12V to 24V boost converter

[cortijo]

I have a 24v solar power system.
Someone gave me a 12v 123watt solar panel.

I have read that I could use a 12V to 24V boost converter and connect it to a charge controller and to my 24v lead acid batterys.
I would prefer not to have to buy another 12v solar panel to make 24v.

Could anyone recommend a suitable 12V to 24V boost converter or give me any advice.

[Sunking]

[B][SIZE=14px] I would prefer not to have to buy another 12v solar panel to make 24v.

Nonsense. It would be less expensive and a much better solution to buy another matching panel. A Converter is going to use significant power to convert. It will cost more than another panel will and by adding another power would give you about 250% more power than your idea.