help with second battery

[photocrazy8 10+ year member]

Ok i have one stinger sp 1700 as my main battery right now and i want to put a second one in the back. would i need to buy 2 new ones since the one i have right now is about a year old and the old one might want to discharge the new one? thanks, andrew

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[photocrazy8 10+ year member]

help?

 

[Rattlebrain 10+ year member]

Get a battery isolator. That will prevent that from happening.

 

[Rattlebrain 10+ year member]

http://cgi.ebay.com/ebaymotors/sure-power-ind-160-amp-battery-isolator-model-1602_W0QQcmdZViewItemQQcategoryZ33577QQitemZ8049806868QQrdZ1

Not advertising, just showing you what I'm talking about.

 

[photocrazy8 10+ year member]

i dont want to have the trouble of having that isolator under the hood. i dont have that much room as is. i just want the batteries it parellel.

 

[smd4life 5,000+ posts]

you can mount it in the rear of the car, it'll be fine

 

[photocrazy8 10+ year member]

then i would have to run a wire from the alt to the isolator (in the back), and then a wire from the isolator back to the main battery (in the front) correct?

 

[Rattlebrain 10+ year member]

then i would have to run a wire from the alt to the isolator (in the back), and then a wire from the isolator back to the main battery (in the front) correct?

yes.