SOC jumping – Battery balance?
I’ve had my inverter running for 6 weeks and I’ve had two days when the solar has charged the battery to 99% but something doesn’t look right with the SOC.
I have 4x Sunsynk 5.32 batteries in parallel.
Charging looks normal until the SOC reaches 88% then in a space of 4 minutes it jumps to 99%
I’m thinking it could be a problem with balancing the battery packs. Does anyone have experience of this?
Is it a case of connecting on battery pack at a time and charging until 100% before reconnecting them all in parallel?
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Thanks, thats very helpful.
My installer did not do any balance on install so I'll fix it this week.
I'm force charging in winter anyway so after balancing I can change the charge to 100% peridoically.
What would constitute a regular 100% charge? In the winter I grid charge twice a day but not to 100%. Would a 100% charge once a week, that is one charge in 14 be reasonable or would you recomend more frequently?