very short battery life
I bought one of these from lucknetwork on ebay. It was dirt cheap ($4 + $6.40 shipping), arrived promptly, and came with several mounts. However, to me, it's pretty clear their battery life is nil.
The first time I used it after charging it a day or so, I got about 4-5 minutes recording time with it. I left it on the USB cable for a couple days. It then recorded for 13 minutes, 18 seconds, then shut off, apparently out of battery. After letting it sit awhile so the battery could recover some, I started recording again. It recorded for 20 seconds, then shut off; to me a clear indication of a discharged battery.
The seller's last reply on this (at least he responded to me) was this when I described the problems and asked about getting a better battery:
Dear buyer,
I am sorry that the goods take inconvenience to you,I don't know what's the problem,all products would be checked before send out.
But this product haven't battery alone,we can replace it to you a new,this is our adrdss:
Wei Luo
E16,GanLanPengYuan,CaiTian Road
FuTian District
ShenZhen 518000
China
I don't think it's worth the trouble to try to return it for probably a new copy of the same thing. I will try someone else's suggestion here to attach it to external power.