Reply To: Battery Failing In the middle of the night

What’s the battery size (maHr)  and solar panel (W)?.  Also which port do you plug the solar panel into?

I’m wondering though, you are also sampling every 5minutes, do you need it to be that frequent? Would 15minutes work?

Interesting, it does seem to be a sudden V drop. Looking at the raw readings on the downloaded csv it is also oscillating from 4.1V to 3.6V a couple of times, which seems very unlikely in real life. Time snip at UST 2021-08-25 14:00
<table width=”344″>
<tbody>
<tr>
<td width=”140″>time</td>
<td width=”140″> time diff</td>
<td width=”64″>V</td>
</tr>
<tr>
<td>2021-08-25 14:00</td>
<td>0:05</td>
<td>4.094</td>
</tr>
<tr>
<td>2021-08-25 14:05</td>
<td>0:05</td>
<td>3.563</td>
</tr>
<tr>
<td>2021-08-25 14:10</td>
<td>0:05</td>
<td>4.094</td>
</tr>
<tr>
<td>2021-08-25 14:15</td>
<td>0:05</td>
<td>4.094</td>
</tr>
<tr>
<td>2021-08-25 14:20</td>
<td>0:05</td>
<td>3.563</td>
</tr>
<tr>
<td>2021-08-25 14:25</td>
<td>0:05</td>
<td>3.563</td>
</tr>
<tr>
<td>2021-08-25 14:30</td>
<td>0:05</td>
<td>4.154</td>
</tr>
<tr>
<td>2021-08-25 14:35</td>
<td>0:05</td>
<td>4.139</td>
</tr>
<tr>
<td>2021-08-25 14:40</td>
<td>0:05</td>
<td>3.563</td>
</tr>
<tr>
<td>2021-08-25 14:45</td>
<td>0:05</td>
<td>3.563</td>
</tr>
<tr>
<td>2021-08-25 14:50</td>
<td>0:05</td>
<td>3.563</td>
</tr>
</tbody>
</table>