diff --git a/README.md b/README.md
index 21abe41..d9751ef 100644
--- a/README.md
+++ b/README.md
@@ -6,10 +6,11 @@ I'm building a radio mesh network, kinda like CyberPony to democratize WiFi and
 
 ## Relay
 Relays just push the signal further, they sit on your roof or in other high places.  
-**Cost:** $~31
+**Cost:** $~40
 ### Parts
 - Raspberry Pi Pico H ($~9) | [Buy](https://core-electronics.com.au/raspberry-pi-pico-h-with-headers.html)
-- SX1262 LoRa Node Module for Raspberry Pi Pico (comes with battery and antenna) ($~22) | [Buy](https://piaustralia.com.au/products/sx1262-lora-node-module-for-raspberry-pi-pico-lorawan-915mhz)
+- SX1262 LoRa Node Module for Raspberry Pi Pico (comes with antenna) ($~22) | [Buy](https://piaustralia.com.au/products/sx1262-lora-node-module-for-raspberry-pi-pico-lorawan-915mhz)
+- Solar panel and battery ($~10)
 - Any way to program and flash the Pico, whether thats USB or another way.
 
 ## Connector