Re: [RE-wrenches] lithium in cold weather/heating

2022-07-22 Thread Jay via RE-wrenches
Hi Michael Do you know if Discover is coming out with larger Helios batteries? 30 amp hrs is pretty small. And thanks everyone for the answers. As to the blue planet, I don’t think they need heaters. I was working on a system with one and the battery housing was darn warm, much warmer tha

Re: [RE-wrenches] lithium in cold weather/heating

2022-07-21 Thread Nick A Lucchese via RE-wrenches
Greetings Jay, I’ve been using Blue Ions exclusively for the last 5 years almost. Most of my sites sit around 1800-3000’ and only had two shutdowns due to cold temps. Since it takes such significant periods of time for that much mass to get to get below the temps of concern it really just hasn’

Re: [RE-wrenches] lithium in cold weather/heating

2022-07-21 Thread Michael Morningstar via RE-wrenches
1st line of defense: Agricultural seed tray heat mats w/ integral T-stat 2nd LOD: Empire wall heater (no electronics) w/ industrial temperature controlled relay (TCR) (similar to a thermostat) set to 38 degrees 3rd LOD: Battery side of charge controller circuits have TCR controlled contactors to b

Re: [RE-wrenches] lithium in cold weather/heating

2022-07-21 Thread frenergy via RE-wrenches
Jay,             With the SimpliPhi's we've been installing we require a shed on slab, walls R-21, roof, R-38 and then the smallest propane wall heater (they use zero power to operate) we can find and set it at 55 degrees.  No need for the insulated box or fretting about toasting $20K+ in bat

[RE-wrenches] lithium in cold weather/heating

2022-07-21 Thread jay via RE-wrenches
HI All, As I get more calls for offgrid designs with lithium batteries I”m wondering what you all are doing to keep the batteries warm when it gets cold. For some of you 0 F will seem mild, others super cold. Doing a battery box and heating that or heating the whole inverter/battery shed? I