Member Blog Posts: battery

  • Supersonic Biplanes

    Supersonic Biplanes

    Posted Apr 03, 2012 By Joel Burns

    Check out the latest episode of “This Week in Engineering” as they describe how scientists at MIT have developed an alternative to the defunct…

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  • True Battery Capacity Tester Based on Arduino

    True Battery Capacity Tester Based on Arduino

    Posted Feb 08, 2012 By Circuit Projects

    The Arduino based capacity tester of true battery power is capable of measuring almost any type of rechargeable or non-rechargeable…

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  • Charger Device for NiCd and NiMH Battery Cells

    Charger Device for NiCd and NiMH Battery Cells

    Posted Feb 08, 2012 By Circuit Projects

    The project illustrates a constant current and automatic charge termination when the total voltage for all cells reach the setting voltage…

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  • Variable Voltage Output from 12V Battery Source

    Variable Voltage Output from 12V Battery Source

    Posted Feb 08, 2012 By Circuit Projects

    The circuit was designed to provide a variety of voltages to some electronic equipment with the use of a 12V battery as the power…

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  • Developing an Artificial Plate Battery

    Developing an Artificial Plate Battery

    Posted Feb 07, 2012 By Circuit Projects

    The project utilizes an MC34063 for the circuit to function as automatic controller as it creates an artificial plate battery which are…

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  • Inductor-Free Driving of Single/Two Cell White LED

    Inductor-Free Driving of Single/Two Cell White LED

    Posted Feb 06, 2012 By Circuit Projects

    The project allows a white LED or UV LED to be driven from one-cell or two-cell batteries without the use of inductors.

    Four transistors…

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  • Calibration Circuit for Lithium Polymer (LiPo) Battery

    Calibration Circuit for Lithium Polymer (LiPo) Battery

    Posted Feb 06, 2012 By Circuit Projects

    The circuit was built around the LM317 along with one resistor and one trimmer to construct a LiPo calibrator for balancing the element in…

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  • Battery-Powered Amplifier Known as Ruby

    Battery-Powered Amplifier Known as Ruby

    Posted Feb 03, 2012 By Circuit Projects

    The circuit has been enhanced from another version of battery-powered amplifier where an input buffer feeding the inverting input and the…

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  • Handheld Tesla Coil Plasma Gun Powered by Battery

    Handheld Tesla Coil Plasma Gun Powered by Battery

    Posted Feb 01, 2012 By Circuit Projects

    The goal of the project is to create a smaller and portable Plasma Gun device that will be based on the larger battery powered Tesla…

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  • AA Battery Charger via USB Connection

    AA Battery Charger via USB Connection

    Posted Jan 31, 2012 By Circuit Projects

    The project makes the USB port a convenient source of power for devices such as battery charger for a pair of AA Nickel Metal Hydride…

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  • Battery Pack For USB Devices

    Battery Pack For USB Devices

    Posted Jan 31, 2012 By Circuit Projects

    The project is designed to power a device via USB cable using two standard AA and some electronics to form a battery box.

    The use of this…

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  • NiCad Battery Discharger Known as COMBATT

    NiCad Battery Discharger Known as COMBATT

    Posted Jan 31, 2012 By Circuit Projects

    The device utilizes a large 50W resistor to be used for discharging NiCad battery pack.

    The discharging of NiCad is being controlled from…

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  • Battery Manager with Computer Control

    Battery Manager with Computer Control

    Posted Jan 31, 2012 By Circuit Projects

    The project is intended for typical rechargeable batteries used by R/C devices, various consumer product batteries, and electronics…

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  • Battery Discharger/Data Collector Known as Accugraph

    Battery Discharger/Data Collector Known as Accugraph

    Posted Jan 31, 2012 By Circuit Projects

    The accugraph project aims to discharge NiCd/NiMh/LiPo rechargeable batteries and collects data in order to keep the rechargeable batteries…

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  • AA Battery Used to Power AVR Microcontroller

    AA Battery Used to Power AVR Microcontroller

    Posted Jan 31, 2012 By Circuit Projects

    The project illustrates how it managed to power AVR microcontroller from a single AA battery with simple circuitry which is also driven by…

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  • Monitoring Device Known as Batwatch

    Monitoring Device Known as Batwatch

    Posted Jan 26, 2012 By Circuit Projects

    The project utilizes an Atmel ATtiny13V in order to create the Batwatch that will be used to monitor a solar panel battery charger.

    During…

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  • Battery Discharger with Precision

    Battery Discharger with Precision

    Posted Jan 26, 2012 By Circuit Projects

    The project uses a cheap and reliable discharger circuit with an easy visual indication of the battery’s state as it creates a precision…

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  • NiMH Battery Charger Based on AVR

    NiMH Battery Charger Based on AVR

    Posted Jan 25, 2012 By Circuit Projects

    The simple project is built around an ATmega8 that utilizes PWM and ADC to control the charging current of NiMH battery cells.

    One very…

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  • 36 MWh Rechargeable Battery

    36 MWh Rechargeable Battery

    Posted Jan 24, 2012 By Joel Burns

    This week’s video covers topics ranging from the smallest microphone to the largest rechargeable battery. This video is produced by…

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  • How to Repair Laptop Battery

    How to Repair Laptop Battery

    Posted Jan 24, 2012 By Circuit Projects

    Laptop batteries can be one of the most frustrating parts of an older laptop. They differ from other types of batteries in that they…

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