Some good reading on marine batteries:
Deep Cycle Battery FAQ
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Some good reading on marine batteries:
Deep Cycle Battery FAQ
That's a good site. Peukert's law can be seen when comparing AH ratings and RC. An RC of 180 minutes should translate to 75AH, (25A X 3Hrs=75AH) but actually a 180 minute RC battery normally has an AH rating around 110. That's why RC is a more useful number for TM batteries.