That is consistent with my understanding of how these things work and thanks again for posting the details of your set up.
I have a very simple BMS, that so far in bench testing has worked well:
http://www.batteryspace.com/PCM-with-Equilibrium-function-for-12.8V-LFP-Battery-Pack-30A-limit.aspx
My plan is to primarily charge this with a programable MPPT solar charge controller (from Victron) so I can set the charging parameters to match the battery pack. I will connect it to the truck as well through a blues sea ACR, but generally leave it isolated unless it is desperately needs a charge.
I have a very simple BMS, that so far in bench testing has worked well:
http://www.batteryspace.com/PCM-with-Equilibrium-function-for-12.8V-LFP-Battery-Pack-30A-limit.aspx
My plan is to primarily charge this with a programable MPPT solar charge controller (from Victron) so I can set the charging parameters to match the battery pack. I will connect it to the truck as well through a blues sea ACR, but generally leave it isolated unless it is desperately needs a charge.
cdbrow1 said:I am in California Central Valley so extreme cold is not a problem when stored. I do head into the Seirras and Great Basin at any time of year and I used the system into the single digits last year without trouble. My batteries are inside in the stock location (below the furnace) so I assume they are warmer than the exterior (there are no battery vents). My supplier does not recomend charging when the battery (not ambient) is below freezing, but discharge is allowed down to -30C. There is no issue of fire, but there is an issue of "dendrite growth" and failure of the cell.
The Battery Management System (BMS) is the most important component - make sure you know how yours works.
https://starkpower.com/safety-of-lithium-ion-batteries/