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Old 06-07-2016, 11:31 PM   #1
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Default adding a second battery to 2100 sr

Has anybody added a second battery to a 99 2100 SR with a 5.7. Not sure on the amperage, I'm asuming 120. Bluesea has a kit I'm wanting to try and am sure it comes with instructions. Any suggestions on where best location is for second battery since trim pump is on opposite side. Thanks
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Old 06-08-2016, 01:14 AM   #2
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You will at least 550 CCA on that battery.
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Old 06-08-2016, 04:14 PM   #3
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It should be straightforward. I assume you have a battery shutoff now. If it is an ON/OFF, replace it with a 2 pole [1-2-BOTH-OFF] isolater. The battery negatives get connected together. The positive of the primary would go to post #1, the positive of the new battery goes to Post #2.
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Old 06-09-2016, 02:03 AM   #4
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Ok thanks. Wanting to be able to run the radio and obit worry about no cranking power. I've looked at the bluesea kit and it appears straightforward enough.
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