I had to replace the battery in my 23B. It requires a group 27 deep cycle battery. Found out when the dealer replaced the battery a few years ago, they put in a24 cycle. Anyway, It has been about wee...
I am thinking that your charger will be fine Make sure that you set it to the 12V side and charge away. It should not take any more tha 6 or 8 hours to fully charge your battery with a standard charger and probably a lot faster than that.