http://cgi.ebay.com/Portable-12V-9V-...item3a5ee63d13
I found out that no white noise comes out from DR1000S when it is being charged(I don't know if it can also be applied to others' devices) and decided to buy an external battery pack which has large capacity.
The one at the upper link will work well with DR1000S, considering its specifications? Although its capacity is 15000mAh(Wow!)-5V, it seems so cheaper, doesn't it?
I wonder what your thoughts are.