diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 7f0d8cc..777ac24 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -5,6 +5,9 @@ on:
     tags:
       - 'v*'
 
+env:
+  FURBLE_VERSION: ${{ github.ref_name }}+${{ github.run_attempt }}
+
 jobs:
   build:
 
diff --git a/README.md b/README.md
index 72007ad..4bfafa6 100644
--- a/README.md
+++ b/README.md
@@ -101,13 +101,11 @@ The M5StickC Plus sells for US$19.95.
 
 The project is built with [PlatformIO](https://platformio.org) and depends on
 the following libraries:
-- [Battery Sense](https://github.com/rlogiacco/BatterySense)
-  - only the voltage to capacity function is used
 - [M5ez](https://github.com/M5ez/M5ez)
   - severely butchered version to work on the M5StickC
-- [M5StickC](https://github.com/m5stack/M5StickC)
-- [M5StickC Plus](https://github.com/m5stack/M5StickC-Plus)
+- [M5Unified](https://github.com/m5stack/M5Unified)
 - [NimBLE-Arduino](https://github.com/h2zero/NimBLE-Arduino)
+- [TinyGPSPlus](https://github.com/mikalhart/TinyGPSPlus)
 
 ## Installation
 
diff --git a/lib/M5ez/src/M5ez.cpp b/lib/M5ez/src/M5ez.cpp
index 2ab6695..1b904d4 100644
--- a/lib/M5ez/src/M5ez.cpp
+++ b/lib/M5ez/src/M5ez.cpp
@@ -13,7 +13,6 @@ extern "C" {
 #endif                         // M5EZ_WIFI
 
 #ifdef M5EZ_BATTERY
-#include <Battery.h>
 #endif
 
 #ifdef M5EZ_CLOCK
@@ -2120,17 +2119,9 @@ uint16_t ezBattery::loop() {
 // Transform the M5Stack built in battery level into an internal format.
 //  From [100, 75, 50, 25, 0] to [4, 3, 2, 1, 0]
 uint8_t ezBattery::getTransformedBatteryLevel() {
-  uint8_t level = sigmoidal(M5.Power.getBatteryVoltage(), 3000, 4200);
-  if (level > 80)
-    return 4;
-  else if (level > 60)
-    return 3;
-  else if (level > 40)
-    return 2;
-  else if (level > 20)
-    return 1;
-  else
-    return 0;
+  int32_t level = M5.Power.getBatteryLevel();
+
+  return map(level, 0, 100, 0, 4);
 }
 
 // Return the theme based battery bar color according to its level
diff --git a/platformio.ini b/platformio.ini
index 3c36c39..805aeb2 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -1,37 +1,28 @@
 [furble]
 build_flags = -D FURBLE_VERSION=\"${sysenv.FURBLE_VERSION}\"
-lib_deps =
-  M5Unified@0.1.12
-  Battery Sense
-  NimBLE-Arduino@1.4.1
-  mikalhart/TinyGPSPlus@1.0.3
 
 [env]
 platform = espressif32
 board_build.f_cpu = 80000000L
 upload_protocol = esptool
 framework = arduino
+lib_deps =
+  M5Unified@0.1.12
+  NimBLE-Arduino@1.4.1
+  mikalhart/TinyGPSPlus@1.0.3
 
 [env:m5stick-c]
 board = m5stick-c
 build_flags = ${furble.build_flags} -D M5STICKC
-lib_deps =
-  ${furble.lib_deps}
 
 [env:m5stick-c-plus]
 board = m5stick-c
 build_flags = ${furble.build_flags} -D M5STICKC_PLUS
-lib_deps =
-  ${furble.lib_deps}
 
 [env:m5stack-core]
 board = m5stack-core-esp32
 build_flags = ${furble.build_flags} -D M5STACK_CORE2
-lib_deps =
-  ${furble.lib_deps}
 
 [env:m5stack-core2]
 board = m5stack-core2
 build_flags = ${furble.build_flags} -D M5STACK_CORE2
-lib_deps =
-  ${furble.lib_deps}