It should be noted that the controller will turn on automatically when paired with SFK's BMS. After the ice box test I said from 0 Deg. Fahrenheit to 72 deg. I meant to say 0 deg. Celsius to 72 Fahrenheit; basically, from freezing to 72F. Be sure to charge your cells to a relatively low SOC to help them slide in easier.. I recommend no higher than 40% SOC. The 12 and 24 timer modes run at 70 degrees that's why they did not come on at room temperature in the video. SFK has always had great customer support. Many times have they responded as late as 11pm at night, or during weekends and they always respond fast. Let me now if you like the narration style build videos VS. talk as you go style. Sorry if the camera mic VS. narration voice over were at different volume levels.. Oh.. and, LMK if you find the "fish balls" :). Use promo code NATESDIY at checkout to save some cash! Nate.

Great video about a great product. I can't wait for SKF to come out with their 16s battery on which it works and keeps all its features. It would be great to have the battery heating programmable and monitored in a smart app via wifi remotely from anywhere there is internet and independent of the BMS so it would be universally applicable to all batteries.

I’d love to see Will Prowse open that battery and for a review, he would loose it over all that extra wire! lol really nice build tho! Big fan of the jk bms