Our goal is to be your true partner in Consumer Electronics field in China.Dengfeng has a skilled engineering team, focusing on new energy charging management systems, UPS, inverter power supplies, EPS, LED emergency power supplies and lighting. It has rich experience in emergency equipment development and design, emergency lights and emergency power supply kits product manufacturing and OEM, and is committed to perfecting every stage from product development, process improvement to production supervision to ensure that every product delivered meets strict quality and performance standards. With competitive prices and guaranteed product quality, it is a good choice for your long-term cooperation.
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Brand-New Lithium Batteries 3.7V / 7.4V / 12V / 24V / 36V / 48V / 60V – Customizable Packs Available
18650 3800 mAh flashlight small fan high-capacity cycle rechargeable ternary lithium battery cell
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18650 Model 3300mAh Li-ion Ternary Battery 3.7V High-capacity Battery Cell
18650 3800 mAh flashlight small fan high-capacity cycle rechargeable ternary lithium battery cell
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18650 3800 MAh Flashlight Small Fan High-capacity Cycle Rechargeable Ternary Lithium Battery Cell
18650 3800 mAh flashlight small fan high-capacity cycle rechargeable ternary lithium battery cell
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18650 Lithium Battery 3.7V4000mah Table Lamp Headlamp Rechargeable Power Lithium Battery
18650 lithium battery 3.7V4000mah table lamp headlamp rechargeable power lithium battery Model:
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21700 Rechargeable Lithium Cell Electric Drill Power Tools 3.7V6000mAh Lithium Ion Battery
21700 rechargeable lithium cell electric drill power tools 3.7V6000mAh lithium ion battery Model:
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Why Choose Us
Our products
Dengfeng has complete production equipment and testing equipment, including japanese panasonic high-speed placement machine, japanese yamaha medium-speed placement machine, jintuo reflow soldering, mengtuo aoi fully automatic optical inspection instrument, and multiple fully automatic smt and dip production lines, ensuring that all production is under dengfeng's strict quality control.
Our certificates
Dengfeng is making great efforts to develop new products to meet market requirement, which has already passed the iso9001, iso14001 and iso45001 standards, and obtained ul,etl, tuv mark, ce, cb, saa certificates. Dengfeng currently has 5 invention patents and 35 utility model patents.
Our team
Dengfeng is a national high-tech enterprise, covers an area of 10000 square meters and has more 100 employees, integrating scientific research, design, production and sales.
Quality control
We have a professional quality control team to ensure our products, check the raw materials before starting production, check the raw materials before starting production, and conduct 100% inspection before shipment.
Advantages of Lithium Ion Battery
Lightweight and compact design
Lithium-ion batteries stand out with their lightweight and compact design, while still demonstrating exceptionally high energy density. With the capacity to deliver up to five times more power compared to conventional lead-acid batteries, they provide unparalleled efficiency, making them an ideal choice for portable energy storage solutions.
Long battery lifespan
Lithium-ion batteries can endure approximately 2,000 charge-discharge cycles, providing a longer lifespan of 8-10 years.
High energy density
Lithium-ion batteries offer superior energy density compared to other battery types. Their low self-discharge rate ensures minimal capacity loss, even during periods of inactivity.
Enhanced safety
Lithium-ion batteries are manufactured to meet stringent international safety standards, making them resistant to water, explosions, and other hazards. They are widely used in transportation vehicles and electronic devices.

Lithium-ion batteries have found widespread use due to their wide range of uses. In the consumer electronics sector, lithium-ion batteries have become the standard for powering devices. Smartphones, laptops, and digital cameras all rely on lithium-ion batteries due to their high energy density and long lifespan. In the automotive industry, lithium-ion batteries have largely driven the shift to electric vehicles. These batteries have the high energy efficiency and lightweight characteristics required for electric vehicles, which extend driving range and reduce charging time. Renewable energy systems have also benefited from lithium-ion batteries. As the world shifts to more sustainable energy sources, the need for efficient energy storage solutions has become apparent. Lithium-ion batteries, with their high efficiency and long cycle life, are increasingly being used to store energy from solar and wind systems. They can store excess energy generated during peak production periods and then release it when production decreases, ensuring a steady supply of electricity. In addition, lithium-ion batteries have applications in industrial settings. Due to their reliability and high performance, they are used in power tools, medical equipment, and emergency power backup systems. In the aerospace and marine sectors, their high energy-to-weight ratio makes them ideal for powering a variety of onboard systems.
Product Description
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Lithium Ion Battery |
Model |
18650 |
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Capacity(C) |
2200mAh |
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Rated voltage(V) |
3.7V |
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Typical Impedance (mΩ) |
≤30mΩ |
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Battery material |
NMC material |
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Voltage at end of discharge |
≥2.5V |
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Voltage at end of charge |
4.25V |
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Standard charge |
0.2C |
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Standard discharge |
0.2C |
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Max Charge current |
0.5C |
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Max Continuous Discharge current |
1C |
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Weight (Approx.) |
46±1g |
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Dimension(L×W×H)(mm) |
18*50mm |
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Operating temperature |
Charge temperature |
0ºC~45ºC |
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Discharge temperature |
-20ºC~60ºC |
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Delivery
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Package Size |
30.00cm * 30.00cm * 30.00cm |
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Package Gross Weight |
20.000kg |
Packaging & Shipping
Packing list:
1-metre Parallel line *1pc
User instruction*1pc
2-metre inverter communication network cable *1pc
Red-black 80C meters parallel positive and negative wires (Line 6)*1 pair
User instruction*1pc
As one of the most professional lithium ion battery manufacturers and suppliers in China, we're featured by quality products and low price. Please rest assured to wholesale cheap lithium ion battery in stock here and get quotation from our factory. Also, customized service is available.
downlight led conversion kit, emergency light for power outage




