What Is the 14250 Battery? Features & Applications Explained

28 November 2025
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What Is the 14250 Battery?

The 14250 lithium-ion rechargeable battery is a small cylindrically-shaped battery that is in shape. It is 14250 in size, so named:

 

  • 14mm in diameter
  • 50mm in length

 

Their use is usually in a system where there is a need to have small, powerful sources, including high-performance flashlights, medical equipment, including hearing aids, or even some small electronics like cameras.

 

14250 Battery Specifications

Specification

Details

Battery Type

Lithium-ion (Li-ion)

Model Number

14250

Diameter

14mm

Height

50mm

Nominal Voltage

3.7V

Capacity

600mAh – 700mAh (depends on the brand and model)

Typical Charge Voltage

4.2V

Discharge Cut-off Voltage

2.5V – 3.0V

Chemistry

Lithium Cobalt Oxide (LiCoO2)

Weight

Approximately 15g – 20g

Max Continuous Discharge Current

1A (depends on manufacturer)

Max Pulse Discharge Current

2A (depends on manufacturer)

Charging Method

Constant Current, Constant Voltage (CC/CV)

Cycle Life

300 to 500 charge/discharge cycles

Operating Temperature

-20°C to +60°C

Storage Temperature

-20°C to +45°C (for best performance)

Applications

Flashlights, medical devices (e.g., hearing aids), cameras, and other compact electronic devices.

Connector Type

Flat top (unprotected), some versions come with protection circuit (protected)

 

 

What Are the Other Names of the 14250 Battery?

The 14250 battery has had so many names that include: CR14250. the non-rechargeable lithium version of this battery and the rechargeable version called LIR14250. Some of the manufacturers can also label it with the name DL14250. such as Duracell. Other listings can also substitute AA 14250. an incomparably equal battery, with the same size battery.

 

What is the Equivalent of a 14250 Battery?

 

14500 Battery

The battery 14500 is actually perceived to be a good competitor to the battery 14250. since they both are lithium-ion based batteries with a similar voltage of 3.7V. Although the 14500 is a bit longer (50mm compared to 45mm), it can be used in cases where that length will fit, and it may thus be used as an alternative in most instances.

 

AA Lithium-Ion Battery

It may also be used as an alternative to a 14250 in some applications that are based on the AA lithium-ion battery. Even though AA batteries are longer and bigger, they can potentially be used in equipment that needs extra run time, provided such equipment has the room to house the increased size (e.g., 1200mAh to 1500mAh) because they can possibly have a higher capacity.

 

CR123A Battery

CR123A It is a non-rechargeable lithium, and it offers a much more similar voltage (3 V) to the 14250. It is a bit shorter, but can be applied in certain low-power applications, where voltage tolerance is not of utmost importance, but not all devices may perform with the same discharge characteristics.

 

LIR14500 Battery

LIR14500 is a rechargeable variant of the 14500 battery and thus a good alternative to the battery as long as the user needs a rechargeable variant of the battery that can fit the device. Although it shares equivalent form factor and voltage with the 14500. users need to take care that the device is capable of using rechargeable batteries.

 

CR14250 Battery

CR14250 is a non-rechargeable lithium battery that is almost the same size, voltage and chemistry as the 14250. It is normally employed in the same uses and can even be used as a direct replacement of the 14250. and is a very close substitute.

 

14250 Battery

 

What Is a 14250 Battery Used For?

 

High-Performance Flashlights

The 14250 battery is commonly found in high-performance flashlights since it is smaller but of high voltage (3.7V). Flashlights that need high intensity of stable lighting over a long time use the 14250 to provide dependable power without the size of bigger battery models.

 

Medical Devices

Examples of medical products that use the 14250 battery include hearing aids and blood glucose monitors. Its rechargeable feature and capacity of maintaining a constant charge even during extended durations render it ideal for devices requiring dependable and lengthy power, particularly in smaller sizes, since larger batteries would not be feasible.

 

Security Systems

The 14250 battery is widely used as a security system and remote sensors because it is not large and it produces power efficiently. These systems also need long-lasting batteries that can be used even when there is no activity, and the stable voltage of the 14250 makes it a good choice to be used in running gadgets such as motion detectors, cameras, and alarm clocks.

 

Cameras

The 14250 battery is used in small cameras, especially in digital and security cameras. Being small in size, it can be used in compact camera designs whilst being powerful enough to reliably work in devices that need to be used often, like action cameras or surveillance devices.

 

How Does the 14250 Battery Compare to Other Lithium Batteries?

 

14250 vs 14500 Battery

The two lithium-ion cells are the 14250 and the 14500; however, the difference between the two batteries is that all the batteries differ in size and the way they are used. The 14250 is smaller and the 14500 a little larger, with 14mm and 50mm diameter and height, respectively. Both are also compatible as the nominal voltage of the two batteries is 3.7 V and hence can both be employed in one such appliance use like flashlights, medical devices and cameras. The 14500 is, however, higher in capacity (with typical values of between 800mAh to 1000mAh) than the 14250. which had an average capacity of between 600mAh and 700mAh. The sole distinction exists in the fact that the 14500 is expected to be available in a wider range of devices capable of having quite comparatively larger batteries, as opposed to the 14250. which fits better the small devices with limited space.

 

14250 vs AA Lithium Battery

When comparing the 14250 battery to the more widespread AA lithium battery, it is feasible to come up with certain significant conclusions. The reason why the 14250 is much smaller is that it is the normal size of 14mm in diameter and 50mm in length, compared to the standard size of the AA lithium battery, 14.5mm round by 50.5mm long. Both batteries must be nominally 3.7V (although some AA lithium batteries will also have slightly lower voltage, but again, this will depend on the model). The 14250 is, however, typically very tiny as compared to the AA lithium battery that can store up to 1200mA to 1500mA. This increased power allows AA batteries to take longer before they can exhaust all their power to power a device in need of replacement or recharge. Although both batteries have the same application, such as flashlights, cameras and medical equipment, the AA lithium battery is favored in the devices that have space to fit the larger size and necessitate more power. The 14250 is used, on the other hand, in compact devices where space is a key factor, and the benefit of having a smaller form factor with similar voltage at a reduced capacity is available.

 

Comparison of Lithium Batteries 14250, 14500, and AA

Feature

14250 Battery

14500 Battery

AA Lithium Battery

Size (Diameter)

14mm

14mm

14.5mm

Size (Length)

50mm

50mm

50.5mm

Nominal Voltage

3.7V

3.7V

3.0V - 3.7V

Capacity

600mAh - 700mAh

800mAh - 1000mAh

1200mAh - 1500mAh

Common Applications

Flashlights, medical devices, cameras

Flashlights, medical devices, cameras

Flashlights, cameras, remote controls

Rechargeable

Yes

Yes

Yes (for lithium AA)

Size Compatibility

Ideal for compact devices

Suitable for slightly larger devices

Suitable for larger devices

Discharge Rate

Moderate

Moderate to High

Moderate to High

 

Conclusion

The 14250 battery is a universal, small-sized power pack that is applicable in many applications, from high-performance flashlights to medical equipment. Another feature that the 14250 has is a long life cycle. This can be attributed to the rechargeable lithium-ion chemistry that the product can only supply credible power with a small form factor, which can be used by the space-constrained device. Even though the 14250 is smaller than other standard lithium batteries of higher voltage, such as the 14500 or AA lithium, when size and weight are of serious concern, the voltage delivery is not affected.

 

FAQ

What is the voltage of a battery 14250?

The 14250 has a nominal voltage of 3.7V, typical of 3.7V lithium-ion batteries of small appliances.

What devices use the 14250 battery?

The 14250 is also used in the very high-speed flashlights, in medical devices including hearing aids, cameras and other small electronic appliances that require a moderate fixed supply of power.

 

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