I want a secondary battery to make use of some gadgets without compromise the main battery. The purpose of this setup is the usual one among the car and audio hobbyist. I am missing something simple af and I don't know what. I am missing something? Is this not a relay as i know it? Or it is a solenoid? Should I add a switch to control the relay?Īs an example, here is a mounting diagram. Then when I turn off the power, relay should change again and charge (but no, because the alternator would be off) the other battery. Intellitec 0000629120 Isolator Relay Brand: INTELLITEC 28 ratings 5500 About this item Package dimensions: 2.3 cms L x 10.9 cms W x 13. It also allows the use of self-exciting aternators. Itprovides a delay to allow the engine to briefly 'warm up' and to recharge the main battery before placing theheavy load of a discharged auxiliary battery on the alternator. If I'm not wrong, this will make the relay change it's state when I turn the car on, charging just one battery. Product Description The Battery Isolator Relay Delay/E is a reliable approach to charging multiple batteries on a vehicle. Most of the instructions wire 12v directly with the relay coil. Together, these components simplify switching and automate charge sharing. This includes the Dual Circuit Plus battery switch and the 120 Ampere SI-Series Automatic Charging Relay (ACR). ![]() While the instructions are clear and mount the batteries to it doesn't look like a problem, I'm puzzled. An ideal way to switch and manage charge of the batteries while underway is with the ADD A BATTERY from Blue Sea Systems. They look like simple big fat spdt relays. There are a lot of ready to deploy products in this line, most of them looking like this. Wanting to avoid the voltage drop and heat issues of diode isolators, I started to check mechanical isolation (relay). Doing some research I came across the two main techniques to do this, both based on isolate the two batteries being fed from same alternator to avoid charge issues. I want to make a dual battery setup on my car.
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