SmartShunt not syncing to 100%

Steve85737
Thu, 26 Mar 2026 13:03:44 +0000
DIY

I’ve set my SmartShunt 300A to synchronise at 1% tail current, 56V and 10 minutes. This is with a 600Ah 48V Victron battery bank (2S3P connected with 250mm2 copper busbars). All loads are on the system side of the shunt. Yesterday I watched in anticipation of the shunt synchronising to 100% but after about 30 minutes I gave up and manually set it to 100% because it was just sitting at 99%. The charge current was well below 6A. Any ideas what could cause this behaviour?

26 posts - 6 participants