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Anyone who can help or point me in the right direction.
Happened a few times now. When my multiplus is in Absorption, starts off 14.4V ish then shoots up to 16.2v which which causes over voltage alarms. Don't know if this has damaged DC system yet but I suspect the batteries, although the current is low. I suspect the multiplus is faulty.
Any help would be appreciated.
Rgds
How long are these high voltage periods. What batteries are installed. Is the installation in a vehicle?
Batteries are 2 x 130AH AGM, Yes it is in a vehicle. The over voltage alarm goes off and this is usually in the middle of the night, when charger kicks in on low battery. When alarms go off usually disconnect from mains
1 x Multiplus 12/1600/70-16
2 x 100/20 Smarsolar MPPT
1 x BMV712
1 x GX Device
VE.Direct and VE.Bus
VE.Configure Multiplus
Rgds
Did the multi change over to float charge? 12hrs in absorb seems odd.
Could some other charger be charging the batts as well?
You should check your multi settings for charging. I am on Lithium maybe these will help you.
If you can, download the data sheet for your batteries. And check the labels on them for charge parameters.
As @ScottD said, likely this is caused by the wrong battery settings. For some lithium setups 14.4V is too high. First thing that stands out is that the lithium box isn't ticked.
Remember to check MPPTs as well. Settings should match, or if you have a charge voltage range on the batteries, set the multiplus voltages slightly lower to prioritise solar.
Thankyou for your reply - the batteries are 12V 130AH AGM batteries and the settings are from the battery data sheet. I can't find anywhere In any of the configurations MPPT/Orion/Multiplus, that would push the voltage to 16.2V.
In Veconfigure 3 there is a battery type drop down. You can use to select the type of battery and then you can fine tune the settings. As in my previous screen dump. You would want to untick Lithium. You would obviously be looking at the Absorption voltage in the console. MPPT and Multi Charge settings are 2 different settings. Just FYI. You would need the system to be on the VRM portal to download the settings from the multi under devices. https://vrm.victronenergy.com/login
Remote VEConfigure
Would you like to download and upload Remote VEConfigure files from and to the devices connected to your GX device?
Once you are connected to the VRM portal and the install is found.
You can get the tools from https://www.victronenergy.com/support-and-downloads/software
VE Configuration tools for VE.Bus Products
Download the settings as outlined above and then open them in the Ve Confiigure 3 app installed on the windows computer. To save any changes to the configuration file for uploading. Just close the application and it will prompt to write the file. You can then upload the file to the multi and the configuration will be applied.
I can think of two possibilities. Some other charging source, but that's ruled out, fault in the unit.
Sorry but I think you need to get this back to the seller under warranty.
