

AW IMR series
AW IMR batteries are the safest
batteries you can find.
Rechargeable Batteries They are safe chemistry, high drain
batteries; each battery individually inspected/tested by AW. However, they can still vent hot gas capable of resulting in second degree burns should they go into failure (thermal runaway).
There is NO completely safe battery; some are considered safer than others.
Beware of "fake" or counterfeit AW batteries, which are often sold on EBay and Amazon. These could be re-wrapped used batteries or re-wrapped ICR batteries made by disreputable distributors out to make a quick & easy buck.
http://www.e-cigarette-forum.com/forum/batteries-chargers/568840-sure-your-aw-batteries-genuine-how-tell.html Purchase genuine AW IMR's from a reputable & authentic dealer like
RTD Vapor.

Rare example of a dramatic AW IMR battery failure which vented outside of a mod.
ICR (protected) batteries should be considered obsolete for mod use. They use a volatile (flamable) chemistry which can vent flames or explode during thermal runaway. Avoid any battery with "fire" in its name like the plague.

Protected Trustfire ICR battery which exploded in my mechanical mod two years ago.
For a list of safe chemistry, high drain IMR & IMR/hybrid batteries with their amp limits:
Battery Basics for Mods: IMR or Protected ICR?
Deeper Understanding of Mod Batteries
* If building
sub-ohm coils, use a
30 amp battery (continuous discharge rate) like the Sony VTC IMR/Hybrid batteries.

Sony VTC series