Battery isolator ?'s

[OKLAGMCRUISER 10+ year member]

I recently put a Optima red top and 200 amp Excessive amperage alternator in the truck, but have been thinking about adding a second battery. I have the second battery already so the only additional cost to me is the isolator, connectors and wiring. Any recomendations for an isolator?

this is for a 99 5.3L GMC Sierra.

Pat

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[iceteebone 5,000+ posts]

a stinger 200 amp relay should work. http://www.darvex.com/miva/merchant.mvc?Screen=PROD&Product_Code=SR200&Product_Count=1

 

[OKLAGMCRUISER 10+ year member]

a stinger 200 amp relay should work. http://www.darvex.com/miva/merchant.mvc?Screen=PROD&Product_Code=SR200&Product_Count=1

I;ve looked into these already, but Nathan at Excessive Amperage sold me this alternator can and will likely produce MORE than 200amps...any idea if these stinger relays peak at 200a or can they withstand more...if necessary?

Pat