i just got the xcal1000 used it yesterday works fine got it home and put in to charge (about 10 hours) reconnected the battery to the xcal torn in on and all i get is a click in the headphones and nothing checked the charger to c it there is juice (there is none )checked the battery it shows about 7V charge and does not charge any more than that ....could the charger that is blown mess up the cells in my battery?