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 Charger Circuits
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 […]
Camper, Motorhome Battery Charger Circuit
In this post I have explained a battery charger circuit specifically designed for camper and motorhome applications, so it can serve as an effective camper/motorhome battery charger circuit operating through any shore power supply source. The idea was suggested by “music girl”. Battery Charger for Motorhomes Based on this customized battery charger circuit I would […]
How to Set IC 741 for Auto Cut-oFF
In this post I have explained how to set or adjust an opamp 741 IC based battery charger circuit for implementing an automatic cut-off for the connected battery once it reaches the full-charge level. Since I have many such IC 741 battery charger circuits posted here, the instructions will be helpful for correctly setting up […]
Self Optimizing Solar Battery Charger Circuit
In this post I have explained a simple IC 555 based self optimizing solar battery charger circuit with buck converter circuit that automatically sets and adjusts the charging voltage in response to the fading sunlight conditions, and tries to maintain an optimal charging power for the battery, regardless of the sun ray intensities. Using a […]
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 […]