I battle tested my coozy today. Morning temps were in the single digits. And climbed to the mid 30s by the afternoon.
Punched about 12 holes first thing (guy i was with didnt wanna lug his gas auger
) at about 7am
Set the Ion down and waited (with my coozy/warmers on).
Roughly 4hrs later i drill about 10 more holes, still had 3 bars of battery, cut like it just came off the charger.
3.5 hrs later when packing up, cut another hole just to make sure, still had 3 bars of juice, cut no problem.
Temps through out the day are as follows. While it warmed up during the day. People have been reporting battery issues in temps in the 20s. And Ion recommends keeping it over 40deg.
8am : 12F
9am : 16F
10am : 23F
11am : 29F
12pm : 31F
1pm : 34F
2pm : 36F
3pm : 37F
4pm : 36F