Hello readers welcome to the new post. In this post, we will discuss Key Knowledge of AAA Battery Voltage, Capacity, Size, and dimensions. The AAA battery is a battery size that is 2nd commonly used, and part of low-drain compact electronic devices. It is the main part of small-size devices tha use less power. It is also durable and power-efficient. 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.
It’s 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 are 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 a 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 about 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 be stored. 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
Size and capacity
The basic difference is their size and capacity. AA battery is larger than AAA battery 50.5 mm long and 14.5 mm in diameter.
While AAA battery dimensions are 44.5 mm long and 10.5 mm in diameter. The capacity of AA batteries is higher than the capacity of AAA batteries. The voltage of AA is 1.5 Volts and 2000 mAh capacity, and AAA batteries have 1.5 Volts and 800 mAh capacity.
Cost
The AA battery is high costly the AAA battery since larger in size and has a higher capacity.
Durability
AA battery is more durable than an AAA battery since a larger size provides high capacity and longer life. AAA battery prong to leakage and damage due to smaller size and low capacity.
Applications
AA battery is used for high-power applications like digital cameras and remote controls. AAA battery is used in low-power applications such as calculators and watches.
How Can You Tell That A AAA Battery Is Good
Power
The standard voltage is about 1.5 volts for different sizes of AAA batteries. But this voltage value can be affected by use. Such different uses for TV remotes and car remotes
Shelf Life
The shelf life of the device explains how long it will last. So the shelf life of an AAA battery is about ten years or higher.
Chargeability
AAA battery is not disposable battery so they are rechargeable, which means we can charge them when they are release charging.
AAA Battery Dimensions, Features, and Specifications
Dimensions:
- The dimensions of AAA battery are 10.5 mm (0.41 in) in diameter and 44.5 mm (1.75 in) in length, with the positive terminal button, which is a minimum 0.8 mm (0.031 in).
Capacity:
| 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 |
Weight:
alkaline AAA batteries weigh is 11.5 grams (0.41 oz), and primary lithium AAA batteries weigh is 7.6 g (0.27 oz).
Types:
| AAA Battery Type | Voltage(V) | Capacity(mAh) |
|---|---|---|
| Nickel oxyhydroxide | 1.7 | 300-600 |
| Lithium Iron Disulfide | 1.5 | 1100-1300 |
| Nickel Cadmium | 1.2 | 300-500 |
| Nickel Metal Hydride | 1.2 | 600-1300 |
Equivalents:
LR03, R03, FR03, HR03, KR03, ZR03, 24A, 24D, 24LF, MN2400, MX2400, MV2400, Type 286, U16, HP16, UM 4
AAA Batteries vs. 18650 Batteries vs 2x CR123A Batteries
18650 Batteries
The dimensions of the 18650 battery are (D x H) 18 × 65 mm (0.70866 x 2.5590 inches), and nominal voltage and capacity based on battery chemistry and the type and voltage can be 3.2 and 3.7 volts and generally between 3000-6000 mAh (3-6 Ah).
CR123A Batteries
Its dimensional e (D x H) 17 x 34.5 mm, and nominal voltage is 3.0V and its nominal capacity is 1500 mAh (~1.5 Ah).
CR123A is non recharable battery having a shelf life of 10+ years.
It is also used due to a strong current after long time of not use.
Some brands make rechargeable CR123A batteries, with label RCR123A, and a nominal voltage of 3.2 and 3.7 volts and a capacity of 500-800 mAh.
- 18650 battery: 18 x 65 mm,
- CR123A battery: 17 x 34.5 mm,
- AAA battery: 10.5 x 44.5 mm.
- 18650 battery: 18 x 65 mm,
- 2x CR123A batteries: 17 x 69 mm,
- 3x AAA batteries: ~22 x 44.5 mm.
How Long Do AAA Batteries Last
The working life of the AAA battery is based on chemistry and storage conditions. Normally properly stored batteries for different types of AAA work for
- Zinc Carbon: 2-3 years, some can work for 4 years,
- Alkaline: 3-5 years, some are 10+ years,
- Lithium Ion: 3-5 years.
- Lithium Iron Disulfide: 20+ years,
- NiCd: 2-5 years,
- NiMH: 3-5 years,
What Are AAA Batteries Used For?
- Digital Thermometer
- Calculator
- Laser Pen
- Flashlight
- Medical Devices and Instruments
- Memory Backup
- Security System Panel
- Electronic Toys
- Smoke Detectors
- Battery Pack Application
12 voltage in a AAA battery pack vs 12v 18650 battery pack
18650 battery pack comes with 18650 lithium-ion battery cells having a voltage of 3.2-3.7v. The connection of 4 18650 battery cells in series helps the voltage of the battery pack of 12v lithium ion battery.
The 12-volt 18650 battery comes with a nominal voltage of 12.8 volts.
As compared to a 12V 18650 battery to a 12V AAA battery, the 18650 is practical as it has 4 battery cells for providing 12.8 volts, but a AAA battery uses 8.
The 12V 18650 batteries come with high power efficiency, longer durability, and a longer cycle life of about 4000 times making it a best to use
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FAQs
What is the voltage of an aaa battery?
an alkaline battery, AA or AAA, comes with a nominal voltage of 1.5V, and LiPo battery voltage is around 3.7V.
Are AAA batteries 1.2 or 1.5 volts?
Based on size and chemistry of battery voltage can be 1.5V for common alkaline batteries like AA, AAA cells, 3V for small lithium coins or 9V for 9V batterie
What is the capacity of an AAA battery?
| AAA Alkaline battery | AAA Lithium battery | |
|---|---|---|
| Capacity | 850-1,200 mAh | 1,200 mAh |
- What is the capacity of a 1.5 V AAA battery?
1250mAh per AAA cell
- Do all AAA batteries have the same voltage?
The voltage in an AAA battery is 1.2 volts or 1.5 volts based on the type of battery material. It is the same like AA batteries, which are as common as AAA batteries, with a voltage of 1.2v or 1.5v.
- What is AAAA battery but smaller?
An A23 battery is cylindrical in shape and shorter than a AAA battery, with dimensions of 28.5 mm long and 10.3 mm in diameter, with a weight of 8 grams. An A23 battery is an 8-cell device with a nominal voltage of 12 V.
- How do you measure AAA battery capacity?
Connect the black pin of the multimeter with the negative end of the battery and the red probe with the positive end of the battery. Check the voltage reading of the meter display. If the voltage is close to the rated voltage of the battery, then the battery works well. Such as new AAA battery should read around 1.5V.
- Are AAA batteries 1.2 or 1.5 V?
Based on size and chemistry of the battery, voltage can be different,1.5V for common alkaline batteries like AA, AAA cells, 3V for small lithium coins or 9V for 9V batteries.
- Why are 1.5 V batteries different sizes?
The larger battery has a larger capacity for enegy storage, So both small and larger batteries are rated for 1.5 volts, larger battery stores more energy and has longer battery life.
- What is a 1.2 V battery used for?
It is used for smaller household electronics like electric shavers, remote controls,
- Can we use a 1.2 V battery instead of 1.5 V?
Devices made to operate at 1.5 volts per cell can have less performance when using 1.2-volt NiMH batteries. It can be defined as dimmer lights in flashlights, slower motor speeds in toys or shorter runtime in electronic devices
