You need to wire them in parallel mate. ie; connect both reds together and both blacks together, then connect the lamp wires to these as you would with one battery. If you connect them in series ie; red to black red to black, you will double the voltage and blow the bulb.
will give that a try and let you no what happens, that should give me the 14amp wouldent it and not the 24v
edited to add would i charge as a normal battery ??
lamp
That would deffinately give you 14 amp/hour but will take longer to charge. You ideally want a bigger charger for a 14 amp battery pack.