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What is a 12V Battery? Twelve-volt batteries are commonly used in RV, boat, and other automobile systems. From a technical perspective, a battery uses one or more cells to allow a chemical reaction creating the flow of electrons in a circuit. Batteries do not create energy or power on their own.

12V batteries are common types of batteries that are used in powering boats, cars, RVs and other forms of automobiles. Some 12V batteries are also used alongside generators to generate electricity and power up
Batteries come in different shapes, sizes and differ in their uses. The 12V battery is one of such common batteries. However, what do you know about the 12-volt battery and what is its use? A 12-volt battery is a kind of battery that is often used for various electrical gadgets and appliances. The 12-volt battery is distinct and different in its use, as it comes in different shapes and sizes.In some instances, they might be large and heavy or small and light.They may be cylindrical or square batteries. Furthermore, they are also used for transportation purposes in vehicles, boats and other gadgets. 12-volt battery sizes are often influenced by their uses and the amount of amp-hour they are built to produce. Therefore, a 12 V battery implies that a voltage of 12V is supplied within the nominal load by a battery.



Many of the electronic appliances work on 12VDC, and if its portable appliance it uses a 12V Battery to power up. In case the battery drains up fast we also need chargers for these rechargeable batteries. This project serves this need in a very simple and compact construct. With power source from the mains supply through an adapter this project can charge a battery with auto cut off feature. The output should be given to a 12VDC Battery. When a 12VDC Adaptor is connected to the system, the system powers up and scans if the output terminal has a voltage level less than 12VDC or not. If the Battery level is below 12VDC then the charging circuit is triggered ON. Charging remains ON till the Battery level reaches 12V and then the charging circuit is turned OFF automatically. The voltage sensing IC senses the voltage level to trigger the charging events. 12VDC voltage level has to be configured into the IC so that it considers this voltage level as the reference level. Once the reference is set the monitoring by the IC triggers a relay to charge the Battery if it is found to be below the reference level. Similarly, the relay is turned OFF automatically once the charge level reaches or passes by the reference level or 12VDC.

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