Car Battery Charging System Diagram

If the power came from an ordinary battery it would soon run down so a car has a rechargeable battery and a charging system to keep it topped up.

Car battery charging system diagram.

A summer circuits edition on all things outdoors good but what of all the battery powered circuits that remains indoors. It means that the alternator voltage output is below 12 volts or over its limit or has stopped charging the battery and your car is running on battery power. Related post 12v portable battery charger circuit using lm317. There is also a trickle charge mode circuitry which will help to reduce the current when the battery is fully charged.

I hope this helps people avoid wasting money on parts. The purpose of the charging system is to maintain the charge in the vehicle s battery and to provide the main source of electrical energy while the engine is running. The battery has pairs of lead plates immersed in a mixture of sulphuric acid and distilled water. Usually the first sign that your charging system is in trouble is a battery alt or charge warning light illuminating on your instrument panel while driving.

A lead acid battery has certain defined characteristics than make it easy to evaluate the health of the charging system without fancy test gear. Test your charging and electrical system. A car uses quite a lot of electricity to work the ignition and other electrical equipment. The circuit diagram of the lead acid battery charger is given below.

The regulated dc out voltage is given to battery. Slow cranking system test. If the charging system stopped working the battery s charge would soon be depleted leaving the car with a dead battery.