I have a charge controller hooked up to an old car battery. I can charge all my lights, drill batteries and phones, run lights etc.
The 2 panels are 36volt wired parallel; as the controller can't handle more than 50 volts but can take the amps. It's cost me next to nothing so far, panels were a tenner, charge controller I think was £12. Next step will be the biggest leisure battery I can get.