I got a da kube and have been using it for over a year. I recently stopped for about 4 months and when I went to use the batteries after charging them they dont last long at all. In a pinch I grabbed a regular battery and it did not work. Does it HAVE to be rechargable batteries?
some things are weird with batteries, my girlfriend's microsoft mouse doesn't take rayovac batteries. Imo try a few brands then try rechargeable. Edit: didn't realise it was a mflb knock off. my LHS said normal batteries were ok, but you have to peel off the label first. Just be careful you dont puncture it, wear thick rubber gloves and safety glasses