Cold weather 18650 battery test

[jmeddy]

if your unit is capable, just use an Anker battery. they are good for HOURS

thermal optics sells them and the mount for your rail

I run an Anker 6700 on my Thermion with a mag connector and can get all night in the PA winter, a couple nights in fall/early winter.

 

[Kino M]

I've had several discussions with the guys at Nvision about batteries. They've done a lot of testing and they only recommend KeepPower. Ive ran them in -20 in the Rockies all night with zero issues. In the midwest on typical nights I can hunt till daylight and only change batteries once.