solid state lithium ion batteries
The Semi-Solid State Battery is designed for high-performance drone applications that demand reliable power, high energy density, and improved safety. Offering an energy density of up to 400Wh/kg, it delivers exceptional power efficiency and extended flight times for professional UAV operations.
Engineered to perform in harsh environments, this battery supports stable discharge across a wide temperature range from -30°C to 55°C, making it suitable for both extreme cold and high-heat conditions. With a 3C–10C discharge capability, it provides robust power output for even the most demanding drone missions.
Designed for an exceptionally long service life, this battery ensures sustained performance over thousands of charge cycles, significantly reducing the need for frequent replacements. Combining high safety, durability, and excellent performance, this semi-solid state battery solution is ideal for industrial, commercial, and advanced recreational drones.
Key Features:
Stable discharge performance from -30°C to 55°C
Designed for extreme cold and high-temperature environments
80% capacity retention after 800 cycles
Up to 400Wh/kg high energy density
3C–50C high discharge capability
Enhanced safety and reliability
Specification :
| Model | Capacity (mAh) | Nominal Voltage (V) | Configuration | Operating Voltage (V) | Dimensions (L*W*H mm) | Weight (g) |
| WL-6S-16000 | 16000 | 22.2 | 6S~16Ah | 25.2-16.8 | 195*78*52 | 1570 |
| WL-6S-22000 | 22000 | 22.2 | 6S~22Ah | 25.2-16.8 | 195*78*69 | 1980 |
| WL-6S-27000 | 27000 | 22.2 | 6S~27Ah | 25.2-16.8 | 206*91*65 | 2380 |
| WL-6S-30000 | 30000 | 22.2 | 6S~30Ah | 25.2-16.8 | 206*91*70 | 2650 |
| WL-12S-16000 | 16000 | 44.4 | 12S~16Ah | 50.4-33.6 | 195*78*100 | 2980 |
| WL-12S-22000 | 22000 | 44.4 | 12S~22Ah | 50.4-33.6 | 195*78*133 | 3950 |
| WL-12S-27000 | 27000 | 44.4 | 12S~27Ah | 50.4-33.6 | 206*91*127 | 4700 |
| WL-12S-30000 | 30000 | 44.4 | 12S~30Ah | 50.4-33.6 | 206*91*140 | 5200 |
| WL-14S-27000 | 27000 | 51.8 | 14S~27Ah | 58.8-39.2 | 206*91*150 | 5480 |
| WL-14S-30000 | 30000 | 51.8 | 14S~30Ah | 58.8-39.2 | 206*91*160 | 6100 |
| WL-6S-35000 | 35000 | 21.9 | 6S~35Ah | 25.2-16.8 | 206*91*73 | 2800 |
| WL-12S-35000 | 35000 | 43.8 | 12S~35Ah | 50.4-33.6 | 206*91*142 | 5500 |
| WL-14S-35000 | 35000 | 51.1 | 14S~35Ah | 58.8-39.2 | 206*91*163 | 6300 |
Applications :
Industrial Drones
Agricultural UAVs
Mapping & Survey Drones
Inspection Drones
Delivery Drones
RC Aircraft
VTOL UAV Platforms
Emergency & Security UAV Systems
Founded in 2014, HEYI ENERGY is a leading high-tech manufacturer specializing in advanced lithium battery solutions for both energy storage and power applications. We focus on the research, development, and large-scale manufacturing of customized lithium battery systems, including LiFePO4 and lithium-ion (NMC) technologies, serving customers worldwide with safe, reliable, and high-performance energy solutions.
With over 50,000 square meters of modern production facilities and a professional team of more than 1,500 employees, including 300+ experienced R&D engineers, HEYI ENERGY provides comprehensive OEM and ODM services for a wide range of industries and applications.
Our core products and customized battery solutions include:
Electric vehicle (EV) battery systems
Marine and yacht lithium batteries
Aircraft and aviation battery solutions
Robot and AGV power batteries
Industrial machinery and forklift batteries
Residential, commercial, and industrial energy storage systems
Ultra-low temperature lithium batteries for extreme environments
Solar energy storage and backup power solutions
At HEYI ENERGY, we specialize in designing and manufacturing tailor-made battery packs based on different voltage, capacity, size, communication protocol, and environmental requirements. Our engineering team has extensive expertise in battery system integration, BMS development, operational control systems, and rigorous testing processes, ensuring excellent safety, compatibility, stability, and long service life.
Today, HEYI ENERGY partners with customers in over 100 countries and regions, delivering innovative lithium battery and solar energy solutions for the rapidly evolving clean energy industry.
Driven by innovation and sustainability, HEYI ENERGY is committed to powering electric mobility, intelligent equipment, and renewable energy systems worldwide — contributing to a smarter, greener, and low-carbon future.
HEYI ENERGY – A globally recognized manufacturer of lithium battery and solar energy products.
Q1: What products does HEYI ENERGY manufacture?
A: HEYI ENERGY specializes in LiFePO4 batteries, lithium-ion battery packs, energy storage systems (ESS), EV batteries, marine batteries, robot batteries, forklift batteries, and customized power solutions.
Q2: Do you provide OEM & ODM services?
A: Yes. We provide professional OEM & ODM lithium battery solutions, including customized voltage, capacity, size, BMS, and communication protocols.
Q3: What industries do your batteries serve?
A: Our batteries are widely used in electric vehicles, yachts, aircraft, robots, solar energy storage systems, industrial equipment, RVs, and backup power applications.
Q4: What battery chemistries do you offer?
A: We mainly produce LiFePO4 batteries and NMC lithium-ion batteries for both energy storage and motive power applications.
Q5: What is your MOQ?
A: Our MOQ is 1 piece for most products. Larger quantities receive better pricing.
Q6: How long is the production time?
A: Standard products are often available from stock. Customized battery packs usually require 10–15 working days.
Q7: Can you make customized lithium battery packs?
A: Yes. We can customize batteries for EVs, marine systems, robots, solar ESS, and industrial machinery based on your project requirements.
Q8: How do you ship lithium batteries?
A: We support air freight, sea freight, railway shipping, and door-to-door delivery worldwide.
Q9: How do you ensure battery quality?
A: All batteries undergo strict testing, including capacity, safety, and cycle life tests, to ensure reliable performance.
Q10: What after-sales service do you provide?
A: We provide professional technical support, troubleshooting assistance, and spare parts service for all lithium battery products.
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