ok ,now I'm going to show my age and lack of modern technology.. the 250 just picked up has a calcium battery in it which needs a top up charge before I work on the bike ,can it be charged using a normal cheap charger ,my last charger which has stuffed up had 3 setings for wet ,calcium and gel ,the only charger i have left is a cheap projector one no settings etc just switch on and walk away and keep checking