diff --git a/source/hassio/installation.markdown b/source/hassio/installation.markdown
index 83a8dee27ec..2211ba4381f 100644
--- a/source/hassio/installation.markdown
+++ b/source/hassio/installation.markdown
@@ -20,6 +20,10 @@ Hass.io images are available for all available Raspberry Pi and Intel NUC platfo
 - Optional - Setup the WiFi or static IP: On the SD-card, edit the `system-connections/resin-sample` file and follow the [ResinOS howto][resinos-network].
 - Insert SD card to Raspberry Pi and turn it on. On first boot, it downloads the latest version of Home Assistant which takes ~20 minutes (slower/faster depending on the platform).
 
+<p class='note'>
+Please remember to ensure you're using an [appropriate power supply](https://www.raspberrypi.org/help/faqs/#powerReqs) with your Pi. Mobile chargers may not be suitable, since some are designed to only provide the full power with that manufacturer's handsets.
+</p>
+
 <img src='/images/hassio/screenshots/first-start.png' style='clear: right; border:none; box-shadow: none; float: right; margin-bottom: 12px;' width='150' />
 
 - You will be able to reach your installation at [http://hassio.local:8123][local].