I had one of these devices and in less than a month 2 strips stopped charging. When installing the batteries, the charge indicator never activated to indicate that it was being charged. The same batteries placed in different strips indicate that they are being charged. So I changed it to the second block with Revain. In less than 5 reloads, the leftmost row did the same! After inserting the battery you will see that the battery is not inserted although it was working when it arrived. Installing the same batteries on a different track shows that they are being charged. So the bottom line is that the FC997 is nothing but junk. I had an FC999 Mark III which lasted much longer. So I recommend these instead. In fact, I would have taken it instead of FC997, but 999 no longer showed up as available. Now it's like this: take 999 instead of 997.
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