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Yes, you can but it is not simple... I believe Interstate makes 4 cell (8 volt) batteries. You will need to get a step-up voltage regulator (like a Jacobs Electronics Accuvolt) to charge the battery set-up at a higher voltage than the car battery. Also you will not want to do 2 8 volt batteries but a 8 volt and a 6 volt battery wired in series to = 14 volts (therefore you would need to charge at @16.25 volts, thus the need for the Accuvolt). Also, most don't relieze that you cannot ground this system to the body of the car like a regular set-up. This is because the 14volt battery would discharge constantly and the system would try to keep the hole automotive electrical system at 16 volts when the car is on and at 14 volts when it's off. You may want to look up a vampire battery system for more info or if money is not much of an object check out the X-14 battery at Streetwires.com. Good luck, the 14 volt system works well when you get it done right, but don't quit easily on this, it's worth it. I still don't understand why one of the battery makers (like Optima!) does not add a 2.2volt cell to one of its deep cycle (Yellow top) automotive batteries and sell a **** load to the car audio market, oh well...
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[This message has been edited by h8nxtc (edited 03-22-2000).]
Posts: 35 | From: Santa Monica, CA USA | Registered: Jan 2000
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