Looking for a good battery to run in my SX350 box mod

[TK Bisher]

I'm in the market for some good safe batteries to run in my new SX350 box mod that I'm in the process of building. I currently own Sony VTC4 and VTC3 Batts and have been seeing that they are getting harder and harder to come by. So I would like to know if anyone has been using anything else comparably safe in their mods as I would like to reserve my Sonys for my mech mods. Thanks in advance and the VU community is truly by far been the best, so thanks again ladies and gents for the advice and help.

 

[Rommel]

Maestro Vapes flashed some yellow 75 A pulse and 40 A continuos 26650 batteries in his Doge video. Im making a mech box with two of those. If youre planning on using 18650 there is nothing better than Sony.

 

[Warhawk-AVG]

We were just talking about a battery that can run that without even breaking a sweat
http://vapingunderground.com/threads/basic-mosfet-wiring.2361/page-2#post-154601

https://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=32710

And are small enough to fit inside a box mod

5A at 50C continuous and 100C burst...that's 250A continuous and 500A burst!!!