Quote:
Originally Posted by Pikebreath
I just purchased an 80 lb Minn Kota Terrova. It's a 24 volt system so I will need two 12 volt deep cycle batteries hooked in series.
All my current lead acid batteries are group 29 and 31 types with 90 - 105 amp hour ratings and reserve capacities of 185 - 205 minutes. A couple are about 5- 6 years old so I am thinking of replacing them.
I notice that similar group size AGM batteries such as the Optima Bluetop D31M have 75 Ah and 155 minutes.
As we camp and do a lot of fishing off the grid, battery run time is more important to me than battery life and the number of discharge cycles. My concern is getting maximum number of trolling minutes per charge / outing.
For those of you have run both types of batteries (lead acid vs AGM) do you find that a similar sized lead acids run longer before needing charging than the equivalent group size AGM batteries?
If you go by battery ratings, that should be the case, but does experience bear that out?
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i purchased the highest amp hour rating I could find.