This article for Simple Low Battery Indicator Circuit using Two Transistors tell how to make small circuit for battery device. When battery goes low it uses only few parts like two transistors to turn ON one LED light; so this way we can know when to change battery before device stop working. Circuit Diagram: Parts […]
Battery Charger Circuits
Self Discharge Battery Protection Circuit
This article for Self Discharge Battery Protection Circuit teaches how to make one easy circuit to protect car battery (lead acid type) when not using. Also, this circuit help battery live more long time and keeps it healthy. WARNING: Making lead battery for car can be dangerous, so try to do this with one big […]
Battery Saver Circuit
Some things like calculator and TV remote have special circuit inside and this Battery Saver Circuit help to protect battery; also if someone forget to turn OFF the circuit, then it stops battery to finish fast. But still battery will lose power slowly with time even with this circuit. The Circuits Goal: After one minute […]
Dual Battery Charging Circuit
Did anybody’s device ever had no battery but have other batteries with just wrong size? then this post will show how to make a Dual Battery Charging Circuit. Also, it uses one power to charge two batteries and it uses one small chip called IC 555 and other small things to ensure both battery get […]
Constant Voltage, Constant Current Battery Charger Circuit
This Constant Voltage, Constant Current Battery Charger Circuit teaches about how to make smart 12V battery charger! also, it uses one common chip named LM317 IC. Further, this charger give two thing always same: voltage and current. Voltage help stop too much load on battery and current ensures battery charges slowly and safely. What is […]
High Current Solar Battery Charger Circuit for 12V, 24V, 48V Batteries
This article for High Current Solar Battery Charger Circuit for 12V, 24V, 48V Batteries talk about how to make solar panel charger that work with many battery types. Hence, by changing small part in circuit, the Zener diode can charge 12V, 24V or even 48V battery, so this charger works for many different uses. What […]