My friend's mother bought an 1100mAh Ego battery from MV last week and it doesn't seem to be taking a charge. Out of the box, she only gets about 3-6 puffs out of it before it starts flashing. She puts it on charge and it takes over 9 hours for the light on the charger to turn green. Then it only works--very weakly--for 3-6 puffs. She's using an Ego charger that is working for her other batteries, but this one just doesn't want to charge.