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Old 07-25-2011
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maccauley123 maccauley123 is offline
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Both batteries are Group 24 wet cell from West Marine. The starting is brand new, the old one was dead, and is 1000 MCA. The deep cycle is about 4 years old with 75ah and has 650 MCA. The deep cycle tested out as 100% health.

Without the engine running I have moved the selector between 1, 2 and both and nothing dimmed or switched off so I must have the right type. I will verify this again but it looks like I can manually control which one is charged for right now.

I do like the idea of the Duo Charge or similar charge regulator and have added this to my project list. I thought with just a simple 2 batter system using Both to charge was adequate, it worked for like 5 years. I didn't realize even that way one battery would be charged more than the other.

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