hi joy and welcome to the forums!
i think u r selling yourself short...
ne1 who can handle nursing can handle amps...
1. panels collect the energy...
2. batteries store the energy...
3. doodads use the energy...
-your doodads (tele and computer) can be powered by the rv batteries...
-just get a small inverter (90-175 watts) and plug it into the round 12 outlet in your rv, then plug the tele into it...
-your doodads use a given amount of energy per hour defined as amp/hours...
-your batteries have a given amount of energy available as defined in amp/hours...
so even without SOLAR panels you can use the doodads for a given time with the current rv batteries...
the lap top has a battery right? and u understand how long it will provide power?
well it's the same basic thing with the rv batteries.
you just need a small inverter to watch tv or recharge the laptop, like these...
small inverters
now the issue is REPLACING/RESTORING the battery charge, in the laptop and in the rv...
-this can be done by plugging in to an 'outlet' in the rv park or at home...
-this can be done by running a generator, plugged into your rv...
-this can be done by collecting sunshine! via the solar panels...
so the solar panels need to be large enough to replace what is used from the batteries...
panels have a 'rating' for this concept, and basically '100 watts' of solar panel is a typical setup...
as little as 50 watts might be enough and as much as 200 watts might be better...
depending on how much quality sunshine they are exposed too, and for how many hours of exposure...
it also depends on how many hours the tele and computer are used, or how much the rv batteries are 'drained'.
so again in simple terms, 100 watts of solar panels and 2 deep cycle batteries are typical...
agm batteries cost more but are easier to use and require less care by users...
Lifeline Batteries - Marine & RV Deep Cycle Batteries
usually '200 amps' of battery, with provides about 100 amps TO USE is adequate and that's basically 2 deep cycle rv batteries...
so that's the basics solar panels and batteries, what's left?
a 'charge controller' and metering device.
basically the c.c. is responsible for channeling the solar energy captured by the panels INTO the storage area (batteries)
and the metering device reports how much juice you are using...
i'm sure this all is clear now right!
IF you google 'rv solar basics' several good sites will explain this more and try to sell ya stuff...
of course u can also just find a solar vendor in your area and give them money...
hopefully they will set you up right.
cheers
2air'
now back to your ORIGINAL question..
YES you can get a single portable panel and use it to 'charge' the rv batteries...
then use the rv batteries to power the tv or laptop...
but it will be annoying to set up, plug in, and power up when needed.
just google 'portable solar power systems'...
there are also complete 'portable solar packs' that can be used to recharge the laptop battery...
but these tend to be EXPENSIVE and capture/provide VERY LITTLE real power, in amps...
oh no! there is that word again
-and a eu1000i honda generator is about the size/weight of a carry on suit case...
and easier to start than most lawn mowers or cardiac defibrillators...
so don't ignore the easiest and least expensive approach to recharging the rv batteries...