April 25, 20233 yr Hello, I have an Axpert (I believe MKII) set to Sol...I have 9x340w PV array set in three strings of 3. In the afternoon my running load is about 300w. On a sunny day I would expect the PV array to fully cover this with any residue from the Pv array going to charge the battery if not full. However with utility current off it using battery first on a sunny day which mean there will be lower reserve at night. Any help would be appreciated to help get it to use power from pv and reserve battery for night time. Current settings are: Setting 1: Sol Setting12: 51v Setting13: 54v Charge setting is Solar first. This image shows the routine on a sunny day where PV voltage is reading 104 but pv watts and amps returning 0.
April 25, 20233 yr What main (U1) firmware are you running? I vaguely recall problems with solar charging on older firmwares, perhaps for this model.
April 26, 20233 yr Hi AntonySolar, I had the same problem: I changed the timmer settings (see manual "USB and timer settings") to override the SBU priority and now it works fine. I think standard setting is utility first between 0h and 23h, which means "override standard setting all day long". Maybe this helps Regards Frank
April 26, 20233 yr On 2023/04/25 at 2:05 PM, AntonySolar said: Current settings are: Setting 1: Sol Set it to SbU, it will work fine.
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