http://cgi.ebay.co.uk/PowerTech-SLA-6v-4-Amp-hour-SEALED-LEAD-ACID-Battery_W0QQitemZ130136752315QQihZ003QQcategoryZ40 975QQcmdZViewItemhttp://cgi.ebay.co.uk/PowerTech-SLA-...-Battery_W0QQi temZ130136752315QQihZ003QQcategoryZ40975QQcmdZView Item

so would 3 of the above be alright, and would that give a total of 12ah or just 4ah? and when wiing them up wouldit go
bat 1 pos-bat2 neg
bat2 pos-bat3 neg

cheers