I raised this issue on Facebook, but so far no attention to this has really been given.
Mid-April 2026: 12v Battery History has suddenly disappeared…did something change? I have 2 THINK cars, each with an OVMS attached.
- Neither car's 12v battery history is visible any longer, displaying "No data to display"; Android App version: 5.2.4
- Tested with Android Tablet App (v.5.2.3) and initially did display for each car and update button worked one last time, then since it now acts the same
- Raised the issue on Facebook---one response, not helpful
- The issue persists (now May 3rd)
While I have not found any OVMS App code that has changed recently that might affect the 12v Battery History chart plotting, I did see a dependency in AuxBatteryFragment.kt whereby 11 Import lines come from a GitHub archive called "mikephil". Changes in that repository would certainly affect the operation of the 12v Battery History charting. Since I'm still not seeing any charts and am running out of options to explain this, I'm thinking someone made a change in the MikePhil repository recently that broke the OVMS usage to generate the 12v History Chart.
import com.github.mikephil.charting.charts.LineChart
import com.github.mikephil.charting.components.LimitLine
import com.github.mikephil.charting.components.XAxis
import com.github.mikephil.charting.components.YAxis
import com.github.mikephil.charting.data.Entry
import com.github.mikephil.charting.data.LineData
import com.github.mikephil.charting.data.LineDataSet
import com.github.mikephil.charting.formatter.DefaultAxisValueFormatter
import com.github.mikephil.charting.highlight.Highlight
import com.github.mikephil.charting.interfaces.datasets.ILineDataSet
import com.github.mikephil.charting.listener.OnChartValueSelectedListener