![]() ![]() Disconnect the battery before attempting any work on the alternator.Remember that reversing battery polarity will damage alternators.Don't run the alternator with any of its leads disconnected.Don't disconnect any charching circuit lead, including battery leads, when the alternator is running.Never charge the battery of an alternator fitted car or remove the alternator from the engine, withhout disconnecting the battery earth lead.Ensure that the connections in the main supply lead remain tight, clean and free from corrosion. The most important is the starter motor circuit. There is not enough current available to begin the current generation cycle. It is recommended to check ones a year the positive lead and the ground connection of the battery and all other connecting leads to the car body.Īlternator fitted cars with a very flat battery cannot be pushed or tow started. Therefore you need a modified mainswitch with built-in two secondary switches, see the diagram below.ĭiagram battery Master Cut off switch for NSU To avoid damage to de alternator (diodes), a keramic resister should be used between alternator B+ and ground, including the cut off ignition between terminal 54/15 and the ignition coil terminal 15. To stop a running engine, switching off the main electrical circuit between the positive pool and the starter/alternator must be done. The engine runs on by the output voltage of the alternator!īasic diagram switching of the negative battery terminal and ground This type of connection has no security aspect to stop a rotating engine. This is the most common application for this kind of switch,Īnd only useful when the engine is not running! It lowers the chances of the battery malfunctioning. DaierTek 12V 20A Waterproof Rocker Switch Blue LED Lighted Round ON Off 3 Pin 12 Volt Weatherproof Illuminated Toggle for Marine Car RV Truck -5Pack 9.99 (2.00/Count) Product details Package Dimensions : 2.8 x 1.8 x 0.5 inches 0. The main thing you need to know about what’s the importance of a battery on/off switch-short circuit protection, safety and save costs. Negative battery terminal and ground lead to the car body. A battery disconnect switch cuts off the connection between a battery and accessories that can drain it. However, battery on/off switch is installed and used in an electrical system that enables the operator to fully disconnect electrical current or power running via an application. The battery master switch can be used between the
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