FPV & UAV Lithium Drone Battery Manufacturer

Delong supplies drone lithium battery solutions ranging from 1500mAh to 35000mAh, including high-discharge LiPo batteries, high-energy-density semi-solid-state batteries, and 21700 cylindrical lithium battery packs.
We offer 2S to 6S configurations, as well as custom battery packs with higher series counts. Our OEM/ODM services help you match battery specifications to your aircraft’s available space, weight limits, and power requirements.

FPV & UAV Battery Series

Explore our drone battery series, including high-discharge LiPo and lightweight semi-solid-state batteries, to find a suitable option for your aircraft’s power, weight, and flight endurance requirements.

Small FPV LiPo

1500–5200mAh, 2S–6S

Best for

High peak power for frequent acceleration and climbing

Key Feature

High-performance battery configuration

Applications

FPV freestyle, racing drones, RC aircraft

High-Discharge UAV LiPo

6000–30000mAh, 6S

Best for

Sustained high-power operation for larger aircraft

Key Feature

High continuous-current output

Applications

Large FPV drones, aerial photography, industrial multirotors

Semi-Solid-State HD

16000–35000mAh, 6S1P

Best for

Weight-sensitive UAV projects requiring greater payload flexibility

Key Feature

Lower pack weight at the same rated energy

Applications

Agricultural spraying, industrial inspection, surveying drones

21700 UAV

8000–12000mAh, 6S2P

Best for

Battery replacement or upgrades for existing cylindrical-cell platforms

Key Feature

21700 cylindrical-cell configuration

Applications

Fixed-wing UAVs, cylindrical-cell-powered platforms

Battery Selection Support: Share your aircraft’s operating voltage, current requirements, battery compartment dimensions, and weight limits. Our engineering team can help identify a suitable battery configuration for your project.

Battery Series & Detailed Specifications

Direct factory supply and volume wholesale configurations for global dealers and OEMs.

Small FPV & RC LiPo Batteries

Applications: FPV Freestyle Drones · Racing Drones · RC Aircraft

Use Grade A Lifepo4 Prismatic Cells

Built with low-resistance lithium polymer cells using an automated stacking process, this series supports peak discharge rates of up to 150C. Designed for highly maneuverable FPV flight, these batteries deliver stable voltage output and help reduce voltage sag during rapid acceleration and steep climbs.

Configurations

2S / 3S / 4S / 5S / 6S

Tension nominale

7.4V/11V/14.8V/18.5V/22.2V

Discharge connector

Deans/XT60/Customize

Charge connector

JST-XH

Température de fonctionnement

-25°C to 50°C

Available Models & Specifications

 

 

 

Modèle Capacité Single Battery Size Single Battery Weight Discharge Rate (Customizable)
LP-1550 1500mAh 73 × 35 × 7 mm 42g 75C / 150C
LP-2200 2200mAh 106 × 34 × 8 mm 60g 60C / 120C 
LP-3200 3200mAh 138 × 40 × 9 mm 85g 60C / 120C 
LP-4200 4200mAh 138 × 43 × 9 mm 105g 50C / 100C 
LP-5200 5200mAh 138 × 43 × 10 mm 130g 60C / 80C 

High-Discharge UAV & Multirotor Batteries

Applications: 7–15-inch FPV Drones · Professional Aerial Photography · Industrial Multirotors

Use Grade A Lifepo4 Prismatic Cells

Designed for aircraft with larger propellers and higher payload requirements, this series delivers sustained high-current output. Its effective heat dissipation and stable discharge voltage help maintain safe, reliable performance during extended high-power flight.

Configurations

6S

Tension nominale

22.2V

Discharge connector

T/ XT60 / Customize

Charge connector

JST-XH

Température de fonctionnement

-25°C to 50°C

Available Models & Specifications

 

 

 

 

Modèle Capacité Single Battery Size Single Battery Weight Discharge Rate (Customizable)
LP-6000 6000mAh (133.2Wh) 158 × 48 × 50 mm 845g 60C / 80C / 100C 
LP-8000 8000mAh (177.6Wh) 168 × 59 × 55 mm 1120g 60C / 80C / 100C 
LP-10000 10000mAh (222.0Wh) 168 × 59 × 60 mm 1250g 60C / 80C / 100C 
LP-12000 12000mAh (266.4Wh) 178 × 74 × 60 mm 1450g 60C / 80C / 100C 
LP-16000 16000mAh (355.2Wh) 185 × 75 × 64 mm 2040g 60C 
LP-22000 22000mAh (488.4Wh) 202 × 90 × 64 mm 2600g 25C / 50C
LP-30000 30000mAh (666.6Wh) 220 × 105 × 65 mm 3300g 25C / 50C

Semi-Solid-State High-Energy-Density (HD) Drone Batteries

Applications: Agricultural Spraying · Security & Industrial Inspection · Aerial Surveying · VTOL Aircraft

Use Grade A Lifepo4 Prismatic Cells

Using semi-solid-state electrolyte technology, the HD series offers a gravimetric energy density of 250–320Wh/kg. Compared with conventional LiPo batteries of the same energy capacity, these packs can weigh approximately 30% less, leaving more weight available for payload equipment and helping improve flight endurance.

Configurations

6S1P

Tension nominale

22.2V

Discharge connector

XT90/ AS150/ Customize

Charge connector

JST-XH

Température de fonctionnement

-25°C to 50°C

Same Energy, Approximately 30% Less Weight

Weight comparison at the same rated energy: 355.2Wh / 16000mAh

Standard LiPo · LP-16000

2,040g

Semi-Solid-State HD · LP-16000-HD

1,430g

610g Lighter | 29.9% Weight Reduction

Available Models & Specifications

 

 

 

 

 

 

Modèle Capacité Single Battery Size Single Battery Weight Discharge Rate (Customizable)
LP-16000-HD 16000mAh (355.2Wh) 198 × 78 × 52 mm 1430g 5C / 10C
LP-22000-HD 22000mAh (488.4Wh) 198 × 78 × 67 mm 1860g 5C / 10C
LP-27000-HD 27000mAh (599.4Wh) 208 × 91 × 65 mm 2020g 5C / 10C
LP-30000-HD 30000mAh (666.0Wh) 208 × 88 × 66 mm 2280g 5C / 10C
LP-35000-HD 35000mAh (777.0Wh) 208 × 88 × 66 mm 2450g 5C / 10C

21700 Cylindrical Li-ion UAV Drone Battery Packs

Applications: Cylindrical-Cell UAV Platforms · Fixed-Wing Aircraft · System Integration

Use Grade A Lifepo4 Prismatic Cells

Built with 21700 cylindrical lithium-ion cells in a 6S2P configuration, these battery packs offer a rigid cell structure and good cost efficiency. They are suited to aircraft with relatively steady cruising power demands and can be customized to fit your battery compartment dimensions and connector requirements.

Configurations

6S2P

Tension nominale

22.2V

Discharge connector

XT60 / Customize

Charge connector

JST-XH

Température de fonctionnement

-25°C to 50°C

Available Models & Specifications

 

 

 

 

 

Modèle Capacité Single Battery Size Single Battery Weight Discharge Rate (Customizable)
LP-8000-P 8000mAh (177.6Wh) 132 × 72 × 45 mm 860g 5C / 10C
LP-12000-P 12000mAh (266.4Wh) 142 × 64 × 66 mm 1300g 5C / 10C

OEM/ODM Drone Battery Customization

We provide engineering and customization support for drone manufacturers and system integrators with specific project requirements.

OEM/ODM Development Process

01 Requirements Review

02 Solution & Quotation

03 Sample Production

04 Customer Flight Validation

05 Specification Approval

06 Mass Production & Delivery

Manufacturing Process & Quality Control

Usine énergétique de Delong
Automated Cell Stacking

Our automated stacking process provides precise control over cell construction, helping maintain consistency and stable performance under high-discharge conditions.

Cellules de batterie A+
Cell Matching & Selection

Before delivery, all cells undergo resistance, capacity, and discharge-voltage matching to minimize differences between cells and reduce cell voltage imbalance during operation.

Battery Performance Testing

Completed drone battery packs are checked against the agreed electrical specifications before delivery.

Applicable CE and RoHS documentation, UN38.3 test reports, and MSDS/SDS are available according to battery model, with support for compliant international battery shipments.

Questions fréquemment posées

Yes. We support sample orders and OEM/ODM bulk production. You can order 1–2 battery packs for installation and flight testing. The typical MOQ for standard models is 20–50 packs, depending on customization requirements.

Under standard charging and discharging conditions, our semi-solid-state HD batteries retain more than 80% of their capacity after 500 cycles, combining high energy density with long-term usability.

We can provide applicable CE and RoHS documentation, UN38.3 test reports, MSDS/SDS, and drop test documentation. We also coordinate dangerous goods shipments in accordance with customs and airline requirements.

Request a Drone Battery Quote

Share your target battery model, order quantity, or aircraft specifications, including operating voltage, battery compartment dimensions, maximum allowable battery weight, and current requirements. Our engineering team will help identify a suitable battery configuration and provide a quotation.