In this post I have explained what are gel cell batteries and also learn how to build a specialized charger for charging a gel cell battery, with full calculations. The proposed circuit works in two modes: it starts charging a discharged gel cell battery with constant current, until the full charge voltage is reached across […]
Battery Charger Circuits
3 LED Battery Level Indicator Circuit
The proposed 3 LED battery level indicator can be typically used for monitoring a 12 V lead acid battery charge level, through 3 distinct LED illumination. The entire circuit is built using just a couple of BJTs , a few zener diodes, resistors and LEDs. Different Ways to Check Battery Voltage A hydrometer is perhaps […]
Battery Deep Discharge Protection Circuit
In this post I have explained how to build a battery deep discharge protection circuit which can be used for protecting any type of battery from over discharge through a connected load. Normally, we are mostly worried about battery getting over charged, and forget about a situation where the battery can get over discharged by […]
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 […]
12 V to 19 V Boost Converter Circuit
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 […]
Simple SCR Battery Charger Circuit
In this post I have explained a simple yet accurate SCR triggered battery charger circuit which can be used effectively for charging all types of battery, which includes, lead acid battery, Ni-Cd battery banks, Li-Ion battery, etc. This SCR charger can be seen implemented in most automobile garages, and is very popular among auto mechanics, […]