Powderskier
New Member
Hi I'm new to lithium batteries. I have 9000 watts of solar, 2 strings, going to 2 growatt 80 amp charge controllers. These feed 6 growatt 5.12 kw batteries. I'm having 1 battery not charging at the same rate. 4 batterys are at for example 75% one is at 50% and the other is less than 25%. I changed the location of the controller attachment ti the bus bar to more even out the distance to the other controller feed and now its the same situation but with 2 other batteries. I'm looking at buying 10 more 440 watt panels and another controller. Am I correct in thinking I'm under feeding the battery bank? Thank you gor any help.