What if charger is smart? and if it fills battery by itself and keeps it full, but not too much. That is what Automatic Battery Charger with Trickle Charger Circuit does; it has part that checks battery power and if battery is low it sends power to fill. When it is full it gives little […]
Battery Charger Circuits
Simple Automatic Battery Charger Circuit using One Transistor
This post shows very easy way to make Simple Automatic Battery Charger Circuit using One Transistor and with few parts. Also, this circuit charges battery by itself like small machine, as it uses only one transistor, one resistor and one LED. Furthermore the circuit is good for charging 9V battery where LED shows when charging; […]
How to Find the Charging Current of a Battery
To charge battery safely we need right amount of electricity like current, as it is the same like plant needs right water. Most people use multimeter to check this but not everyone has it; also in this article for How to Find the Charging Current of a Battery is easy trick without tool: Circuit Working: […]
Simple Li-ion Battery Capacity Tester Circuit
Imagine we have a phone battery but how long does it really last? as this Simple Li-ion Battery Capacity Tester Circuit is like a battery health checker. It shows how much power our Li-ion battery like in phones or laptops can still hold, as it also helps us know if the battery is getting weak […]
SCR Based Solar Charger Controller Circuit
Lets say we have solar panel charging a battery, but we do not want to overcharge it! SCR Based Solar Charger Controller Circuit works like a smart switch and it uses special parts called SCRs to control how much power goes from solar panel to battery. Also, it give just enough and not too much […]
1.5V Audio Amplifier Circuit
A 1.5V Audio Amplifier Circuit is small circuit it makes sound signal more strong using only 1.5V battery; also this type of circuit is low power amplifier which is good for things that uses battery or when big power is not there or not needed. Circuit Working: Parts List: Components Values Quantity Resistors (All resistors […]