Well I posted in your welcome thread the following:
Here is the thread I posted looking for suggestions prior to my second trip.
How long is your trip? On my first trip (the 333 mile one) I carried way too many batteries but I was also in my infancy as a flashaholic so I was not carrying high-powered lights (nor cool gadgets like powerbanks) and only using AAA batteries (alkalines at that). By my second trip I had much better lighting, but still carried tons of 18650's (and a few 26650's). I carried a Miller ML-102 Li-Ion charger/power bank but didn't end up needing it much at all. One light I really liked was the UF-H3b headlamp which would run hours (dimmed slightly) on a single 18650 and provided very wide area flood lighting (and easily mounted/hung in a tree). For a lantern I used the 4AA Coleman Pack-away modded using Glass Frosting spray. Worked great and packs small. Easily runs on alkalines.
Nowadays I would NEVER go anywhere without my newly modded mule headlamp. For a powerbank, I use an ENB Triple 18650 with built-in USB charging and received good reviews. Oh, and that ENB power bank can double as your 18650 charger.
-Garry