diff --git a/power_setup/readme.MD b/power_setup/readme.MD
index 29133a7..17b1418 100644
--- a/power_setup/readme.MD
+++ b/power_setup/readme.MD
@@ -3,7 +3,7 @@
 
 ## Components
 * 4* 120W Solar Panels (ground mounted in garden)
-* Victron SmartSolar 100|30 MPPT Charger
+* Victron SmartSolar 100|20 MPPT Charger
 * Leoch Lead Acid 12v 100Ah Battery
 
 * 8 port Ethernet Switch