otrfun wrote:
For folks like yourself who monitor their battery & converter closely, this risk is lower. However, I would surmise most folks would prefer not to be babysitting converters and batteries while they're on vacation---I know we'd prefer not to.
In any event, NONE of the above risks exist when charging with a 2-3 stage converter (with the proper voltages)---even if the converter and lifepo4 battery are left unattended for weeks, months at time. It negates these risks by automatically activating a completely safe, lower float voltage as soon as the lifepo4 battery is fully charged.
I can agree with this, although I don't monitor it that closely like some people do. only when I am wondering about something. I guess what I could say is I built my own and selected my BMS for features I wanted that would let me use the BMS to compensate for a single stage converter as there really weren't any Li dual stages that I had found when I was buying equipment, well affordable anyways haha. and like I mentioned if you buy an off the shelf LFP battery you don't know exactly how it works or what the settings are unless they tell you.
Now I built my camper battery out of eve cells, and they actually spec charging at 14.6 until the cell voltage is at 100% (3.65) then turning the charge off. so what I did is set up my BMS to do this when I am on my balancing cycle, for my normal camping cycle I charge at 14.6 but shut it off when the battery capacity reaches 90%. The only time I must interact with this is when I change that 90% to 100% to do the balance and all that is, is opening my cell on the morning, I decide to do the balance and click my second profile. Then I set a reminder to put it back after it gets dark. which is probably still more than most would want to do.
so, I guess it's the difference of how you look at it, and what you learn when you build vs buy. I had the opportunity to select my accessories to operate it the way I wanted to. I still think a two or three stage charger would be good if there were decent ones out there... Maybe I am just being picky, but I would like the ability to adjust the voltage of each stage independently and be able to switch stages based on voltage feedback from the battery bank. it would be nice if we could turn the equalization cycle into a balancing cycle also, so every so many days (you set it) it does a full charge with the extra time for balancing then automatically goes back to your regular setting. any converter companies watching this haha I wonder if I could make something like this with an Arduino.