solar panel confusion

ks65609

Member
Aug 30, 2009
342
Ontario Canada
Boat Info
1992 330 Sundancer
Engines
Twin 454 Mercruiser--340hp

V drive inboards
I currently have two switched 12V marine 60 ah cranking batteries connected in parallel. Our 230DA is wired for 12V dc with no shore power option.
I have purchased an 12V DC/AC television for occassional use with probably 2 to 3 hour continuous run time.
The tv draws 70 watts which I believe can be converted to 5.8 amp hours.
I am thinking of a small solar panel to keep the batteries fresh however unsure of the unit capacity I should purchase.
It looks like maybe a 5 watt unit may be adequate but could sure use some expert advice.

Thanks
Ken
 

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