Battery for my trolling motor...twin or single?

[jwardmagic]

I have a 55lb thrust troling motor that I am looking to buy a 12v deep cycle battery for. I found that I could buy two 85ah batteries for ?60 each, or a 135ah battery for ?150. To me, buying two 85ah batteries and connecting them in parallel seems better as I'd be basicaly then using 170ah for a lot cheaper than buying a single battery.

The two cheaper 85ah batteries are shown on the following links:
http://www.tayna.co.uk/Numax-CXV24MF-P3126.html

And the single more expensive 135ah battery:
http://www.tayna.co.uk/M135-Premium-Numax-Deep-Cycle-Marine-Battery-P3774.html

The 85ah batteries say they are sealed (suitable for marine) and deep cycle.

My question is, would my assumption that two 85ah batteries be better than the single one correct? They would also weigh less.
What are the pro's and cons?

If anyone can help I'll be very grateful!

Thanks

 

[Silvertip]

Re: Battery for my trolling motor...twin or single?

You are correct in your assumption..