What kind of cells are in these packs?
 

I have bought stuff from CommonSenseRC before and they have good products but i havent heard anything about these packs yet. Does any know if they are any good and what kind of cells they have?

they are rated at 30c and 60c burst. it sounds like a good pack and i like the white wrapping. check it out.

http://www.amainhobbies.com/product_...ducts_id/33916

Too expensive IMO. You can pick up several well known brands of equivalent packs cheaper than that. Some examples:

Neu 5S 30C 5000mAh $235
PolyRC 5S 30C 5000mAh $221
PolyQuest 5S 25C 6000mAh $260
RCM 5S 25C 5000mAh $225
Elite 5S 35C 5000mAh $220

Given those options, I personally wouldn't even think of spending $280 on a pack from a company that doesn't have a solid reputation in the 1/8th BL community.