02-10-2019, 06:47 PM
My 3200 has a Battery Interconnect Switch that was left in the On position while running both engines. What damage can be done to the batteries or alternators when this occurs? Tiara manuals say this should only be done when running on one engine or if a battery bank is not working?


![[-]](https://www.tiaraownersclub.com/forum/images/netpen-pro/collapse.png)