diff --git a/Hardware_developement/1-Power_supply/Readme.txt b/Hardware_developement/1-Power_supply/Readme.txt
index 3f9964c..8e5e568 100644
--- a/Hardware_developement/1-Power_supply/Readme.txt
+++ b/Hardware_developement/1-Power_supply/Readme.txt
@@ -1 +1 @@
-Currently, power is supplied from one or two Li-Ion 3.7V batteries in series. 
\ No newline at end of file
+Currently, power is supplied from one or two Li-Ion 3.7V batteries in series, or the equivalent DC power supply. 
\ No newline at end of file