The main feature of this lambda-diode low battery indicator for Ni-Cd batteries is that, the circuit itself consumes almost zero current, until the set low threshold level is reached and […]
Using MOSFET Body Diodes to Charge Battery in Inverters
In this post we try to understand how the internal body diodes of MOSFETs could be exploited for enabling the charging of battery through the same transformer which is being […]
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 […]
Simple Ni-Cd Battery Charger Circuits Explored
The post discusses a simple NiCd charger circuit with an automatic overcharge protection and a constant current charging. When it comes to correctly charging a Nickel-Cadmium cell, it is strictly […]
Regulated Car Battery Charger Circuit for Garage Mechanics
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 […]
3 Smart Li-Ion Battery Chargers using TP4056, IC LP2951, IC LM3622
These smart, intelligent battery charger will charge a Li-IOn battery rapidly by monitoring 3 crucial parameters, which are constant current, constant voltage and constant 25 degrees Celsius temperature. The post […]
Multiple Battery Charger Circuit using Dump Capacitor
In this article we will try to build an automatic battery charger circuit using dump capacitor concept for self detecting and charging a multiple set of batteries. The idea was […]
Timer Based Cell Phone Charger Circuit
A simple cell phone charger with timer circuit is presented in the following article, which could be used for charging a given Mobile phone for a specified predetermined length of […]
High Current Wireless Battery Charger Circuit
In this article we learn regarding how to design and make your own customized high current wireless battery charger circuit using wireless power transfer concept. Introduction In many of my […]
Battery Charger Circuit using Fixed Resistors
This universal automatic battery charger circuit is extremely versatile with its functioning and can be adapted for all types of battery charging and even for solar charge controller application. Universal […]