Hey Josh,
I have one of those generic chargers...got it off ebay for about $8 or $9 bucks shipped.
I bought it so I can keep it in my bag when out and about during my travels. The SD charger is heavy and bigger, so I leave that in my hotel room (or wherever I'm staying).
Then, if my stuff gets stolen out of my room, I still have a charger to use. Also, 2 extra benefits:
1. this charger can plug into a car lighter jack
2. i can charge 2 at a time while sleeping
Downside.....VERY slow. About 13-16 hours to fully charge one of the big batteries
Batteries...I have always used generics with no problems.
Hey, how do you get free shipping with amazon?