ECO-WORTHY 6 String PV Combiner Box - whats combining?

[@SunBitSynergy]

Your inverter might not be accepting the charge because your battery is full try using a small load on the battery while you're doing your test. Also, I can't see the connections you were using very well on the combiner box and I cannot see the wiring in the box.

[@StellanLarsson]

Thank you for answer! t´s the six string one with diodes I add positive and negativa in 2 of it´s string. No big deal. I got load(lamp) on the battry and I have tried a battery that need charging. I can see that you use one string. Try adding morw or less power to one more and see what reults you get.