http://cgi.ebay.co.uk/14Amp-24V-Adjusta ... 35ace1c106
Decent looking CC/CV/float switch mode digital charger very cheap here. 24v gel or AGM (adjustable) and will charge your batteries rwice as fast as a rtpical 7 amp powerchair charger. Will need an anderson style connector direct to batteries though. Dont connect this via your normal charge connector.