If you are an automotive technician, vehicle technician, or a motor mechanic, you may find this cheap yet powerful car battery charger circuit extremely handy, as it can be used for charging all types of car and motorcycle battery overnight with minimum effort. This charger is specially suited for garages since it has a rugged […]
Battery
Simple Ni-Cd Battery Charger Circuits Explored
In this post I have explained many simple NiCd charger circuits with an automatic overcharge protection and a constant current charging. When it comes to correctly charging a Nickel-Cadmium cell, it is strictly recommended that the charging process is halted or cut off as soon as it reaches the full charge level. Not following this […]
Precise Battery Capacity Tester Circuit – Backup Time Tester
The precise battery capacity tester circuit explained in the following article can be used for testing the maximum backup capacity of any rechargeable battery in real time. By Timothy John Basic concept The circuit works by practically discharging a fully charged battery under test through constant current, until its voltage reaches the deep discharge value. […]
Arduino Battery Level Indicator Circuit
In this post, I will show how to construct an Arduino based battery level indicator, where a series of 6 LEDs show the level of the battery. If you are interested in monitoring and maintenance of your 12V battery, this circuit might become handy. Why Battery Level Monitoring is Crucial All batteries have certain voltage […]
Battery Full Charge Indicator Circuit using Two Transistors
This little circuit will alert the user regarding a battery reaching its full-charge level (over charge) while it’s being charged, by illuminating an LED. The circuit uses just a couple of transistors as the main active components. Main Feature The main feature of this design is not only its mini design but also its supply […]
Op Amp Battery Charger Circuits with Auto Cut Off
In this post I have explained a two op amp IC 741 and LM358 based auto cut off battery charger circuits which are not only accurate with its features but also allows a hassle free and quick setting up of its high/low cut-off threshold limits. High current batteries can e also charged using these circuits. […]