Originally Posted by TEC1957
If a person likes "getting away from it all" what battery or batteries 6 or 12v would be the best to purchase for our Sunseeker 3010DS, thanks
"Getting away from it all" implies boondocking or at least dry camping so you'll want the most Amp Hours (at the 20-hr rate) to cover your energy needs between recharging. If planning to camp off the grid, than a wise move is to do an energy audit for the number of days between recharging.
Obviously cost comes into play as good batteries do not come cheap and, in general, you definitely get what you pay for in terms of Ah and longevity of the battery. Make sure the batteries also fit your battery box (you don't want them too long or tall for your space).
One suggestion for boondocking would be to buy no smaller than two Group 31 12-volts connected in parallel. But, you may need larger depending on your useage. As mentioned, if buying 12-volt batteries, also make sure they are truly "deep cycle", which are preferable over dual purpose marine batteries.
Another is to look at two 6-volts in series. The 6-volts are usually sold as golf cart batteries or industrial and so are made to be deep cycled.
My preference is Trojan battery. I personally use two Trojan T-145 6-volts because they have 260 Ah, which usually meets my energy needs, and fit my battery tray without modification. Trojan also makes some deep cycle 12-volts that are nice, although they are a little larger than the comparable 6-volts. Their website is pretty decent for more information.
Hope this helps.