The 14500 battery is a rechargeable lithium battery, but its size and shape look like an AA battery. The 14500 battery is a 3.7-volt battery. It is a small-sized and low-weight battery, and the lithium-ion 14500 battery comes with options to use for portable devices like flashlights, torches, and other small electronic devices. In this post, we cover different features of the 14500 battery and its practical uses, and make its comparison with other types of batteries. So let’s get started with the introduction to the 14500 battery.
What is a 14500 lithium rechargeable battery?
- The 14500 battery is a cylinder-shaped lithium-ion battery that comes in the same size as the AA battery.
- It is a small supply battery that comes with high voltage and capacity to provide more energy and work longer.
- The main feature of the 4500 battery is that it is rechargeable, and it can be used many times, making it a cost-effective and environmentally friendly option.
Structure of 14500 Battery
- The 14500 battery uses lithium-ion technology.
Anode:
- The anode of the battery is made of graphite, and here lithium ions are stored at the time of charging.
Cathode:
- The cathode is made with the use of lithium oxide, lithium manganese oxide, and other types of chemistries.
Electrolyte:
- Electrolyte used for the movement of lithium ions from the anode to the cathode
Features of 14500 Li-ion batteries
The main features for the 14500 rechargeable battery are as follows.
Size:
- The dimensions for the battery are 14 mm x 50 mm, which are the same as a standard AA battery.
Nominal Voltage:
- The nominal voltage value for the battery is 3.7 volts.
Charging Voltage:
- The charging voltage for the battery is 4.2V.
Cut-off Voltage:
- The cut-off voltage for the battery is 2.5 to 3 volts; if the battery discharge is below this range, it can affect the battery.
Discharge Voltage:
- The discharge voltage for the battery is 3.6V–3.7V during use.
Chemistry:
- The chemistry used for batteries is lithium manganese oxide (LMO), lithium cobalt oxide (LCO), and lithium iron phosphate (LFP).
Capacity:
- The capacity range for the battery is 600 mAh to 1200 mAh.
Cycle Life:
- The battery working cycle is 300–500 charge cycles, based on use and quality.
Protection Circuit:
- Some batteries have built-in circuits for avoiding over-discharging and overheating.
14500 battery types
3.7V 14500 Li-Ion battery
- The 3.7V 14500 Li-Ion battery is best used for different applications. This battery comes with energy density so it can store high power in small packages.
- It comes with a longer cycle life so it can be recharged many times before reducing capacity. So it is used for different applications.
Flashlights:
- In long-lasting illumination, this battery is used to provide high voltage and capacity.
Cameras:
- The battery provides power for high-drain operations like continuous shooting and flash.
14500 LiFePO4 battery
- 14500 LiFePO4 battery is used since it has safety and stability features. It comes with a nominal voltage of 3.2 volts, which is less than a Li-ion battery.
- These batteries are resistant to overheating and thermal runaway and are best used for high-temperature conditions. They also provide a longer working life than Li-Ion batteries.
- The common uses of batteries are.
Emergency Lighting:
- The stable nature of the battery helps to use emergency lights that make reliable options for different conditions.
Solar Power Systems:
- It is also used for solar power applications where longer life and safety are important.
Electric Vehicles:
- Electric vehicles such as e-bikes and scooters use batteries for stable performance and longer life.
14500 battery vs AA battery
Dimension
- The dimensions for the 14500 lithium battery are like those of an AA alkaline battery. The AA battery dimensions are 14mm x 50mm, like the 14500 battery.
Chemistry
- The 14500 battery is a rechargeable lithium-ion battery. AA batteries have alkaline chemistry, nickel-cadmium batteries, and lithium-ion batteries.
Voltage
- The voltage value for the 14500 battery is 3.7 volts, and the AA battery has 1.5 volts.
Capacity
- The capacity for 14500 batteries is 500 to 800 mAH, the capacity for AA lithium-ion batteries is 1700 to 2700 mAH, and the alkaline AA battery capacity is 600 to 2700 mAh.
Performance
- The 14500 battery has a high capacity and stores more energy. It is used for a long time when completely charged. AA batteries come with low capacity, are non-rechargeable, and are used many times.
Lifespan
- An AA alkaline battery is non-rechargeable and disposable. The 14500 battery can be charged about 800-1000 times.
Is a 14500 battery like an AA battery?
- The 14500 and AA batteries are the same but have different volts since they have different chemistries. Normally, AA batteries have alkaline, lithium, or zinc chloride chemistry. with a nominal voltage of 1.5 volts, and a rechargeable AA cell has NiMH or NiCd chemistry with a nominal voltage of 1.2 volts.
- The 14500 battery has lithium chemistry, and the voltage value is 3.6/3.7V, with recharging features. Since they have high voltage, they are not used as replacements for AA batteries.
Can the 14500 battery charger be used for AA batteries?
- No, it is not good to do, since the 14500 battery has a different voltage than the AA battery. AA battery voltage is 1.5 volts, and the 14500 lithium-ion battery has a voltage of 3.7 volts. The use of an incorrect charger causes reduced battery working life and damage through overheating. The best option is to use the same charger for the 14500 battery.
AA vs. 18650 vs. 14500 lithium battery
Size:
- AA and 14500 batteries both come with the same size, and the 18650 battery is a larger size. That has affected their compatibility with different devices.
Voltage:
- • An AA battery is low voltage and used for low-drain devices. The 14500 and 18650 are high-voltage batteries and are part of high-drain applications.
Capacity:
- • The 18650 battery comes with high capacity and retains a longer charge. The 14500 battery has a good size and capacity range.
Rechargeability:
- AA batteries are rechargeable for some types, and 14500 and 18650 batteries are all rechargeable, which is a low-cost option.
Energy Density:
- The 18650 battery comes with high density and also a 14500 battery. AA battery is a low-density option.
Uses:
- • An AA battery is a low-drain device that is part of remote controls and toys. The 18650 battery is used for high-drain applications such as laptops and high-power flashlights.
Safety:
- LiFePO4 14500 batteries are safe to use, and Li-Ion 18650 batteries need proper handling to control overheating.
How long does a 14500 lithium battery last?
- The working life of a 14500 lithium battery is based on different factors such as type, a device where it is used, and maintenance. Normally, 14500 lithium batteries work for 300 to 500 charge cycles.
Some factors that affect battery working life are
Uses:
- High-drain devices deplete batteries quickly and affect the charge cycles of batteries.
Storage:
- If a battery is stored in high-temperature conditions, it affects the battery’s working life and needs to be stored at dry and cool locations for increased working life.
Charging:
- The use of an accurate charger made for the 14500 battery maintains health, and overcharging or use of a low-quality charger affects the battery.
14500 battery vs. 18650 battery
Dimensions
- The dimensions for the 14500 lithium-ion battery are 14mm, and the height is 50mm. The 18650 lithium-ion battery dimensions are 18 mm in diameter and 65 mm in height.
Voltage
- The voltage range for a 14500 lithium-ion battery is 3.2 to 3.7 volts, and the 18650 lithium-ion battery voltage range is 3.2- 3.7V.
Capacity
- The 14500 lithium-ion battery capacity is 600mAh to 1000mA,h which is less than the 18650 Li-ion battery. The 18650 lithium-ion battery comes with a capacity range of 1,500 mAh to 3,600 mAh.
Battery life
- These two batteries are lithium-ion batteries, so the working life is the same.
| Battery Type | Dimensions (mm) | Nominal Voltage (V) | Capacity (mAh) |
|---|---|---|---|
| 18650 | 18 x 65 | ~3.7 | 1200 – >3500 |
| 14500 | 14 x 50 | ~3.7 | 600 – >1200 |
14500 vs 18650: which is better?
The use of a 14500 battery and an 18650 battery is based on applications. If you need a small-size rechargeable battery to power toys and cameras, then the best option to use is a 14500 Li-ion.
If a battery with a larger capacity and high energy density for powering larger devices is needed, then an 18650 battery is best to use.
What to consider before buying a 14500 battery
Power Demand
- The 18650 battery needed higher energy density than the 14500 battery. For high-power devices, use an 18650 battery.
Battery size
- The main factor for choosing a battery is size. Check your device’s battery compartment size and find the battery according to the dimensions.
capacity and voltage
- The capacity and voltage are also important factor before choosing a battery. Some devices come with a nominal voltage that they need, and your selected battery has features to fulfill the voltage demand of the devices.
- Battery capacity is also the main factor that helps to define how long it will work before recharging. The batteries with high capacity work longer, but they are larger in size.
Manufacturers
- The battery manufacturers are also important for the selection of batteries. The high-quality battery manufacturers provide reliable and long-lasting battery solutions.
What are the typical applications of 14500 batteries?
- The 14500 battery’s main uses are in small electronic devices like small flashlights, portable devices, and also devices where compactness and portability are important factors.
Are 18650 and 14500 batteries interchangeable?
- The 18650 and 14500 batteries have different sizes, so they are not interchangeable, and devices operating for one type of device do not use other batteries.
Can 14500 be replaced with any other batteries?
- Yes, we can use 2, 14500 batteries with one 14500 battery if the device battery compartment can handle the battery size. The voltage of two 14250 batteries is double compared to one 14500 battery, so ensure that the circuit can handle the replaced batteries to avoid any damage.
- Normally, a battery that has the same chemical material and voltage is replaced with a lithium-ion battery according to the size of the battery compartment and device compatibility, and a replacement is also
Can alkaline batteries be replaced with 14500?
- Lithium battery is not a replacement for alkaline batteries since different voltages. If the power and voltage value is reasonable for your device, use a 14500 lithium-ion battery rather than an AA alkaline battery. Some AA flashlights are compatible with 14500 batteries.
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