I have two PWM solar charge controllers that are extra for my installation.
I have seven of these in use at this time, they are connected to 355 watt panels and some are connected to 100 watt panels. I use them with both 12 and 24 volt batteries (lithium batteries so it isn't exactly 12/24 volts). Depending on what batteries you need charges and their voltages these can be used and work quite well. They also work with other battery types other than lithium.
These are model HP2440 charge controllers. They are brand new and are extras that I don't need. Price is 18 dollars each.
I have more solar panels that I was going to use these with but haven't had the need. If they don't sell I may hook them up if I buy more batteries. I use two and three 350 watt panels to charge my 24 volt batteries. I use one panel to charge my 12 volt batteries. May sell some 350 watt panels if someone is interested. Price for panels TBD.
If you can see this ad they are available, will update if any changes happen. I will not reply to people asking if they are still available!