Lithium Ion Battery 18650

Standard Lithium-Ion Battery 18650 Series with High Quality & High Capacity

We offer a range of pre-configured 18650 lithium-ion battery packs that are immediately available for standard applications. They are made from cylindrical form-factor cells, with excellent energy density &low self-discharge. Our battery is built with PCM and over-current protection. Also, complete with cables&connectors are ready for use. We have four types of 18650 Series Lithium-ion Battery, 2200mAh, 2600mAh, 2800mAh, and 3200mAh. This cylindrical lithium-ion battery 18650 can make a battery pack, in series or in parallel.

Hot 18650A+ Lithium Ion Battery Pack

LP18650A+ 3500mAh+JST XHP-2

18650A+ 3.7V 3500mAh

Rechargeable Lithium-ion Battery LP18650A+, the capacity is 3500mAh, it with protection circuit and wires 50mm and JST XHP-2 connector.

  • 18650: 1 piece
  • Capacity: 3500mAh
  • Voltage: 3.7V
  • Size: 18.2*70mm
  • Cables: 50mm
  • Connector: JST XHP-2
18650A+ 3P 10500mAh

18650A+ 3P 3.7V 10500mAh

Lithium-ion Battery 18650A+ 3P, the capacity is 10500mAh, it with protection circuit and 10K NTC and wires 50mm and Molex 51021-0300 connector.

  • 18650: 3 piece
  • Capacity: 10500mAh
  • Voltage: 3.7V
  • Size: 19mm x 56mm x 70mm
  • Cables: 50mm
  • Connector: Molex 51021-0300
LP18650A+ 2P 7000mAh+JST PHR-2

18650A+ 2P 3.7V 7000mAh

2 pcs Li-ion Battery 18650A+ in parallel, the capacity is 7000mAh, it with protection circuit and wires 70mm and JST PHR-2 connector.

  • 18650: 2 piece
  • Capacity: 7000mAh
  • Voltage: 3.7V
  • Size: 18mm x 36mm x 65mm
  • Cables: 70mm
  • Connector: JST PHR-2
LP18650A+ 3S2P 7000mAh+Molex 456450200

18650A+ 3S2P 11.1V 7000mAh

18650A+ 3S2P rechargeable li-ion battery pack, 11.1V 7000mAh, with protection circuit and wires 200mm and Molex 45645-0200 connector.

  • 18650: 6 piece
  • Capacity: 7000mAh
  • Voltage: 11.1V
  • Size: 54mm x 36mm x 65mm
  • Cables: 200mm
  • Connector: Molex 45645-0200

18650 Lithium-ion Battery Advantages

The advantages of 18650 Lithium-ion batteries, including high energy density, long-lasting performance, high discharge rates, versatility, safety features, rechargeability, and wide availability, make them an excellent choice for numerous electronic devices and applications. Whether you need reliable power for portable devices, high-performance tools, or energy-intensive applications, 18650 Lithium-ion batteries provide the durability, efficiency, and convenience you seek. Consider LiPol Battery Co., Ltd as your trusted source for superior 18650 Lithium-ion batteries that deliver exceptional performance and reliability. Visit our website to explore our extensive range and discover the power of 18650 Lithium-ion batteries for your projects.

High Energy Density: 18650 Lithium-ion batteries are known for their high energy density, which means they can store a significant amount of energy in a compact size. This makes them ideal for portable devices where space is limited, such as laptops, power tools, and electronic gadgets.

Long-lasting Performance: 18650 Lithium-ion batteries typically have a longer cycle life compared to other rechargeable battery types. They can withstand hundreds of charge and discharge cycles without significant degradation, providing extended usage and cost-effectiveness in the long run.

High Discharge Rates: 18650 Lithium-ion batteries are capable of delivering high discharge rates, making them suitable for applications that require bursts of power or high current output. This makes them popular choices for devices such as electric vehicles, drones, and flashlights.

Versatility: 18650 Lithium-ion batteries come in various configurations and capacities, allowing for versatility in meeting different power requirements. They can be used individually or combined in series or parallel configurations to achieve the desired voltage and capacity levels.

Safety Features: Reputable 18650 Lithium-ion batteries often incorporate advanced safety features such as built-in protection circuits, thermal controls, and overcharge/over-discharge protection. These safety mechanisms help prevent potential hazards such as overheating, short circuits, and voltage spikes.

Rechargeable and Environmentally Friendly: 18650 Lithium-ion batteries are rechargeable, allowing for multiple uses and reducing waste compared to disposable batteries. This makes them more environmentally friendly and cost-effective over time.

Wide Availability: 18650 Lithium-ion batteries are widely available in the market, making it easier to find replacements or additional batteries when needed. Their popularity has led to a broad range of options from reputable manufacturers, ensuring quality and compatibility for various applications.

Reference Table: Lithium Ion Battery LP18650


Open Circuit Voltage (OCV):

Equilibrium potential 3.0 V to 4.2 V on average, dependent on temperature, storage duration and state of charge.
Nominal Voltage is typically 3.7 V, see specifications for individual batteries. 

End of Discharge Voltage:

The voltage at the end of discharging is 2.75 V to 3.2 V per cell, depending on discharge rate and temperature.
End of Charge Voltage: Terminal voltage after charge is 4.2 V.


The capacity C of the lithium ion battery is defined by the discharge current I and the discharge time t: C = I * t
I = constant discharge current
t = duration from the start of discharge to end of the discharge
Rated capacity: The rated capacity C represents the energy delivered by the battery at a discharge rate of 5 h (0.2 CA) expressed in mAh (milliampere-hours). The reference temperature is + 22 °C ± 3 °C, and the final discharge voltage is 3.0 V.

Available Capacity:

The factors that affect the available capacity are:

  • Discharge rate
  • End of discharge voltage
  • Ambient temperature
  • State of charge
  • Cycle history

At the higher than nominal discharge rates, the available capacity is accordingly reduced.


Charge and discharge rates of Cylindrical lithium ion battery may be given as multiples of the Rated Capacity (C) in Ampères (A) with the term CA.

Rated Capacity C = 1000 mAh
0.1 CA = 100 mA, 1 CA = 1000 mA

Nominal Discharge Current:

The nominal discharge current of a CellPac LITE battery is the 5 hour discharge current (0.2 CA). It is the current at which the nominal capacity of a cell is discharged in 5 hours.

I = C/t = C/5 = 0.2 CA when t = 5 h

Choose Best Lithium Ion Battery 18650

The below 18650 lithium-ion battery and lithium-ion battery pack size include the protection circuit module. Samples available, short lead time, and fast global shipping.

LP18650D 2P3.7220019*37*67
LP18650C 2P3.7520019*37*67
LP18650B 2P3.7560019*37*67
LP18650P 2P3.7600019*37*67
LP18650A 2P3.7640019*37*67
LP18650S 2P3.7670019*37*67
LP1865A+ 2P3.7700019*37*67
LP18650D 3P3.7660019*56*70
LP18650C 3P3.7780019*56*70
LP18650B 3P3.7840019*56*70
LP18650P 3P3.7900019*56*70
LP18650A 3P3.7960019*56*70
LP18650S 3P3.71005019*56*70
LP18650A+ 3P3.71050019*56*70
LP18650D 2S7.4220019*37*67
LP18650C 2S7.4260019*37*67
LP18650B 2S7.4280019*37*67
LP18650P 2S7.4300019*37*67
LP18650A 2S7.4320019*37*67
LP18650S 2S7.4335019*37*67
LP18650A+ 2S7.4350019*37*67
LP18650D 3S11.1220019*56*70
LP18650C 3S11.1260019*56*70
LP18650B 3S11.1280019*56*70
LP18650P 3S11.1300019*56*70
LP18650A 3S11.1320019*56*70
LP18650S 3S11.1335019*56*70
LP18650A+ 3S11.1350019*56*70

Lithium Ion Battery 18650 Applications

3200mAh Lithium Ion Battery LP18650A For Instant Light

The World’s Most Efficient Manually-Powered Light: it generates instant renewable light & power, simply with the pull of a cord! instant power, anytime, anywhere.
Prepare for that powercut, brighten up your BBQ, clamp in the garden, power up your phone, tidy the tent, sort out the shed……This light built-in 3200mAh cylindrical Lithium Ion Battery LP18650A, provides over 60 minutes of light or charges 1 smartphone.

The instant light provides clean, safe and affordable power for people who without access to electricity, eliminating the need for kerosene lamps. This light using efficient biomechanics and the latest cylindrical lithium ion battery technology, just pull the cord, you will get the light, 1 minute pulling 60 minutes light. It’s portable and multi functional, you can power your devices from its USB port, also you can use the solar panel to charge the “instant light”.

LP18650 3P 8000mAh Lithium Ion Battery for Smart Luggage

This smart luggage perfect for all travelers, especially those combining both work and play. The luggage has the world’s first and only patented hanger system. Finally, a wrinkle-free and comfortable solution that wraps your best suits and dresses. You can also get all technology stacks, your own personalized smart locks (face ID, touch ID, Morse code), built-in digital scales, a detachable 8000mAh LP18650 3P Lithium Ion battery pack, and a GPS location tracker, so You always know where your luggage is, all connected to the luggage app.

Smart Luggage Specifications

  • Dimensions: 500mm x 80mm x 28mm
  • Weight: 6g
  • Color: Silver, Red, Pink, Blue, Black
  • Battery: 8000mAh Lithium Ion Battery LP18650 3P
  • App: iOS and Android
  • Warranty: Lifetime Guarantee: TSA, FAA, DOT & IATA Compliant

2023 New In Rechargeable Lithium Ion Battery List

A hard case lithium-ion battery is a type of lithium-ion battery that is designed with a durable outer casing to protect the battery cells inside. These batteries are commonly used in applications where the battery may be subject to impact, vibration, or other types of mechanical stress, such as in power tools, remote-controlled vehicles, and marine applications.

The hard case of a lithium-ion battery is typically made of materials such as plastic, metal, or composite materials that are designed to withstand impacts and protect the battery cells from damage. The internal cells of a hard case lithium-ion battery are the same as those used in other lithium-ion batteries, consisting of a positive electrode made of lithium cobalt oxide, a negative electrode made of graphite, and a lithium-ion electrolyte.

One advantage of hard case lithium-ion batteries is that they can provide additional protection against damage and extend the overall lifespan of the battery. They are also less prone to leakage or rupture than soft-shell lithium-ion batteries, which can be an important consideration in some applications.

ModelCapacityC-RateDiameter (mm)Height (mm)ResistanceWeight