1.2V NiMH (Nickel-Metal Hydride) batteries are rechargeable batteries commonly used in a variety of portable electronic devices. They are known for their high energy density and low environmental impact compared to other rechargeable battery technologies. Here's some more detailed information about 1.2V NiMH batteries:
Characteristics:

    Nominal Voltage: Each NiMH cell has a nominal voltage of 1.2 volts.
    Capacity: NiMH batteries come in various capacities, typically ranging from 500mAh to 3000mAh or more, depending on the size and intended use.
    Self-discharge Rate: NiMH batteries have a moderate self-discharge rate, losing about 1% to 3% of their charge per day when not in use.
    Charge Cycles: NiMH batteries can be recharged hundreds to thousands of times, depending on the quality of the battery and how it is used and maintained.
    Environmental Impact: NiMH batteries are considered more environmentally friendly than NiCd (Nickel-Cadmium) batteries because they do not contain toxic heavy metals like cadmium.

Common Sizes:

NiMH batteries are available in standard sizes, including:

    AA (LR6): Widely used in portable electronics, such as digital cameras and remote controls.
    AAA (LR03): Commonly used in smaller devices like wireless mouse and keyboards.
    C (LR14): Often found in medium-power devices like flashlights.
    D (LR20): Used in high-power devices such as large flashlights and toys.
    9V (6F22): Used in smoke detectors and other electronic devices that require a higher voltage.

Applications:

    Consumer Electronics: Digital cameras, remote controls, toys, and portable audio players.
    Portable Devices: Cordless phones, portable gaming consoles, and wireless keyboards/mice.
    Professional Tools: Power tools, flashlights, and emergency lighting.
    Hybrid Vehicles: Some older hybrid vehicles used NiMH batteries for their propulsion systems.

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