 / UART / balance connector
ConnectorXT30 / XT60 / XT90 / AS150 / custom
Balance LeadJST-XH standard / custom
WeightOptimized per flight time spec
CertificationUN38.3, CE, RoHS
Cycle Life150–500 cycles (application-dependent)
Regulatory Compliance

Certifications for Drone / UAV

UN38.3

Mandatory transport safety certification for drone battery packs shipped by air internationally — we handle the certification process.

CE Marking

European conformity certification for drone battery packs sold or deployed within the EU market.

RoHS

Restriction of Hazardous Substances compliance ensuring drone batteries meet EU environmental standards.

MSDS / SDS

Material Safety Data Sheet for customs clearance and site safety documentation during drone operations.

Real Projects

Drone / UAV Case Studies

🇺🇸 United StatesUS Commercial Inspection Drone OEM

22.2V 30,000mAh Smart LiPo Pack for Industrial Inspection Drone

48 min certified flight time

Challenge

A US-based commercial drone manufacturer needed a 6S LiPo pack achieving 45+ minutes flight time for infrastructure inspection, with Bluetooth SOC telemetry, UN38.3 air-freight certification, and FAA-compliant packaging.

Our Solution

We engineered a 22.2V 30Ah smart LiPo pack with high-energy 21700 cells, a custom Bluetooth BMS transmitting cell voltages and temperature to the flight controller, and UN38.3 certified packaging for air freight compliance.

Configuration

6S2P (22.2V)

Capacity

30,000mAh

C-Rate

3C continuous

Communication

Bluetooth 5.0

Flight Time

48 min (tested)

Weight

1.85 kg

CEUN38.3RoHS48-minute certified flight time achieved — 22% improvement over previous battery design. UN38.3 air-freight approval received within 3 weeks of delivery.
Recommended Products

Battery Systems for Drone / UAV

Lithium Polymer Battery PackFPV Racing Drone LiPo Pack21700 High-Energy Li-ion Pack
Technical Deep Dives

Related Engineering Articles

Engineering Guide

LiPo Battery Packs for Drones and FPV Racing

C-rating selection, voltage sag management, storage practices, and crash durability for high-performance UAVs.

Read Article
Engineering Guide

18650 vs 21700 vs 26650: Cell Format Selection Guide

Compare cylindrical formats across energy density, thermal performance, and pack design flexibility.

Read Article
Engineering Guide

Battery Pack Thermal Management Design Guide

Passive cooling with aluminum housings to active liquid cooling for high-power drone applications.

Read Article
FAQ

Common Questions about Drone / UAV Battery Systems

Can you design a battery pack to maximize flight time for our specific drone platform?
Yes. Share your drone weight, motor KV rating, ESC maximum current, and target flight time. Our engineering team will calculate the optimal battery configuration (voltage, capacity, cell chemistry) to maximize flight time while staying within your weight budget.
What communication interface does your Bluetooth BMS support?
Our Bluetooth 5.0 BMS supports both standard BLE protocols (compatible with most FPV ground stations and mobile apps) and custom UART/serial output for integration with flight controllers like ArduPilot, PX4, and DJI custom builds.
Can you supply batteries pre-certified for air freight shipping?
Yes. All our commercial drone battery packs carry UN38.3 certification. We also provide MSDS/SDS documentation, proper packaging materials, and shipping labels compliant with IATA DGR regulations for air freight of lithium batteries.
What is the difference between LiPo and Li-ion 21700 for drone applications?
LiPo (lithium polymer) excels in weight-critical applications due to high volumetric energy density — ideal for racing and compact drones. Li-ion 21700 cells (Samsung 50S, Molicel P42A) offer higher gravimetric energy density and longer cycle life — ideal for commercial inspection drones requiring 400+ charge cycles.
Can you label and package batteries to comply with IATA air freight regulations?
Yes. We provide IATA-compliant inner packaging (individual cell/pack isolation), UN specification outer boxes, proper watt-hour markings, and shipping documentation for both ≤100Wh and >100Wh battery packs.

Ready to Design Your Drone / UAV Battery System?

Share your requirements and our engineering team will respond within 24 hours with a custom solution.

Request Engineering QuoteWhatsApp Us Now
cosomicexpert of battery packs

COSOMIC TECHNOLOGY COMPANY LIMITED is a battery system engineering company specializing in custom OEM and ODM power solutions for industrial, medical, mobility, and energy storage applications.

Building 8, New Energy Industrial Park, Foshan, China
+86 158 8990 0503

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Certifications:CEUN38.3RoHSIEC62619MSDSISO 9001

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