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Join Date: Jun 2009
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Re: How big of a starting battery do I really need?
There are also the Odyssey AGM's such as the PC925 or PC545. These are small batteries. I install a fair amount of the PC925 and they have a 380CCA.
I have one that has been starring a 3YM now, as a dedicated starting battery, not just reserve, for about three years. They take near identical charge voltages as the flooded batts so no charging issues there.
I am curious what the tradeoff is between using a PC925 as the starting battery vs. using the house bank as the starting battery and the PC925 is a emergency starting battery. Say, for example, a 4xT-105 house bank.
My inclination would be to always use the house bank and keep the 925 always charged (via ACR) but never used. My assumption is this would make the 925 last much longer, but not impact the house bank much.
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