I am debating between the L2B vs KBC-E1S. The things that attracts me to KBC are:
1. Smaller size. Lighter in weight. More suited for travelling on the road usage
2. Removable AA batteries. Can always pop in new ones ourselves.

The thing I have concern about, it may not provide enough current for the N8 when the AA batteries isn't fully charged or at half charge.

http://lesterchan.net/blog/2009/09/21/sany...ooster-kbc-e1s/