Custom 14500 Lithium Battery Manufacturer in China
A 14500 lithium battery is the same size as an AA battery. However, the voltage of a 14500 lithium battery is 3.7V, which is higher than that of an ordinary AA battery, and the power output is also larger. Those 14500 lithium batteries are available with various capacities from 600mAh to 1200mAh. They can be used with most devices that support AA batteries, such as media players, electronic dictionaries, remote beam controllers, and much more. These batteries are rechargeable, which provides a longer running time per charge to devices.
VTCBATT provides 14500 lithium-ion batteries, 14500 lithium iron phosphate batteries, and 14500 lithium manganese oxide batteries for you to choose from. We can also customize the capacity and battery pack based on your requirements. Please contact us to get your inquiry today!
14500 Lithium Battery Model
Industrial Melody of 14500 Cells Automatic Production
Thanks to modern smart manufacturing, 14500 cells are transferred by conveyor belts from one process to another, moving to an industrial rhythm. All processes are handled automatically by machines, minimizing labor costs and human error. Every cell undergoes 100% testing on a comprehensive testing machine, with test data automatically stored for 5 years to enable traceability.
14500 Lithium Battery Test Report
This 14500 Li-ion rechargeable battery is a compact 3.7V, 750mAh cell designed for portable electronics, smart devices, backup power modules, medical accessories, flashlights, and customized industrial applications where stable voltage, small size, and dependable cycle life are required. Features: it offers a balanced combination of energy density, low internal resistance of up to 80mOhm, and cycle life over 300 cycles at 1C discharge. Electrical characteristics: nominal voltage is 3.7V, charge cut-off voltage is 4.2V, discharge cut-off voltage is 2.75V, with maximum constant charge and discharge current up to 2C. Physical parameters: diameter 14.1 plus or minus 0.2mm, height 48.7 plus or minus 0.5mm, and weight about 20.0 to 20.5g. Storage: recommended storage range is low-temperature, dry conditions, generally up to 45C, with proper protection against moisture and over-discharge. Attention: avoid short circuit, fire, impact, water exposure, reverse charging, and use only matched chargers and protection circuits. Test data: chart results show strong rate performance, with charge and discharge curves at 0.2C, 0.5C, and 1C, confirming stable platform behavior across different loads. Factory and service: backed by 20 years of experience, we support ready stock, low-MOQ customization, stable and safe battery solutions, application-specific tuning, and environment-based design. Our service philosophy is simple: promote wider battery application by delivering cells that truly match the device, usage scene, and safety expectations.
What are Our 14500 Lithium Batteries Used For
Lighting ToolsThe 14500 lithium battery has a small size, high energy density, stable discharge, and can support long-term battery life of lighting tools such as flashlights and emergency lights. Our 14500 lithium batteries can fit most lighting tools on the market and can be customized according to your products.
Portable Devices14500 lithium battery can replace the traditional AA alkaline and NiMH battery, providing higher voltage for digital cameras, portable audio, and other portable devices, supporting efficient use of flash and other designs, and providing longer running time.
RC Model Devices14500 lithium batteries can also be used for RC model cars, ships, or aircraft, etc. Small size and light weight are the biggest advantages of 14500 lithium-ion batteries in these applications, meeting the demand for lightweight, bringing them faster speed and longer battery life.
Emergency Kit14500 lithium batteries, especially the lithium iron phosphate battery, are suitable for emergency kits due to their low self-discharging rate, meaning that they have a long shelf life. The 14500 lithium batteries also have great thermal resistance(up to 85℃), making them your reliable backup power.
We compared it with AA batteries from the below image because 14500 lithium batteries look similar to them (14500 lithium batteries are a little longer). But it is substantially different in the following aspects:
Voltage: The rated voltage of a 14500 lithium battery is generally 3.6V or 3.7V, which is slightly over two times the 1.5V of AA batteries. This implies that the 14500 lithium battery can supply devices that need a large range of power.
Rechargeability: The 14500 lithium battery is rechargeable; the AA battery is not. Using a 14500 lithium battery can reduce the waste and is more environmentally friendly. That is the difference between primary batteries and secondary batteries.
Capacity: The capacity of 14500 lithium batteries is usually higher than AA batteries(600 mAh-1200 mAh). So that the 14500 lithium batteries can support a longer runtime for your devices than the AA batteries do.
Cost: It costs more to buy a 14500 lithium battery. However, 14500 lithium batteries are rechargeable, while AA batteries are not, which means you don’t have to pay for replacement of 14500 lithium batteries, lowering the long-term cost for your project.
Shelf Life: 14500 lithium batteries have a longer shelf life than normal alkaline AA batteries because of their lower self-discharge rate. Application: The above differences determine that 14500 lithium batteries are more suitable for high-drain devices and devices that need to be used for a long time. AA batteries are more suitable for low-energy household appliances or more general tools.
The differences between a 14500 lithium battery and a 18650 lithium battery mainly exist in three aspects: capacity, size, and discharge rate.
Capacity: The capacity of a 14500 lithium battery is generally from 600 mAh to 1200 mAh, while the capacity of a 18650 lithium battery is generally from 2000 mAh to 3500 mAh. Although there is a certain difference in capacity between 14500 lithium batteries and 18650 batteries, their energy density is similar.
Size: Both the 14500 lithium battery and the 18650 lithium battery are cylindrical batteries. The diameter of a 14500 lithium battery is about 14mm, and its length is about 50mm. The diameter of a 18650 lithium battery is about 18mm, and its length is about 65mm. Its overall volume is about 2.5 times that of a 14500 lithium battery. Different sizes make them compatible with different devices.Discharging Rate: The discharging rate is also known as “C-rate”, indicating how fast a battery can discharge all its power. The 18650 lithium battery supports a higher discharging rate(up to 10C) than the 14500 lithium battery(typically 0.5C-1.0C), which means the 14500 lithium battery is more suitable for applications that do not require a burst of power, such as flashlights, remote controllers, and other small portable devices.
The most important factor you need to consider is device compatibility. If your product is a calculator, remote control, or other small portable electronic product, you need to confirm that the product is compatible with the size of 14500 lithium batteries. Does your product require higher output power, performance, and longer battery life? At the same time, if your product has higher requirements for battery capacity, output power, and C-rating, and is larger in size, you may want to look at our 18650 lithium batteries.
The 14500 lithium battery is rechargeable. Although it is more expensive than an AA original battery, it saves you from having to replace batteries for your device frequently in the long run. It has a maximum of 1000 cycles before performance degradation, making it an eco-friendly and worry-free power source for your devices.
Use a smart charger for your 14500 lithium batteries. When choosing a charger, choose a voltage limit no greater than 4.2V, and avoid charging them for a long time. When using 14500 lithium batteries, set the discharge cut-off voltage to 3.0 to avoid complete discharge. We can also customize a 14500 lithium battery with increased internal resistance to reduce discharge efficiency, but this will sacrifice battery performance, so we generally do not recommend this.
Check device voltage compatibility. If your device is using a single AA battery, it means that your device’s operating voltage is between 1.2V and 1.5V. You must not use a 14500 lithium battery instead of an AA battery, because the 3.2V or 3.7V voltage is likely to burn your device. Only if your device uses 2 or more AA batteries in series (that is, your device supports at least twice the operating voltage) can you consider using 14500 lithium batteries with placeholders instead of AA batteries.
Check the physical compatibility. Some 14500 lithium batteries come with a protection plate that is slightly longer than the AA batteries you are using, making them a less-than-perfect replacement for AA batteries.
In addition, some devices also allow manual selection of the battery type. Typically, AA batteries are NiMH rather than Li-Ion. Therefore, once the wrong battery mode is selected, the device may select a lower shutdown voltage, causing battery over-discharge damage.
