Hi, I need advise, I have been using a 8Kw Sunsynk inverter for 2 weeks now and are still learning all its features. I have 1 x 5.12Kw Li-ion battery as backup for load-shedding. Once cash-flow and funding allows I will invest in PV panels and an additional battery, however recently my power drops once load-shedding starts and a few minutes later the inverter comes back on and all is well again. It never used to have a power dip between power failures (load-shedding). What can be the cause as I am at a loss?