My 304Ah battery with 200A Daly bms shows 12.9v. However, when I connect to ground with my shunt itthe voltage drops to 2.2v. I get no power through my power panel on battery. When connected to shore power I have 13.7 v . Is possibly my shunt bad???
No power when connected to ground
- Thread starter IDMT
- Start date
sunshine_eggo
Happy Breffast!
What else is connected to ground?
meetyg
Solar Addict
- Joined
- Jun 4, 2021
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Can you show us a picture of your connections?
Maybe there is a short in the shunt? How did you connect the positive wire of the shunt?
Directly to the frame
Positive of shunt to the Positive of the battery with in line fuse
sunshine_eggo
Happy Breffast!
So, the only thing connected to ground is the battery? Nothing pulls their (-) from ground?
Why do you even have a battery?
Seriously though, if you are experiencing a precipitous voltage drop when connecting to ground, something connected to (-) ground is pulling so much current, the BMS is registering a short circuit and entering protection mode.
Is there anything connected to ground that pulls a load? An inverter?
