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Multiple batteries for a boat system!


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endossmoke 
Member - Posts: 1
Member spacespace
Joined: May 30, 2002
Location: United States
Posted: April 10, 2003 at 3:25 PM / IP Logged  
OK, I'm going to have 2 big amps in my boat, and I don't want them to cause me to be stranded in the middle of nowhere this summer!
So here are my questions:
Can I hook up 2 (or more) batteries directly to each other to prevent a fast drain? Can I do this? Will it burn up my amps? What about my alternator?
If that's possible, I also want to switch an extra battery via isoloator or a manual perko switch for "just in case". Which would be a better choice?
Thanks!!
auex 
Platinum - Posts: 5,041
Platinum spaceThis member has made a donation to the12volt.com. Click here for more info.spacespace
Joined: December 23, 2002
Location: Arizona, United States
Posted: April 11, 2003 at 4:23 PM / IP Logged  
If you are worried about running out of juice on the lake then you should( in my opinion) use two batteries wired through the manual switch and that way one will power the audio and one will power boat. You could use an electrical isolator but that is just one more thing that could get wet and go bad. If you just want to add one more battery then wire two deep cycle batteries in parrellell.
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copcarguy 
Copper - Posts: 122
Copper spacespace
Joined: February 12, 2003
Location: Pennsylvania, United States
Posted: April 11, 2003 at 4:42 PM / IP Logged  
Check into a priority start system. If your battery drops to a pre determined voltage it disconnects the battery from the system to allow for starting. They are weather proof and available through a work van outfitter called "American Van". I am pretty sure they have a website.
R Jackson
Owner/Installer
TRM Emergency Vehicles
Information is advice only and should be confirmed with OEM or quality test equipment.
Boyertown, Pennsylvania

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