what kind of solar panel would i need to charge i car battery?

i am looking to build a small solar generator to power a few lights and so forth, i have a deep cycle gel car battery, but what watt and volt solar panel would i need to charge it in an efficient amount of time? also, is it possible to hook up 2 small solar panels to one battery to charge it or would that not work? like would 2 5 watts be as good as a 10 watt?
thanks!

What items do I have to purchase to use a solar charger to power home appliances during power outage?

I want to buy a solar charger to power small appliances. The 18 watt solar charger product that I saw in the internet comes with 8 Amp charge controller. The description said I could charge 12 V batteries.
I am not knowledgeable in this. So I would greatly appreciate if someone can tell me the list of items I need to buy with detailed capacities/descriptions of each item and how to connect these items together. I saw a car battery jump starter with DC output in Costco (the description said I can use this to power small appliances but it only had a DC output). Can I buy this as a battery? (I have to charge the battery outside and bring the battery in to use inside home) Or should I rather buy a 12V car battery? Or is there specific batteries for this with all the needed connections? Also I bought an inverter with car charger and AD outlets for using a notebook in the car(150W 110V). But I am not sure I can use this inverter with the solar charger. Again I know nothing about these, so please advise me in easy terms. I’d like to start with a small charger to experiment and if it goes well then I would purchase a higher wattage solar generator so I can use 1500W appliances.

Thank you in advance.