Hi. I wanted to place a second battery in my car due to the audio system. People advised me not to buy a larger capacitor (I already have one farad) but add anothet battery. I have heard that batteries can "drain each-other" when the car is not working, and the safest thing to do is to disconnect them when the car is off. Now I like that idea since I can listen to music when the car is off, and wont have to worry about not being able to start the car when the battery dies. Now I have few questions about this project:
I have a manual relay but I will prefer something that can be turned on "remotely" with a current - like a starter solenoid. My question is, can I use a 12V starter solenoid for this application? I am not sure if this type of solenoids can be used with current passing through them for longer periods of time.
The system I have will be using 500Amp max (connected to the secondary battery) so I am not sure how much current will be going through the connection between the front battery and the second battery placed in the trunk. So my next question is - does the solenoid/relay have to be rated for the 500amps or less?
The cable I have right now that will be connecting two batteries is fused - do I need to keep this fuse? or is it useless after I add another battery?
Any help will be appreciated, Thank You, Luke.
I have a manual relay but I will prefer something that can be turned on "remotely" with a current - like a starter solenoid. My question is, can I use a 12V starter solenoid for this application? I am not sure if this type of solenoids can be used with current passing through them for longer periods of time.
The system I have will be using 500Amp max (connected to the secondary battery) so I am not sure how much current will be going through the connection between the front battery and the second battery placed in the trunk. So my next question is - does the solenoid/relay have to be rated for the 500amps or less?
The cable I have right now that will be connecting two batteries is fused - do I need to keep this fuse? or is it useless after I add another battery?
Any help will be appreciated, Thank You, Luke.