2018 Tab 400 - SRNE Charge Controller - What does the app information tell me?

MaggieM

Hi all,

Request: Needing some assistance understanding what the SRNE charge controller app (SRNE app link) is telling me and if the settings are set correctly. Attached below are screenshots of the app readings. Could someone help walk me through what each of these boxes are telling me, and whether the settings need to be changed for optimal charging/discharging? I'm not very familiar with all the terms (what does "load" mean?), so some basic explanations would be helpful. I didn't see any guides for the app on how to interpret or define this information. I attached many screenshots of the app below.

Background: We have a 2018 Tab 400 (2nd owner) with a SRNE charge controller and solar panels mounted on top. We just replaced the stock battery (see below) with a Renogy 12v 200ah AGM (link to Renogy website) and after the install, I noticed that our charge controller located under the bed had a empty battery symbol. Sleuthing through the charge controller manual, it appears that the charge controller auto detected the battery as 24v. After manually adjusting on the charge controller to 12v, the battery shows up at 100% charged and some of the app functionality started to record information.

Sharing photos of all of the electric setup in case this affects the settings on the charge controller.


Many thanks for any help here!


Original Stock Battery:




Charge Controller installed



Photo of charge controller prior to new battery install:



Inverter:




App screenshots of charge controller from SRNE app after new battery install:

Parameter settings:




Real-time reading:




History (note: I wanted to try to reset this data so we can start fresh to get readings from the new battery, but unsure how to go about this in the app):

Grumpy_G

The only setting that does not make sense is the max charge current of 1A. The battery can take the full 40A of the charge controller if the solar panels can deliver that.

You can ignore the "load" settings and keep the load turned off. In a typical RV installation the load terminals are not connected to anything, but check the rightmost terminals to confirm. 

MaggieM

Grumpy_G said:

The only setting that does not make sense is the max charge current of 1A. The battery can take the full 40A of the charge controller if the solar panels can deliver that.

You can ignore the "load" settings and keep the load turned off. In a typical RV installation the load terminals are not connected to anything, but check the rightmost terminals to confirm. 

Thank you Grumpy_G! I’ll try to see why the charge is showing as 1A. Any ideas on what could be causing that?

Grumpy_G

MaggieM said:

Thank you Grumpy_G! I’ll try to see why the charge is showing as 1A. Any ideas on what could be causing that?

No, but it appears to be a red herring. The screen shot of the real time monitor shows 4.9A charge current. Multiplied with 14.3V that comes out to the 70W the dial at the top is showing.