Hello, I'm a new member. I'm in the process of setting up a small solar power system in the Yukon. I've purchased a Multiplus 24V/2000, an MPPT 150/45 and lithium batteries. Here's the issue.
The fellow who will do the final installation had a bad experience with a Victron charge controller. He says that it failed to read the temperature correctly, and as a result it fried a set of new batteries. He blames the problem on this, that information about battery temperature is communicated to the contoller via Bluetooth rather than via a cable. Because of this bad experience, he has stopped using Victron and is advising me to do the same, at least as concerns the controller.
My questions are these:
1. Is this a real issue? On this site I have found cases where an MPPT controller has misread battery temperature, but in these cases the reading was too low and the consequence was that charging stopped.
2. Is it possible to set up the MPPT controller so that temperature info is communicated via a cable and not through Bluetooth. (This is what the installer wants.)
Thank you in advance. (Ik ben engelstalig maar NL is geen probleem.)