not sure what type of charger you are using..Or anything about your battery ...If its a nimh or nicad you will need to condition it 1st.. thats a 12+ hour charge at lowest amperage you can do . like .01 amps.. that will bring all cells to correct voltage.. then discharge it and then you can charge it at a more normal current.. dint those have a 220mah 4 cell.. I think they did..so if that is your battery id charge it at 1/10 of A amp.. .10 amps...might go .15 max ..