scottiej Posted March 12, 2009 Report Share Posted March 12, 2009 I was told by 2 other companies that the battery that is closer to the amplifiers gets used more than the battery in the engine compartment. Wouldn't that hurt the smaller battery in back if I went with a d680? How do they come up with these names like 680? Odyssey has a pc680 and XS has a D680, is it about the size of the battery? If so does that make a D3100 bigger or more powerful than a PC2150? No, the D680 would be fine in the back, just make sure your wiring from the front to the back is adequate. Our 680's, 925's, and 1200's are the same size as the Odyssey models. For us, the number indicates the size of the battery. The larger models like the 5100 up through the 3100 indicate the group size of the battery. The 2150 and the 3100 are the same size, but many users have swapped out 2150's for 3100's and noticed a nice difference in the performance of their systems. Quote XS POWER Batteries, Chargers & Accessories 888-4XS-POWER Link to comment Share on other sites More sharing options...
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