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What are the pros and cons of adding a second battery?

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Old 10-18-2002, 08:24 PM
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What are the pros and cons of adding a second battery?

Should I or should I not?
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Old 10-19-2002, 01:33 AM
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Pro- More off-engine listening time

Con- More strain on alternator, especially if you don't use a battery isolator..
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Old 10-19-2002, 08:47 AM
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what's a battery isolator
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Old 10-19-2002, 02:30 PM
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basically a solenoid that disconnects the extra battery, so that your alternator isn't trying to recharge 2 batteries at once..
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Old 10-19-2002, 10:03 PM
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Originally posted by TL@altimas.net
basically a solenoid that disconnects the extra battery, so that your alternator isn't trying to recharge 2 batteries at once..
why can't we have 2 alternators
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Old 10-20-2002, 12:04 AM
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You can.. if you have room for another, and most likely another idler.. or you can replace another accessory (A/C, PS)

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Old 10-20-2002, 06:50 PM
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Originally posted by TL@altimas.net
basically a solenoid that disconnects the extra battery, so that your alternator isn't trying to recharge 2 batteries at once..
huh?
bro ....the alternator is supposed to charge both batteries simultaneously...what a battery isolator does is this: it keeps both batteries seperated from each other. so that when the car is off, a battery that has been drained more than the other wont pull current from the battery that has more charge. isolator is like a one way valve. it connects both batteries to the alternator so as to charge both at the same time, and as a valve (using diodes) to keep the batteries seperate from each other.
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Old 10-20-2002, 07:33 PM
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lol, according to this we're both off base..

http://www.soundillusions.net/module...owpage&pid=113

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Old 10-20-2002, 07:39 PM
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Originally posted by TL@altimas.net
lol, according to this we're both off base..

http://www.soundillusions.net/module...owpage&pid=113



i was on point with that one
i didnt say it clearly though, i'll give u that....the isolator seperates the 2 batteries from each other meaning one can be drained without affecting the other, and both are charged simultaneously
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Old 10-20-2002, 07:47 PM
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Why exactly do you think you need 2 batterys?
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