18650 li 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 the price every company can accept. The protection circuit can be built-in for safety control include 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.

18650 Lithium Ion Battery

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.
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

18650 Lithium Ion Battery List

LP18650D 2P3.7440019*37*70
LP18650C 2P3.7520019*37*70
LP18650B 2P3.7560019*37*70
LP18650A 2P3.7640019*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
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
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
LP18650A 3S11.1350019*56*70
Fill out my online form.