In this post I have explained how to build a simple 12 V to 19 V boost converter circuit which can used to charge a 19 V battery from a 12 V car battery. The main application of this circuit could be for the charging of a laptop battery from a car battery, How the […]
Battery Charger Circuits
Types of Batteries Explained [NiCd, NiMH, Lead Acid, Li-Ion]
In this post I have explained the main types of batteries that are widely used in today’s world for almost all important applications, ranging from cars, automobiles mobile phones, airplanes, industries, satellites to name a few. The Nickel Cadmium (NiCd) Battery Fundamentally, the NiCd battery adopts fast charging as opposed to slow charging and employs […]
Laptop Power Bank Circuit
In this post I have explained how to build a simple laptop power bank circuit which can be used for charging a laptop battery during travelling or during outdoor trips. This device can be specifically useful on situations or places where an AC mains outlet is unavailable or difficult to find. Why Laptops Need a […]
How to Switch Two Batteries Manually using Opto Coupler
The following article explaining a dual battery changeover relay circuit was requested by Mr.Raja so that it could become possible to switch between his old and new inverter batteries automatically, eliminating manual interventions. Let’s read it in details. Technical Specifications “I bought a new 12v 110 Ah lead acid battery for the dc home lighting system. I had another 12v […]