Then don't get auto batteries. That's one reason most of us use manual batteries. The other reason is that manual 510 batteries are sealed against juice leaks on the end so you won't kill the battery with a juice leak. And I think manuals are less work too.
Problem is the Smokecig Smokepack may be similar to a 901 one I saw that did not accept manual batteries. They don't seem to offer manual batteries so you can't even ask them really - they may not know or care.
I got this one instead for my standard-length 510 manual batteries
http://www.nosmokeva.com/product/VPCC
And they also sell kits that include the PCC and you can choose manual batteries
It does not hold a fully assembled 510. It does hold a lot of stuff though and can charge one battery and hold another. Note - though - I think if you open the case to get something you need to restart any charge you had going. The lid holds the battery down on the charger connection - no screwing in needed.
If somebody would just make one like the Vapormaxx for longer 510 mega manuals I would be super happy. Standard 510 batteries are 180mah which equals about a 2-3 hour charge, less if vaped heavily, maybe an hour more if vaped lightly. Mega xl 510 batteries are 280mah or about 60% more battery charge (they are about an inch longer making the 510 about 138mm with atty and cart or about 128mm with a standard carto. The only PCC I know of for the megas is the Joye mega PCC which is metal and sort of sharp-edged and the Joye PCCs don't hold much. Only reason I am using the short 510 batteries is that nice VaporMaxx PCC.