I bought this hobbyking UP610 200w smart battery charger around three months ago. It has been working very well, up until this morning. Overnight, I had been charging a homemade lifepo4 pack at 10 amps, (4S pack). In the morning, I disconnected the charger, and when I reconnected it to power, the screen was visibly duller, and it is unable to charge. I am curious as to what chinesium magic is in this thing that makes it so powerful in such a small form factor.