why i call Li fussy
Hi all, This doesn't cover all the concerns for me, but it does show at least some of them: https://youtu.be/_PgthByAYz4
Forum Discussion
1.8 x ~13 =~23 watts. A 100 amp-hour battleborn is 31 lbs. It is going to take one heck of a lot of time to raise the temperature to that level where charging is safe.
The Li is a little more than 53% as dense as water. So it would take about 1.8 watts per pound to raise the temperature 1 degree F.
31 x 1.8 =~ 55 watt-hours.
If we started from -30 F and need to get to -4 F then it would consume 26 x 55 = 1430 watt-hours. That, unfortunately, is more than 100 amp-hours. It would also take 62 hours.
In my case, where I might be starting from -35, it is more or less impossible. Even if there are zero losses outside the case of the battery.
This, without detailed information from the particular maker, is just a guess--but I believe it may be in the ball park for "best case".
The Li is a little more than 53% as dense as water. So it would take about 1.8 watts per pound to raise the temperature 1 degree F.
31 x 1.8 =~ 55 watt-hours.
If we started from -30 F and need to get to -4 F then it would consume 26 x 55 = 1430 watt-hours. That, unfortunately, is more than 100 amp-hours. It would also take 62 hours.
In my case, where I might be starting from -35, it is more or less impossible. Even if there are zero losses outside the case of the battery.
This, without detailed information from the particular maker, is just a guess--but I believe it may be in the ball park for "best case".
