I have an Accucell-6 and I was charging a Turnigy 3S 4000mah LiPo. It's supposed to alarm me when the battery is full but it never happened. So I look at it and the charger is changing the charge rate and the battery voltage is fluctuating between 12.59V and 12.6V. So I figure this is why it's never telling me it's done. It worked just fine yesterday..Any help?