diff --git a/src/lib.rs b/src/lib.rs
index 8640dd7..5065ef1 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -23,17 +23,20 @@ pub async fn find_infinitime(adapter: &Adapter) -> Option<Peripheral> {
     return None;
 }
 
-async fn get_property_value(infinitime: &Peripheral, property: Uuid) -> String {
+async fn get_property_value(infinitime: &Peripheral, property: Uuid) -> Vec<u8> {
     let chars = infinitime.characteristics();
     let cmd_char = chars.iter().find(|c| c.uuid == property).unwrap();
     let result = infinitime.read(cmd_char).await.unwrap();
 
-    return String::from_utf8(result).expect("Invalid UTF-8");
+    return result;
 }
 
 pub async fn get_firmware_version(infinitime: &Peripheral) -> String {
-    return get_property_value(infinitime, FIRMWARE_VERSION_UUID).await;
+    let data = get_property_value(infinitime, FIRMWARE_VERSION_UUID).await;
+    return String::from_utf8(data).expect("Found invalid UTF-8");
 }
 pub async fn get_battery_level(infinitime: &Peripheral) -> String {
-    return get_property_value(infinitime, BATTERY_LEVEL_UUID).await;
+    let data = get_property_value(infinitime, BATTERY_LEVEL_UUID).await;
+    let percent = data[0];
+    return percent.to_string();
 }