The construction of a simple circuit to protect a lead acid car battery when it is not in use is described in this article. The circuit increases the life of the battery and protects its overall health condition. It can be dangerous to build lead batteries for cars. Try working with an adult who is […]
Battery Charger Circuits
Simple Battery Saver Circuit
Some devices such as calculators and remote controllers contain a special circuit designed to safeguard the batteries. If someone accidentally leave the device ON this circuit helps prevent the batteries from draining too quickly. However the batteries will still start to slowly lose power as time passes even with this circuit. The Circuits Goal: One […]
Simple Dual Battery Charging Circuit
Does anyones device ever ran out of batteries but have some more that are of the wrong size? This article explains how to construct a circuit that uses a single power source to charge two separate batteries. It ensures both batteries are charged equally by using a special chip called an IC 555 along with […]
Simple Constant Voltage, Constant Current Battery Charger Circuit
This post discusses how to construct a clever 12V battery charger! Using a common chip known as the LM317 this charger provides two constants: voltage and current. Voltage reduces excessive load on the battery And current maintains a safe rate of battery charge. What is a Constant Voltage, Constant Current Battery Charger: A battery charging […]
High Current Solar Battery Charger Circuit for 12V, 24V, 48V Batteries
Building a solar panel charger that is functional with several battery types is discussed in this article. By modifying a tiny component of the circuits zener diode which can power batteries with voltages of 12V, 24V, or even 48V. As a result it can be used for a wide range of purposes What is a […]
Simple Power Bank Circuit for Charging Mobile Phones
This articles guidelines are used to create a portable phone charger circuit that is similar to those seen in stores. Keeping a fully charged phone when traveling or out is a great idea. From little chargers that fit in a pocket to bigger ones that can power several devices these chargers come in a number of […]