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 […]
Battery
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. […]
Make this 18V Cordless Drill Battery Charger Circuit
In this post I have explained how to build and use a 18V battery charger circuit for a cordless drill machine. The idea was requested by Mr. Chibuzo. Technical Specifications The Design Whether it’s a lead acid battery, a Ni-Cd or a Li-ion, this multipurpose battery charger shown below can be applied for any of […]
Battery Bank Charger Circuit
The post narrates an automatic Battery Bank charger circuit with an automatic over charge cut-off feature for operating with an electric car. The idea was requested by Mr. George. Circuit Objectives and Requirements I’m George From Australia trying to convert small car into an electric car. The attached PDF show the configuration of lithium battery […]
Battery Backup Time Indicator Circuit
In this post I have explained a battery backup time indicator circuit for monitoring the battery power usage by the connected load and for estimating the approximate remaining backup time of the battery. The idea was requested by Mr. Mehran Manzoor. Circuit Objectives and Requirements I want a circuit which shows remaining time of backup […]
Multiple Battery Charger Circuit using Dump Capacitor
In this article I have explained how to build an automatic battery charger circuit using dump capacitor concept for self detecting and charging a multiple set of batteries. The idea was requested by Mr. Michael. Circuit Objectives and Requirements My name is Michael and live in Belgium. I found your site thru google during my […]