Don't want to spend $90 on a battery warmer? We got you. Introducing the $25 Mini Gun Spec Warmer. it's large enough to wrap around two Lipos but short enough to tuck into a lipo bag. 

How it works:

it connects via USB and has three power settings.
Low: heats up to 30c

Medium: Heats up to 45c

High: Heats up to 60c+

We recommend you use it in Low for Team EAM 2s lipos and Medium for Zombie 2s lipos. 

as this is not a smart warmer like the GunSpec, we recommend that you keep an eye on temps with a temp gun, pointing the lazer at the heat element ridges in the rubber mat.