400Wh/kg High Energy Density 12S 39000mAh Long Endurance UAV Battery

Engineered for long endurance platforms, the Mindway UHD400 battery system delivers 400 Wh/kg cell energy density—making it ideal for weight-sensitive applications like fixed-wing UAVs and long-range surveillance.

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Product Description
Specification
Product Advantage
FAQ

Product Description

400Wh/kg Ultra-High Energy Density UAV Battery

In the UAV industry, When evaluating a density battery (Wh/kg), the most critical factor for UAVs is the energy-to-weight ratio. Mindway's 400Wh/kg series provides a superior power-to-weight ratio, allowing professional drones to carry 30% more payload or fly 50% longer compared to standard 260Wh/kg batteries. This breakthrough in density battery (Wh/kg) technology ensures your mission-critical hardware operates at peak efficiency.

With Mindway’s expertise in aviation long edurance power solutions, the Mindway's 400Wh/kg UAV Battery is widely used in long-endurance drones, surveillance UAVs, mapping and surveying drones, industrial inspection platforms, and logistics UAV systems.This battery significantly increases flight endurance while reducing overall system weight, making it an ideal power solution for long edurance drone batteries.

Key Advantages

Record-Breaking Energy Density: 400Wh/kg ultra-High energy, nearly doubling the industry standard of 250Wh/kg.
SWaP-C Optimized: Maximizing Size, Weight, and Power while maintaining aviation-grade reliability.
Stable and Reliable Power Output for demanding UAV operations
Improves Drone Payload Capacity and Operational Efficiency
Ideal Power Solution for Professional UAV Manufacturers

Typical Applications

Mission-Critical Endurance: Designed to support BVLOS (Beyond Visual Line of Sight) Long-endurance and heavy-lift missions.
Surveillance and reconnaissance drones
Aerial mapping and surveying UAVs
Industrial inspection drones
Logistics and cargo UAV systems

Mindway's 400Wh/kg technology is the ultimate long endurance UAV battery solution, designed for extended mapping and surveillance missions.

400Wh/kg batteries(High Energy Density) VS 260Wh/kg batteries(standard)

Performance Metric	Mindway 400Wh/kg Series	Standard Industrial Battery
Gravimetric Energy Density	400 Wh/kg	220 - 250 Wh/kg
Capacity (mAh)	39,000 mAh	22,000 mAh (at same weight)
Weight Efficiency	Top-Tier	Baseline
Typical Application	BVLOS & Heavy-Lift UAVs	Standard Inspection Drones

400Wh/kg high energy density battery 1C Discharge Curve

400Wh/kg high energy density battery 3C Discharge Curve

400Wh/kg high energy density battery Discharge Capacity Fade Rate

Related Solution:

How to Choose Heavy-Lift UAV Batteries | >60min Flight

Mindway's High-density batteries remain reliable even in extreme environments-56°C Low Temperature Series

👇 Consult an Engineer for Custom Solutions

📞WhatsApp：+86 18971062394

Specification

Number	Items	Specifications
1	Pack Specifications	12S1P
2	Nominal Voltage	44.4V
3	Nominal Capacity	39000mAh
4	Energy	1732Wh
5	Weight	Approx. 4.6kg ± 0.1kg
6	Dimension	Approx. 90125206 mm
7	Max. Continuous Discharge Current	3C
8	Pack Voltage Range	30V - 51V
9	Cycle Life	≥ 200 times @80%

Product Advantage

1

Ultra-high energy density maximizes flight time
2

Optimized for fixed-wing and long-range UAV platforms
3

Lightweight design improves payload efficiency
4

Stable discharge behavior for sustained cruise phases

Frequently Asked Questions

Is 400Wh/kg the highest energy density available for 12S UAV batteries?
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Yes, reaching 400Wh/kg at a pack level for a 12S (44.4V) configuration is a major technological milestone. It represents the next generation of high-density lithium power, specifically optimized for industrial and tactical drone platforms.
What does "density battery w kg" mean for my drone's flight time?
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Density battery (Wh/kg) refers to the amount of energy a battery can store per kilogram of its weight. A high-density battery like our 400Wh/kg 12S pack means you get more "juice" without the weight penalty, which is the key to extending flight endurance beyond the 60 or 90-minute mark.
How much flight time can I gain with a 400Wh/kg battery?
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witching to 400Wh/kg from standard 250Wh/kg batteries can potentially increase flight time by 50-80%, allowing professional platforms to exceed the 60 or 90-minute mark with significant payloads.
Is the 39000mAh 12S pack compatible with standard heavy-lift drones?
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Yes, our 12S configuration is designed to be a direct replacement for standard high-voltage systems, providing a stable voltage plateau even under heavy motor loads.
Can the UAV battery be customized for specific drone platforms?
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Yes. Mindway provides customized UAV battery solutions for drone manufacturers and system integrators. Battery configuration, connectors, housing structure, and communication interfaces can be optimized according to the specific requirements of different UAV platforms.
Does Mindway provide technical support for UAV battery integration?
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Yes. Mindway offers technical support and engineering consultation to help customers integrate high energy density batteries into their UAV platforms. Our team works closely with drone manufacturers to optimize power performance and system compatibility.
How can I request more information or a quotation?
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If you are developing a UAV platform and looking for a high energy density battery solution, please contact the Mindway team via the email address or phone number listed at the bottom of this website to obtain technical details, customization options, and quotation information.