Fast Charger for Car battery



Here is an efficient Car battery charger for fast charging the Car battery. It is a 5 Ampere charger with Digital Volt and Ampere Meter to display the charging voltage and current. Since the charger provides maximum 5 Amps current, battery can take high current it needs to charge very fast. As the charging process completes, current flow reduces to zero and will be displayed in the meter. So it is easy to confirm whether the battery is fully charged or not.
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How to connect Panel Meter in Battery Charger



Digital Volt Ampere Meters are now available which can be used in Battery chargers to monitor voltage and current. One section of the Meter displays 0 to 100 V DC and the second section displays current 0 to 10 Amperes. The Meter works off 4 to 30 V DC. Let us see how it can be used in a charger….
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How to select resistor for 1 watt LED


1 Watt LEDs are widely used in Emergency lights and LED lights. Most of the circuits use 4 volt battery having 0.5 to 4 Ah capacity. The 1 watt LED is rated 3.6 volts maximum so we need the correct value resistor for LED to get maximum brightness. Let us see how the LED resistor value is determined.
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Solar Garden Light


Solar Garden Light
Make a lighting path in the garden using this simple Solar LED light. It automatically turns on in the evening and gives light in the garden. LED light turns off in the morning. You can select any colour LED like Green, White or Yellow as per the choice.
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Automatic Solar Outdoor Light


Automatic Solar Outdoor Light

Very simple to construct an Automatic Garden light using Solar Panel and LED light. ON in the evening and OFF in the morning. No switching needed and it light the premises of home even if inmates are not there. No circuit complication is here instead  only a Relay and few components are used to make this efficient Solar light. It is very well lighting my home.

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Efficient Car Battery Charger


It charges 12 V Lead Acid battery with 5 Amps current and Automatically stops charging when the battery voltage increases above 13.8 V to prevent over charging. Charger starts charging when the battery voltage is below 11.8 V and stops charging at 13.8 V.
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Automatic Battery Charger


Here is an efficient battery charger for Car battery and Inverter battery. It quick charges the battery with 5 Ampere current and cut off charging when the battery attains 13.8 V which is the full charge condition of the Lead Acid battery. Red LED indicates charging process while Green LED indicates full charge and charger cut off status.
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