Power Demands from Fridges, Winches and Other Accessories Make a Dual Battery Charging System Indispensable in Modern Cars. |
Posted: November 25, 2020 |
A dual battery charging system contains two batteries connected in parallel that doubles the amount of electricity available to you. In the least complicated setup, its installation includes a conventional on-off switch that needs to be operated manually. At the campsite, you will throw the switch the other way so that your accessories such as fridge and lights are not using the main battery which is used by your vehicle to start the engine. A four-way manual switching provides you more control over your dual battery charging system. You can manage which battery is doing what job. Some switches are designed so that only the secondary battery can be used for bigger power draws such as fridges. However, the problem with manual switching is that you have to remember to put the correct battery on at the right time, failing which you may end up without sufficient power to start your car the next day. You may not have enough electricity to crank your engine on a cold day after an overnight stay on a campsite. The dual battery charging system in modern automobiles are set up in a way that it can temporarily take one battery off from the main electrical system so that both batteries do not go flat at the same time. The system automatically takes your second battery out of your main battery based on a variety of factors. Automatic dual battery charging system In the simplest of the automatic dual battery charging system, the setup can switch on the secondary or auxiliary battery for charging as soon as the engine is cranked. The solenoid then automatically isolates it from the system when the engine is turned off. This ensures that both of your batteries are not drained at the same time as accessories draw their power from the secondary battery, not the main battery. However, the problem with this setup is that the battery may end up drawing power from the secondary battery instead of the alternator when it connects to the circuit as you turn on the ignition key. Moreover, as the secondary battery is usually of a different type than the starter or main battery, it may get drained before the main battery is able to crank your engine. If this happens, you end up having two dead batteries at the same time! Voltage-sensitive relays To prevent this scenario, some modern Australian cars feature voltage-sensitive relays that do not connect the secondary battery to the system when you start your car. It waits until the engine is running and first fully charges the main battery of your vehicle. Once you’re at the campsite, both batteries will be able to provide you power until the voltage in the main battery falls below a certain level. At this point, the voltage-sensitive relay will act in the other direction to isolate the batteries again. This arrangement ensures that both of your batteries do not discharge completely at the same time, and you always have the power to crank your engine or run your onboard accessories. Fixing problems with your automotive dual battery charging system However, if you are experiencing problems with your dual battery charging system, such as engine cranking slowly, battery uses too much water or overheats, the auxiliary battery does not charge, lights are dimmed, there is noise under the hood, or your car doesn’t start at all, it signals a problem with your automotive dual battery charging system. If this is the case with your vehicle, get your dual battery charging system inspected by auto mechanic Brisbane who has expertise in the functioning of all types of dual battery charging systems used in modern cars. Sandgate Auto Electrics and Air Conditioning have RACQ-approved auto electricians Brisbane that use the newest diagnostic tools and automotive software to find and fix problems with your dual battery charging system and advanced electronics. The auto mechanics Brisbane will check the problems with your car’s dual battery charging system and do repairs with OEM parts if required. You will be advised of a replacement if required. Pictures of all the repair work done will be provided to you with your invoice along with the notes by the technician for your future reference.
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