Hello readers welcome to the new post. In this post, we will discuss Key Knowledge of AAA Battery Voltage, Capacity, Size and dimensions. In a technology-driven world, batteries are important to power different devices from small size devices to larger projects. There are differnt batteries used AAA battery is commonly used due to their small size and differnt features. In this post, we will discuss different parameters to know about the AAA battery. So let’s get started with aaa battery voltage
Introduction to AAA Batteries
The AAA battery is a standard-size dry cell. In portable electronic devices, there are one or more AAA batteries exist. Zinc carbon battery with these dimensions is denoted as IEC as RO3. The AAA battery is a single cell that has a 10.5mm diameter and 44.4 mm length. It has a positive terminal of 0.8mm to 3.8mm in diameter.
Its flate negative terminal comes with a diameter of 4.3mm. Alkaline AAA batteriesweight is about 11.5 grams and primary lithium AAA batteries weight is about 7.6 grams.
The weight of a rechargeable nickel metal hydride AAA battery is 14–15 g (0.49–0.53 oz
Types of AAA Batteries
AAA batteries have two main: primary and secondary. Different chemistries follow for the construction of these batteries.
Primary AAA Battery
it is a non-rechargeable battery that is made for use one time and then discarded when discharged. These batteries is commonly employed in portable devices that need low current drain and used intermittently.
Primary cells come with high energy density as compared to rechargeable secondary cells, but some primary battery has high internal impedance and so casues high voltage losses as a result of high discharge current, and its power is limited.
Alkaline AAA battery
The alkaline battery is the primary battery tha has DC from the electrochemical reaction between zinc and manganese dioxide in the existence of an alkaline electrolyte.
The alkaline battery has a name due to the alkaline electrolyte of potassium hydroxide then acidic ammonium chloride or zinc chloride electrolyte of zinc carbon batteries.
The alkaline cell made in 1959 but until 1980 they were less common
Lithium metal battery
Lithium metal primary cells come with a metallic lithium anode. It has a lower self-discharge rate because its longest shelf life is about ten years and its temperature conditions are about 70 centigrade. The cathode of iron disulfide offers a battery with a nominal voltage of 1.5 volts.
Zinc-carbon battery.
The zinc-carbon battery also known as Leclanché cell, is a conventional general-purpose dry cell. Zinc carbon battery was used first time as a commercial battery made with wet Leclanché cell technology.
It offers a direct curent from the electrochemical reaction between zinc and MnO2 in the existence of electrolyte. It generated a voltage of about 1.5 volts between the zinc anode that is made with a cylindrical container of battery cell and carbon rod cover to cathode gather current from the manganese dioxide electrode. The name “zinc-carbon” is slightly misleading as it implies that carbon is acting as the reducing agent rather than the manganese dioxide.
Secondary AAA Battery
The secondary battery is also called a secondary cell or rechargeable battery. It can recharged with the use of an electric current in the reverse direction of the discharging current. The rechargeable battery is high cost, but in high drain uses they have high value since can be reused.
In low-drain uses service life is the main factor and the self-discharge features of rechargeable batteries are less good for use as primary energy source.
NiMH battery.
The nickel hydride battery, NiMH is a secondary battery that has a positive electrode created with the use of nickel hydroxide and a negative electrode created with metal hydride. The NiMH battery was commercially used in 1989 and used as a power supply in different devices like portable computers.
NiMH battery is also common for electric hybrid vehicles and ten percent rechargeable batteries are made with it. As compared to NiCd battery NiMH offers 40 percent high specific energy with double high capacity. It affected with memory effect.
NiCd battery.
The nickel-cadmium battery is a secondary battery that uses nickel oxide hydroxide cathode and metallic cadmium anode. The ni-CD is derived from nickel and cadmium. The battery comes with high inner impedance and offers high power features with lower energy storage featues then other batteries.
AAA Batteries Features
Cell Voltage
The voltage of the electrical battery is generated with the potential difference of materials that makes positive and negative electrodes in the electrochemical reaction. The alkaline battery comes with an open cell voltage of abut 1.5 volts. The common open circuit voltage for NiMH is 1.2 volts.
Cut-off Voltage
The minimum allowable voltage is called cut-off voltage. It is the voltage that explains the empty condition of the battery. if the test battery capacity of NiMH cut-off volts is 1.0 volts per cell for normal use and 0.9 volts is the cut-off voltage for the alkaline battery.
Capacity
The coulometric capacity is total amper hours that exist when the battery is discharged for a certain discharge current from a hundred percent SOC to cut off voltage. normal alkaline or NiMH battery AAA has 800 (NiMH) to 1100 mAh (alkaline).
C-rate of Battery
C rate is employed to define how fastly the battery is discharged or charged as compared to the highest capacity. It has units h−1. A 1C rate means that discharge current discharge battery in one hour. For getting good capacity manufacturers normally rate alkaline and lead acid batteries at low 0.05C or a 20-hour discharge.
Battery slowly self discharged if not attached in the circuit or providing current. It is due to non-current generating side chemical reactions that exist in the cell also if no load is connected. The main benefit of an alkaline battery is that it can easily store. it is chemically stable and has a low self-discharge rate. An alkaline battery loses two to three percent of charge per year if stored at room temperature. The NiMH battery has a high self-discharger and loses about 20 percent of charge during the first 24 hours and 10 percent in one month
Technical Features Of AAA Battery Alkaline
Alkaline AAA Battery Nominal Voltage | 1.50 Volts |
AAA Battery Capacity (Avg.)- Alkaline | ≈ 1200 mAh |
Operating Temperature | 0°C to 60°C |
Diameter | 14.5mm |
Height | 50.5mm |
Chemistry | Alkaline |
Technical Features Of The AAA Battery Lithium
Lithium AAA Battery Nominal Voltage | 1.50 Volts |
AAA Battery Capacity (Avg.)- Alkaline | ≈600mAh |
Operating Temperature | 0°C – 60°C |
Diameter | 14.5mm |
Height | 50.5mm |
Chemistry | Lithium |
Technical Features Of The AAA Battery Carbon Zinc
Carbon Zinc AAA Battery Nominal Voltage | 1.50 Volts |
AAA Battery Capacity (Avg.)- Alkaline | ≈600mAh |
Operating Temperature | 0°C – 60°C |
Diameter | 14.5mm |
Height | 50.5mm |
Chemistry | Carbon Zinc |
Differences Between AA And AAA Batteries
AA Batteries | AAA Batteries | |
---|---|---|
Size | Larger | Smaller |
Diameter | 14.5mm | 10.5mm |
Length | 50.5mm | Approximately 44.5mm |
Voltage | 1.5 volts | 1.5 volts |
Capacity | Higher 2000 to 3000mAh) | 800to 1200mAh) |
Runtime | Longer | Shorter |
Common Uses | High-drain devices | Low-drain devices such as remote controls) |
Availability | common available | Widely available |
Price | Usually slightly higher | Usually slightly lower |
Compatibility | devices needed AA batteries | Some devices require AAA batteries |
Examples of Devices | Digital cameras, flashlights | Remote controls, small toys |
How Can You Tell That A AAA Battery Is Good
- voltage. The voltage of the battery must be 1.5 volts. Multimeters can be used to measure volts
- drop test. When alkaline AAA batteries fail, they will bounce. it is not good to lose AAA battery on a hard surface if it bounces.
- Expiry date. Check the battery expiry date if it passes not use it
- condition of the battery. If the AAA battery is corroded or damaged, it is not good
AAA Battery Dimensions, Features, and Specifications
-
Dimensions:
- Length: 1.75 inches (44.5 mm)
- Diameter: 0.41 inches (10.5 mm)
- Positive terminal: button
Nominal voltage: 1.5 volts
Capacity:
- Alkaline: 1200 mAh
- Lithium: 750 mAh
- NiMH: 1500 mAh
Operating temperature: -20°C to 60°C
Weight:
- Alkaline: 11.5 grams (0.41 oz)
- Lithium: 7.6 grams (0.27 oz)
- NiMH: 14-15 grams (0.49-0.53 oz)
Types:
- Alkaline
- Lithium
- Nickel metal hydride (NiMH)
Equivalents:
- LR03
- R03
- FR03
- 24A
- 24D
- HR03
- KR03
- ZR03
- 24LF
- MV2400
- MN2400
- MX2400
- Type 286
- U16
- HP16
- UM 4
AAA Batteries vs. 18650 Batteries vs 2x CR123A Batteries
Feature | 18650 Battery | 2x CR123A Batteries | 3x AAA Batteries |
---|---|---|---|
Physical dimensions (D x H) | 18 x 65 mm | 17 x 69 mm | 22 x 44.5 mm |
Nominal voltage | 3.2-3.7 V | 6.0 V | 4.5 V |
Nominal capacity | 3-6 Ah | 1.5 Ah | 0.85-1.3 Ah |
Stored energy | 9.6-22.2 Wh | 9 Wh | 3.8-5.9 Wh |
Rechargeable | Yes | No (non-rechargeable) | Yes |
Shelf life | 3-6 months | 10+ years | 10+ years |
How Long Do AAA Batteries Last
- Type of battery: Alkaline AAA battery operating life is one to two years lithium AAA battery operating life is about three to five years. NiMH AAA batteries can work for 10 years if they are accurately stored.
- Device: Deice tath using battery also has effects on its operating life. Such as digital cameras use a battery faster than remote control
- Usage: Battery battery-using process also affects its operating life. Such as if the battery is drained and recharged its operating life is less than a battery that certainly used
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FAQs
What is the voltage of an aaa battery?
The 1.5 volts is the AAA battery voltage. However, there are also 1.2-volt AAA batteries used where devices need less power.
How many volts is an aaa battery?
The Alkaline AAA battery is 1.5 volts and the LiPo battery is 3.7V.
What is the voltage capacity of an AAA battery?
A digital multimeter or a battery tester are two tools that are used to determine a AAA battery’s capacity.mAh. A 1.5-volt AAA battery with a 1000 mAh capacity has the features to provide 1000 mA of current for an hour.
- What is the capacity of a 1.5 V AAA battery?
the capacity of a 1.5 V AAA battery can be different on the base of type. NiMH AAA batteries generally have a capacity is 1000 to 1500 mAh, compared to an alkaline AAA battery’s normal range of 800 to 1200 mAh.
- Are all AAA batteries 1.5 V?
No, AAA batteries do not all have 1.5 V. Generally, these batteries are used in low-voltage electronics like digital cameras and some remote controllers.
- Are there two sizes of AAA batteries?
No, the AAA battery comes in just one size. Alkaline, NiMH, and lithium are types of AAA batteries. The voltage features and operation of these different battery types vary.
- How do you measure AAA battery capacity?
Connect the black probe of the multimeter with the negative point of the battery and the red with the positive end of the battery. Now check the volta in the meter display. If the voltage is close to the rated volts of the battery then it is good. Its volts must be about 1.5 volts
- Are AAA batteries 1.2 or 1.5 V?
AAA batteries can be 1.2 or 1.5 V. The main type of AAA battery is 1.5 V, but with that 1.2 V AAA batteries exist.
- Why are 1.5 V batteries different sizes?
The size of a 1.5 V battery is measured by the battery chemistry. Alkaline AAA batteries are larger in size than NiMH AAA batteries since they have a larger active material. This is why alkaline AAA batteries have a higher voltage capacity than NiMH AAA batteries.
- What is a 1.2 V battery used for?
1.2 V batteries are used in devices that need a low voltage, like digital cameras, and some remote controls. They are also used in high-drain devices, like flashlights as they have a lower self-discharge rate than alkaline batteries.
- Can we use a 1.2 V battery instead of 1.5 V?
Normally 1.2 V battery can be used instead of a 1.5 V battery. A device may not work well since 1.2 V battery will store less power than the 1.5 V battery.