Power Geeks! I need your help!!

[Prepper1]

Thats the same setup I'm getting.
I've got the array just not got a battery yet.
I wasn't going to use a charge controller as I've read that there only for arrays pumping out more juice than the battery can handle.
The controller thereby reducing it to a safe charge level.
But the array we've got is just a trickle type so produces less than the maximum allowed charge anyway.
It's something that's supposed to be left on constantly trickling into the battery.
I think theoretically if your battery was fully charged and the array was keeping it topped up, you just have to be careful not to take out more than the charger puts in.
The array I think produces 4 watts which is 0.33 amps @ 12volts so tha'ts not a lot of charge.
I used an online converter for that reading so....I presume that would charge at 0.33 amps per hour?

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therefore I presume you couldn't take more than 0.33 amps per hour out? or slightly less to maintain a small charge say 0.30?
Just my idea of the situation, I was going to try and combine at least another two or three of these arrays as money allows to help boost the charge rate and also let me run more stuff.
I maybe talking boll**ks I'm not sure, maybe an expert can tell us...