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Battery Charger Circuits

Arduino Battery Charger Circuit

Last updated on 2 July 2026 by Admin-Lavi Leave a Comment

This article show how to make a simple Arduino Battery Charger Circuit. Here, charger stop and start charging using MOSFET and then Arduino read battery temperature with TMP36 sensor and decide safe charging. Additionally, circuit is simple and work with basic components. Arduino Code: Code Explanation: Circuit Working: Parts List: Components Values Qty Resistors 10k […]

Filed Under: Arduino Projects, Battery Charger Circuits, DIY Projects, Power Supply Circuits

Simple 12V Battery Charger Circuit using TIP41 Transistor

Last updated on 2 July 2026 by Admin-Lavi Leave a Comment

This is a Simple 12V Battery Charger Circuit using TIP41 Transistor, as it uses one NPN power transistor TIP41 and one 13.8V Zener diode. Furthermore, the circuit is cheap, easy and safe for charging 12V lead acid battery and works for small 7Ah to 20Ah batteries also, further, it is a good circuit for learning […]

Filed Under: Battery Charger Circuits, Mini Projects, Power Supply Circuits, Transistor Circuits

Simple Battery Level Indicator Circuit

Last updated on 24 June 2026 by Admin-Lavi Leave a Comment

No More Dead Battery! Battery gone down? having no idea? then this Simple Battery Level Indicator Circuit can show battery level. Also, easy to make, cheap and works fast; furthermore, know when battery is full or low and is good for beginners and DIY lovers. Circuit Working: Parts List: Components Values Quantity Resistors 2.2k 1/4 […]

Filed Under: Battery Charger Circuits, Indicator Circuits, Mini Projects, Power Supply Circuits, Transistor Circuits

Solar Panel Battery Inverter Connection Circuit

Last updated on 24 June 2026 by Admin-Lavi Leave a Comment

This Solar Panel Battery Inverter Connection Circuit project shows how solar energy converts into electricity to power AC and DC loads. Also, the circuit uses a solar panel, solar charge controller, battery, inverter and AC loads, as this circuit can light a bulb and run a fan easily; furthermore, it is suitable for small home […]

Filed Under: Battery Charger Circuits, Inverter Circuits, Renewable energy, Solar Circuits

Simple PWM Solar Charge Controller Circuit

Last updated on 24 June 2026 by Admin-Lavi Leave a Comment

Want to save energy bill? then try this Simple PWM Solar Charge Controller Circuit and get power from sun. It helps to charge battery from solar panel safely and it also gives power to DC load like LED bulb or fan. Just connect solar, battery and load and then controller will do all smart work […]

Filed Under: Battery Charger Circuits, Mini Projects, Power Supply Circuits, Renewable energy, Solar Circuits

DIY Solar Battery Charger Circuit

Last updated on 24 June 2026 by Admin-Lavi Leave a Comment

This is a small DIY Solar Battery Charger Circuit project, which charges one 3.7V lithium battery using sunlight; also we can use solar cell, TP4056 charger board, one diode, one switch and one boost converter module.. This circuit make 5V power for battery and mobile charging. Graph for lithium battery charge over time: The above […]

Filed Under: Battery Charger Circuits, DIY Projects, Mini Projects, Power Supply Circuits, Renewable energy, Solar Circuits

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