I have found cheapbatterypacks.com to be the best place for packs. their elite cells are second to none and they will make custom packs for you if they dont have your pack listed so you will get exactly what you want. their website is extremely user friendly. I bought 2 packs from them for my T4 (6 cell elite 4500) and they give me about 15 mins of good hard runtime. they do not fade off! They stay srond till they are dead then drop of suddenly. Deans connectors are the best like noted by peetiewonder. this is just my .02 worth.

cody