How can I connect wire between 2 batteries and the charger of Stannah 400?

hi there, having trouble fully understanding your question but you should have 240v ac volts going into charger at one end and two pairs of wires coming out the otherside, they should be red/black 24v dc which should go to the rail terminal block[underside of rail top] and supply voltage to the 2 x 12v batteries in carriage. the other two wires should be yellow/black 12v dc which should connect to the lower terminal block[underside of rail]and supply voltage to the hinge battery located inside the rail at hinge join..i will say not all rails have hinges so the yellow/black wire are usualy cut of near charger on installation!!!!.......hope this helps.....ian...portsmouth uk..

IAN
May 2012