18650 Lithium Ion Battery

High Quality & High Capacity

We offer a range of pre-configured lithium-ion battery packs that are immediately
available for standard applications.
Our 18650 lithium battery shows real rated capacity at a price every company
can accept. The protection circuit can be built-in for safety control, including
over-charging, over-discharge, short-circuit, and temperature control. The additional connector made by JST, Molex & Hirose is also available with the custom length
of wires.

Standard Lithium-Ion Battery 18650 Series

We are introducing our latest Li-Ion Rechargeable Battery, a pinnacle of portable power technology designed for modern energy needs. This new battery is crafted to deliver high energy density, allowing for smaller and lighter designs without compromising performance. Experience the longevity of over 500 charge cycles, ensuring a reliable power source that stands the test of time.

LP18650 Lithium Ion Battery Voltage DefiniItions

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 the discharge rate and temperature.
End of Charge Voltage: Terminal voltage after the charge is 4.2 V.

3.7V LP18650 Lithium ion Battery Capacity Definitions

The capacity C of the battery is defined by the discharge current I and the discharge time t: C = I * t
I = constant discharge current
t = duration from start of discharge to end of 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.

Lithium Battery LP18650 Current Definitions

Charge and discharge rates may be given as multiples of the Rated Capacity (C) in Amperes (A) with the term CA.
Example:
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

Advantages of 18650 Lithium-ion Battery

18650 lithium-ion batteries are renowned for their versatility and performance. Here are the key advantages of these batteries:

High Energy Density: 18650 lithium-ion batteries have a high energy density, meaning they can store much energy relative to their size. This makes them ideal for applications requiring a lot of power in a compact form.

Long Cycle Life: These lithium-ion batteries can endure many charge-discharge cycles, often up to 500 cycles or more, making them a cost-effective option over time due to their longevity.

Consistent Voltage Output: 18650 lithium-ion batteries provide a stable voltage output throughout their discharge cycle, ensuring consistent performance of the powered device.

High Discharge Rate: They can deliver high discharge currents, which is crucial for devices requiring quick bursts of power, such as power tools and electric vehicles.

Wide Temperature Range: These lithium-ion batteries operate efficiently across a broad temperature range, from -20°C to 60°C, making them suitable for diverse environmental conditions.

Lightweight and Compact: Despite their high capacity, 18650 lithium-ion batteries are relatively lightweight and compact, enhancing the portability of the devices they power.

Safety Features: Many 18650 lithium-ion batteries have built-in protection circuits to prevent overcharging, over-discharging, and short-circuiting, enhancing their safety and reliability.

Versatility: They are used in various applications, including laptops, flashlights, power tools, electric vehicles, and consumer electronics, showcasing their adaptability.

Choose Best Lithium Ion Battery 18650

18650 lithium-ion batteries offer a powerful combination of high energy density, long life, stable performance, and safety features, making them a preferred choice for numerous applications requiring reliable and efficient power sources.
The 18650 lithium-ion battery and lithium-ion battery pack sizes below include the protection circuit module. Samples are available, and there is a short lead time and fast global shipping.

ModelVoltage(V)Capacity(mAh)Size(mm)
LP18650D3.7220018*65
LP18650C3.7260018*65
LP18650B3.7280018*65
LP18650A3.7320018*65
LP18650S3.7335018*65
LP18650A+3.7350018*65
LP18650D 2P3.7440019*37*70
LP18650C 2P3.7520019*37*70
LP18650B 2P3.7560019*37*70
LP18650A 2P3.7640019*37*70
LP18650S 2P3.7670019*37*70
LP18650A+ 2P3.7700019*37*70
LP18650D 3P3.7660019*56*70
LP18650C 3P3.7780019*56*70
LP18650B 3P3.7840019*56*70
LP18650A 3P3.7960019*56*70
LP18650S 3P3.71005019*56*70
LP18650A+ 3P3.71050019*56*70
LP18650D 2S7.4220019*37*70
LP18650C 2S7.4260019*37*70
LP18650B 2S7.4280019*37*70
LP18650A 2S7.4320019*37*70
LP18650S 2S7.4335019*37*70
LP18650A+ 2S7.4350019*37*70
LP18650D 3S11.1220019*56*70
LP18650C 3S11.1260019*56*70
LP18650B 3S11.1280019*56*70
LP18650A 3S11.1320019*56*70
LP18650S 3S11.1335019*56*70
LP18650A+ 3S11.1350019*56*70
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