Posted February 7, 20223 yr HI, Posting this again, since my timing yesterday (Sunday evening) may have not been so good. I require help, trying to figure out which would be the best back to discharge voltage for my 3.5 KW Pylontech Battery, running on an Axpert inverter. Should it be below the float and bulk charging voltages, or should it be above? Currently my float is at 52.3 and my bulk at 52.5, with the back to discharge at 53 (my float and pulk were previously at 53.1 and 53.2 respectively, but lowered it since it seemed to be overshooting.) should I put the back to discharge at 52.0?
February 8, 20223 yr It doesn't make sense (to me) to put it above the bulk/absorb charge voltage; it would then never switch to battery mode unless the utility goes down. Where you put it is a personal preference. The higher you put it, the more time you spend on utility, so it costs you more on your utility bill. But also the higher it is, the better the chance that the battery will be at its fullest, ready for load shedding. Personally, I leave it lower, since I don't have to worry about load shedding here. If you want the battery to be really full before switching over to battery mode, use the setting value FUL.
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