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Hi 20VT I increased my float charge voltage and lowered my expectations I'm afraid I'm far from being a guru, so please take my advice with a pinch of salt. Essentially, with my inverter, the bulk charge voltage is pretty arbitrary because it never gets there (due to the premature float bug). So my only lever is the float charge voltage. This should probably be in the 26.4 to 27V range but I've increased to 27.4V. On some days when I'm at home all day (there are a lot of those lately), I do a manual bulk charge by increasing the float charge to 28.2V for a few hours in the morning. I'm not sure if this method will destroy my battery life, but it seems to kind of work for me right now. Good luck

Hi Coulomb Thanks for the quick response. There are actually equalisation settings which I can configure from Watchpower. Should I do something like reduce equalisation voltage to bulk charging voltage and set to equalize daily? Your help is much appreciated

Good morning Thank you for all the info I’ve gathered to date. I have recently installed a 3kva Axpert inverter (24V) and am struggling with the premature float bug (as far as I know there is no firmware patch for the 3kva and setting 32 is not available to adjust the time spent at maximum voltage). As far as I understand the premature float bug only occurs under certain conditions (voltage above float AND low charging current). This morning I did a test with charger source priority set to utility (output SBU and solar panels disconnected). I discharged the batteries down to the back-to-grid voltage (24.5V) and I hoped that I would get my batteries up to the CV voltage (28.2V). But again, it got to the float voltage (27V) and stayed there – never reaching CV voltage. My back-to-discharge voltage is 27V and max charging current = max AC-charging current = 20A. Any ideas? Is there any way to somehow trick it into fully charging the batteries? Thanks in advance