add duration of battery

sunfounder · Jan 19, 2022 · 052bb48 · 052bb48
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diff --git a/docs/source/battery/battery.rst b/docs/source/battery/battery.rst
@@ -16,6 +16,9 @@ About the Battery
   * Pay attention to the poles of the battery, and DO NOT connect to the positive and negative poles inversely.
   * Do not use batteries that are damaged in appearance.
 
+**Duration of Use**
+
+.. image:: media/duration.png
 
 
 **Button Top vs Flat Top?**

diff --git a/docs/source/battery/media/duration.png b/docs/source/battery/media/duration.png