I have a D400 Wind Generator that I connected to a dedicated Cyrix Li Charge unit and then through to four Victron 90AH LIFEPO4 batteries. The Li Charge unit keeps switching on and off, which causes the windgen to brake, producing a humming sound. The 6TB regulator that comes with the D400 windgen is factory set to 14.2V. What is causing the Li Change units to continually switch on and off.