LiFePO4 - SOK or Renogy.
Not looking for a big bank or high charge/discharge currents. Don't need charging below freezing. In Canada things become difficult/expensive. Narrowed down to these 2: 1)SOK, 100AH, $CAD 975 ...
Forum Discussion
phemens wrote:
He helped me figure out all the correct settings for my MPPTs and charge controller.
Lynac Lithium
As an aside, the storage of LiFePo4 batteries at 50% is meant for long-term storage (i.e. over the winter), not a problem at all if it's a matter of weeks.
I'm curious what he suggested on controller settings. I see manufacturers labeling their controllers "Lithium compatible" while they are just regular 3-stage controllers with Bulk, Absorb and Float, and Absorb is often fixed 60-90 minutes. My impression has been that Lithium cells don't need Absorb for any substantial period of time. Odd controllers like EcoWorthy that switch to Float in a few seconds after hitting Absorb, is what it needs. I think Float won't hurt much, especially if you set it below BMS cut-off, so it would just start Bulk when voltage drops below Absorb.
Yes, 50% SOC is for long term storage. When you're going to use it in a matter of days or in 2 weeks, you can charge it fully. It's a sliding scale, the more paranoid you are about it the better the chances are that it would live up to the promised 3000-4000 cycles.
