Switch to LIFePO4?
I have a trio of Rolls Surrette FS210 wet cell batteries that give me about 315 AH of usable capacity. My big concern is weight, the total is 400 lbs in my from compartment of the 5er, and I think tha...
Forum Discussion
BFL13 wrote:
Interesting.
It seems that if Li is usually operated under 80% if I got that right, and would have a very high charging efficiency, that the Trimetric's idea of "full" wouldn't be much use, so I was curious.
If you have a % SOC meter of some sort right on the Li bank, I suppose you don't even need the Trimetric, I don't know.
Guys with Li can figure it all out as another adjustment they have to make in how to do things!
BLF13 there really is not a lot to figure out, the bms protects the cells (this is the last line of protection). The fail safe if you wish.
Better to have programmable settings in the charger source but if using one that is "set up" generically for lfp, that's your first line of defense.
Lfp have a high efficiency rate in all levels of the SoC % right up to 99% SoC.
I'll use mine as the example again for fimilarity and long term hands on experience.
1,280w solar & 500ah lfp, all Magnum charge sources. I'll max out at 80a (.16c) when the sun is perfect, the norm is 60-75a (.12c -.15c) continous charging and it will keep feeding the batteries to 99% when it hits 14.2v, does it 10 minutes in absorb at 14.2v then backs off to 13.6v float for the afternoon at which time the solar is feeding all my 120ac items (tv, fridge, dvd, phone chargers, laptops). So that what's being produced in solar or consumed in the rig (my display will show 40-60a draw). When the sun goes down the lfp takes over the heavy lifting.
