Why is the AA rechargeable battery 1.2V, while the regular battery is 1.5V?

Introduction Why is the AA rechargeable battery 1.2V, while the regular battery is 1.5V? It is determined by the positive and negative electromotive forces caused by the materials and substances contained in the battery. Ordinary electricity

Why is the AA rechargeable battery 1.2V, while the regular battery is 1.5V?

It is determined by the electromotive force of the positive and negative electrodes caused by the materials and substance contained in the battery.

Ordinary batteries are zinc-manganese batteries and the voltage of each battery is 1.5 V. The starting voltage of a zinc-manganese battery varies depending on the type of MnO2 used, the composition of the electrolyte and the pH value. It is generally between 1.55 and 1.75 V, and the rated voltage is 1.5 V.

AA batteries include: rechargeable nickel metal hydride batteries, rechargeable nickel batteries -cadmium, etc. The positive active material of nickel-hydrogen battery is Ni(OH)2 (called NiO electrode), the negative active material is metal hydride, and the standard electromotive force of the battery is 1.319V. The discharge voltage of batteries nickel-cadmium varies depending on the discharge device. Each unit cell (Cell) is approximately1.2 V.

Detailed information:

Normal charging

Different batteries have their own characteristics and users should charge according to the manufacturer's instructions. In sleep mode, the phone also consumes battery. If you want to charge quickly, you must first turn off the phone or remove the battery to charge it.

Fast charging

Some automated smart fast chargers only indicate that the battery is 90% full when the signal light changes, and the charger automatically switches to slow charging to fully charge the battery full. It is best for users to fully charge the battery before use, otherwise the use time will be shortened.

Memory effect

If the battery is a nickel-cadmium battery, if it is not fully chargedand discharged for a long time, it will leave traces in the battery and reduce battery life. ability. This phenomenon is called battery memory effect.

Clear memory

The method involves completely discharging the battery and then recharging it. For discharge, you can use a charger or charger with a discharge function, or you can use the sleep mode of the mobile phone. If you want to speed up the discharge, you can turn on the lights on the phone's display screen and buttons. To ensure that the battery can be recharged, follow the instructions in the instruction manual to check the time and repeat charging and discharging two to three times.

Battery storage

Lithium batteries can be stored in a clean, dry, ventilated room with an ambient temperature of -5°C to 35°C and relative humidity not not exceeding 75%. They should be avoided. In contact withec corrosive substances, keep away from fire and heat sources. The battery power remains between 30 and 50% of its nominal capacity. It is recommended to recharge stored batteries every 6 months.

Baidu Encyclopedia-Rechargeable Battery

Baidu Encyclopedia-AA Battery

What type of AA rechargeable lithium battery is it? Easy to use

1. The difference between lithium batteries and nickel-metal hydride batteries:

1. nickel-metal hydride batteries. Therefore, its talk time and standby time are longer than that of nickel-metal hydride batteries, and its price is also higher than that of nickel-metal hydride batteries.The battery is higher. In addition, under normal circumstances, nickel-metal hydride batteries cannot be charged at any time, which greatly reduces their convenience.

2. Specific energyic to the volume of lithium batteries is high. The working voltage of the lithium-ion battery is 3.7V, and its volume specific energy is higher than that of nickel metal hydride. Currently, lithium-ion batteries are available in aluminum shells, steel shells and flexible packaging. occupy the market in their respective fields.

3. Operating voltage standards are different. The working voltage of disposable batteries and nickel-metal hydride batteries is 1.2-1.5V, and the two connected in series are 2.4V-3.0V. Most electrical appliances have already established this operating voltage standard. Such as a portable music player, radio, etc.

2. Similarities between lithium batteries and nickel-metal hydride batteries:

Both can provide power easily and say goodbye to constraints, some are common in the market, such as lithium from cell phones; batteries.

Detailed information:

1. Advantages and disadvantages of lithium batteries:

1. Advantages: No memory effect, light weight.

2. Disadvantages: high cost, low current, and intolerance to overload (compared to nickel metal hydride).

2. Advantages and disadvantages of nickel-metal hydride batteries:

Advantages: low price, strong versatility, high current, environmentally friendly and stable.

2. Disadvantages: high weight, short battery life.

There are currently three types of ordinary rechargeable batteries:

1. Nickel-chromium battery

2.

3. Lithium battery.

Nickel-chromium batteries are an early product and there are currently relatively few on the market. It is characterized by a small capacity. When using it, it must be fully charged before running outof energy. And discharge the battery frequently (on the charger). If you charge before exhausting the energy, the remaining electricity in the battery will not be discharged later. In actual use, the battery capacity decreases relatively quickly (short usage time). This is the biggest disadvantage of nickel-chromium batteries: the so-called memory effect.

Nickel-metal hydride batteries are rechargeable batteries that appeared after nickel-chromium batteries. It is said that there is no memory effect. But in actual use, I feel that there is also some memory effect, but it is weaker than that of nickel-chrome batteries. The performance is that after the battery has been used for a while, the capacity decreases. There aren't many nickel-chromium batteries on the market right now.

Lithium batteries have the best performance among the three types of batteries, but they are equalslightly more expensive. It has no memory effect and the battery capacity is relatively low. Currently, the mobile phone batteries on the market are mainly lithium batteries.

  • Popular Focus
  • Where is the cheapest battery wholesale?

    Where is the cheapest battery wholesale in Tangxia, Sanyuanli, Baiyun District? There is an enterprise specializing in the independent production of electric vehicles in Tangxia, Sanyuanli, Baiyun District, Baiyun Sanyuanli Avenue, Baiyun Sanyuanli Street
    08-02
  • Four 3.7V lithium batteries in series and parallel produce 7.4V/4.4A. How to reduce it to 4.8V/4.4A?

    Four 3.7V lithium batteries in series and parallel produce 7.4V/4.4A. I personally think it is impossible to reduce it to 4.8V/4.4A. Because the discharge platform of lithium batteries is generally set
    08-10
  • What are the materials of the negative electrodes of lithium batteries?

    What are the materials of the negative electrodes of lithium batteries? The main commercial applications of lithium batteries include graphite, which is a sheet of copper used to guide current and which does not react. another safe
    08-02
  • The difference between 18500 and 26500 batteries

    What is the difference between 18500 and 26500 batteries? The answer above is 18650. The person asking the question should ask what is the difference between 18505 and 26500 batteries. In the case of Fuant ER1
    08-02
  • What does 3.7V 80mAh written on a lithium battery mean?

    What does 3.7V 80mAh written on a lithium battery mean? 3.7 V, 80 mA = 0.08 A, H means 1 hour, or 3600 seconds. Taken together, it is
    08-02
  • How long does a lithium battery (cell phone battery) last?

    How long does a lithium battery (cell phone battery) last? The lifespan of mobile phone batteries, under normal conditions of use and without serious impact, the lifespan set by the manufacturer must be 5 years.
    08-02
  • Will lithium batteries explode when charging?

    Will lithium batteries explode when charged? Will lithium batteries explode when charged? Lithium battery explosions usually occur during the charging process, because the negative electrode material of lithium batteries is graphite or other carbon materi
    08-02
  • Parameters of lgdas31865 lithium battery

    Parameters of lgdas31865 lithium battery The parameters of lgdas31865 lithium battery are as follows: LGDAS31865 is a model 18650 lithium battery with a capacity of
    08-02
  • What are the main components of lithium battery electrolyte?

    What are the main components of lithium battery electrolyte? The composition of lithium battery electrolyte is shown below. 1. Ethylene carbonate: molecular formula C3H4O3. Colorless transparent liquid (>35℃), room temperature
    08-02
  • Who are the lithium battery manufacturers in Shandong?

    What are the lithium battery manufacturers in Shandong? Shandong Shengyang Power Supply Co., Ltd. and Shandong Weineng Environmental Protection Power Technology Co., Ltd. 1. Shandong Shengyang Power Supply Co., Ltd. is located in Shengyang, Qufu City.
    08-02
  • Types of drone batteries available in 2024

    Part 1. Types of drone batteries available in 2024In 2024, drone batteries have advanced significantly, offering a range of options to cater to various needs in
    07-30
  • How long does it take to charge 26650 battery?

    How long does it take to charge a 26650 battery? The charging time for a 26650 battery is generally between 3 and 6 hours, but the precise time depends on the power of the charger and the capacity of the battery. in general
    08-02
  • For what?Sure, here's an article based on the phrase "For what?

    The simple yet profound question, "For what?" often serves as a gateway to deeper reflections on purpose and intention. It is a query that invites us to delve into the reasons behind actions, decisions, and circumstances that shape our lives and the wor
    08-02
  • Choosing the Right Cart Battery

    This comprehensive guide will walk you through everything you need about cart batteries, from understanding different types to making an informed purchase decision.
    08-02
  • 30mAh~500mAh 3.7 V Li-ion Battery

    Welcome to Ufine's collection of 3.7V lithium-ion batteries ranging from 30mAh to 500mAh. Explore a diverse range of compact and lightweight batteries suitable for various electronic devices,
    08-02
  • Here are 10 essential facts about drone batteries for 2024.

    10 Key Facts About Drone Battery for 2024 In 2024, drone batteries have advanced significantly, offering a range of options to cater to various needs in the consumer, commercial, and industrial sectors. Below are the primary types of drone batteries avai
    08-02
  • Could you please explain the difference among IMR, ICR, INR, and IFR 18650 batteries?

    What is the Difference Between IMR, ICR, INR, and IFR 18650 Battery?In 18650 batteries, discerning the differences among IMR, ICR, INR, and IFR types is fundamental for tailored and efficient battery usage. These distinct
    08-02
  • Safety considerations for cart batteries

    Selecting the ideal cart battery is crucial for ensuring optimal performance and longevity of your electric vehicle or vaping device. This comprehensive guide w
    08-01