diff --git a/BatteryIcon.bmp b/BatteryIcon.bmp
new file mode 100644
index 00000000..8a00f31a
Binary files /dev/null and b/BatteryIcon.bmp differ
diff --git a/workspace/ts100/inc/Font.h b/workspace/ts100/inc/Font.h
index f95590ab..fb36ed03 100644
--- a/workspace/ts100/inc/Font.h
+++ b/workspace/ts100/inc/Font.h
@@ -9,7 +9,9 @@
 
 #ifndef FONT_H_
 #define FONT_H_
-
+/*
+ * Remember screen is LSB at the top, MSB at the bottom of the strip!
+ */
 #define FONT_WIDTH 12 /*How many pixels wide the font is*/
 const uint8_t FONT[]={
 		0x00,0xF0,0xFC,0x0E,0x82,0xC2,0x62,0x1E,0xFC,0xF0,0x00,0x00,
@@ -95,8 +97,42 @@ const uint8_t FONT[]={
 
 		0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 		0x00,0x00,0x00,0x00,0x0F,0x0F,0x0F,0x0F,0x00,0x00,0x00,0x00,/*.*/
-};
 
+};
+const uint8_t extendedFont[] = {
+		0x00,0x00,0xF8,0x08,0x0E,0x02,0x02,0x0E,0x08,0xF8,0x00,0x00,
+		0x00,0x00,0x7F,0x40,0x40,0x40,0x40,0x40,0x40,0x7F,0x00,0x00,/*Battery Empty*/
+
+		0x00,0x00,0xF8,0x08,0x0E,0x02,0x02,0x0E,0x08,0xF8,0x00,0x00,
+		0x00,0x00,0x7F,0x60,0x60,0x60,0x60,0x60,0x60,0x7F,0x00,0x00,/*Battery 1*/
+
+		0x00,0x00,0xF8,0x08,0x0E,0x02,0x02,0x0E,0x08,0xF8,0x00,0x00,
+		0x00,0x00,0x7F,0x70,0x70,0x70,0x70,0x70,0x70,0x7F,0x00,0x00,/*Battery 2*/
+
+		0x00,0x00,0xF8,0x08,0x0E,0x02,0x02,0x0E,0x08,0xF8,0x00,0x00,
+		0x00,0x00,0x7F,0x78,0x78,0x78,0x78,0x78,0x78,0x7F,0x00,0x00,/*Battery 3*/
+
+		0x00,0x00,0xF8,0x08,0x0E,0x02,0x02,0x0E,0x08,0xF8,0x00,0x00,
+		0x00,0x00,0x7F,0x7C,0x7C,0x7C,0x7C,0x7C,0x7C,0x7F,0x00,0x00,/*Battery 4*/
+
+		0x00,0x00,0xF8,0x08,0x0E,0x02,0x02,0x0E,0x08,0xF8,0x00,0x00,
+		0x00,0x00,0x7F,0x7E,0x7E,0x7E,0x7E,0x7E,0x7E,0x7F,0x00,0x00,/*Battery 5*/
+
+		0x00,0x00,0xF8,0x08,0x0E,0x02,0x02,0x0E,0x08,0xF8,0x00,0x00,
+		0x00,0x00,0x7F,0x7F,0x7F,0x7F,0x7F,0x7F,0x7F,0x7F,0x00,0x00,/*Battery 6*/
+
+		0x00,0x00,0xF8,0x88,0x8E,0x82,0x82,0x8E,0x88,0xF8,0x00,0x00,
+		0x00,0x00,0x7F,0x7F,0x7F,0x7F,0x7F,0x7F,0x7F,0x7F,0x00,0x00,/*Battery 7*/
+
+		0x00,0x00,0xF8,0xC8,0xCE,0xC2,0xC2,0xCE,0xC8,0xF8,0x00,0x00,
+		0x00,0x00,0x7F,0x7F,0x7F,0x7F,0x7F,0x7F,0x7F,0x7F,0x00,0x00,/*Battery 8*/
+
+		0x00,0x00,0xF8,0xE8,0xEE,0xE2,0xE2,0xEE,0xE8,0xF8,0x00,0x00,
+		0x00,0x00,0x7F,0x7F,0x7F,0x7F,0x7F,0x7F,0x7F,0x7F,0x00,0x00,/*Battery 9*/
+
+		0x00,0x00,0xF8,0xF8,0xFE,0xF2,0xF2,0xFE,0xF8,0xF8,0x00,0x00,
+		0x00,0x00,0x7F,0x7F,0x7F,0x7F,0x7F,0x7F,0x7F,0x7F,0x00,0x00,/*Battery 10*/
+};
 const uint8_t Iron_Base[] ={
 		0x00,0x20,0x60,0x60,0x60,0x60,0x60,0x60,0x90,0x90,0x90,0x90,
 		0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,
diff --git a/workspace/ts100/inc/Oled.h b/workspace/ts100/inc/Oled.h
index 8b896d1e..664e933b 100644
--- a/workspace/ts100/inc/Oled.h
+++ b/workspace/ts100/inc/Oled.h
@@ -14,16 +14,17 @@
 void Oled_DisplayOn(void);
 void Oled_DisplayOff(void);
 
-u8* Oled_DrawArea(u8 x0, u8 y0, u8 wide, u8 high, u8* ptr);
+const u8* Oled_DrawArea(u8 x0, u8 y0, u8 wide, u8 high,const u8* ptr);
 void Set_ShowPos(u8 x, u8 y);
 void Oled_DisplayFlip();
 void GPIO_Init_OLED(void);
 void Init_Oled(uint8_t leftHanded);
-u8* Data_Command(u8 len, u8* ptr);
+const u8* Data_Command(u8 len,const u8* ptr);
 void Clear_Screen(void);//Clear the screen
 /*Functions for writing to the screen*/
 void OLED_DrawString(const char* string, const uint8_t length);
 void OLED_DrawChar(char c, uint8_t x);
+void OLED_DrawExtendedChar(uint8_t id, uint8_t x);
 void OLED_DrawTwoNumber(uint8_t in, uint8_t x);
 void OLED_BlankSlot(uint8_t xStart,uint8_t width);
 void OLED_DrawThreeNumber(uint16_t in, uint8_t x);
diff --git a/workspace/ts100/src/Modes.c b/workspace/ts100/src/Modes.c
index c673d3c9..d3311421 100644
--- a/workspace/ts100/src/Modes.c
+++ b/workspace/ts100/src/Modes.c
@@ -6,7 +6,7 @@
  */
 #include "Modes.h"
 const char *SettingsLongNames[] = {
-		"      Power source. Sets cutoff voltage. <DC 10V> <S 3.5V per cell>",
+		"      Power source. Sets cutoff voltage. <DC 10V> <S 3.3V per cell>",
 		"      Sleep Temperature <C>", "      Sleep Timeout <Minutes>",
 		"      Shutdown Timeout <Minutes>",
 		"      Motion Sensitivity <0.Off 1.least sensitive 9.most sensitive>",
@@ -157,7 +157,7 @@ void ProcessUI() {
 				case SLEEP_TIME:
 					++systemSettings.SleepTime;		//Go up 1 minute at a time
 					if (systemSettings.SleepTime > 30)
-						systemSettings.SleepTime = 1;//cant set time over 30 mins
+						systemSettings.SleepTime = 1;//can't set time over 30 mins
 					//Remember that ^ is the time of no movement
 					break;
 				case SHUTDOWN_TIME:
@@ -411,12 +411,27 @@ void DrawUI() {
 		lastOLEDDrawTime = millis();
 		//Now draw symbols
 		if (StatusFlags == 8)
-			OLED_DrawChar('B', 3);
-		else
-			OLED_DrawChar(' ', 3);
-
+			OLED_DrawChar('B', 4);
+		else {
+			OLED_DrawChar(' ', 4);
+		}
+		//Draw in battery symbol if desired
+		if (systemSettings.cutoutSetting) {
+			//User is on a lithium battery
+			//we need to calculate which of the 10 levels they are on
+			uint8_t cellCount = systemSettings.cutoutSetting + 2;
+			uint16_t cellV = readDCVoltage(systemSettings.voltageDiv)
+					/ cellCount;
+			//Should give us approx cell voltage X10
+			//Range is 42 -> 33 = 9 steps therefore we will use battery 1-10
+			if (cellV < 33)
+				cellV = 33;
+			cellV -= 33;			//Should leave us a number of 0-9
+			OLED_DrawExtendedChar(cellV + 1, 5);
+		} else {
+			OLED_DrawChar(' ', 5);
+		}
 		OLED_BlankSlot(6 * 12 + 16, 24 - 16);//blank out the tail after the arrows
-		OLED_BlankSlot(4 * 12 + 16, 24 - 16);//blank out the tail after the temp
 		if (getIronTimer() == 0
 				&& (temp / 10) > (systemSettings.SolderingTemp / 10)) {
 			//Cooling
@@ -430,9 +445,9 @@ void DrawUI() {
 			}
 		}
 		if (systemSettings.displayTempInF) {
-			OLED_DrawSymbol(4, 1);
+			OLED_DrawChar('F', 3);
 		} else {
-			OLED_DrawSymbol(4, 0);
+			OLED_DrawChar('C', 3);
 		}
 
 	}
diff --git a/workspace/ts100/src/Oled.c b/workspace/ts100/src/Oled.c
index c584a0d5..abbb7c01 100644
--- a/workspace/ts100/src/Oled.c
+++ b/workspace/ts100/src/Oled.c
@@ -77,7 +77,7 @@ void Oled_DisplayFlip() {
  Input: number of bytes to write, array to write
  Output:
  */
-u8* Data_Command(u8 length, u8* data) {
+const u8* Data_Command(u8 length,const u8* data) {
 	int i;
 	u8 tx_data[129];
 	//here are are inserting the data write command at the beginning
@@ -107,7 +107,7 @@ void Set_ShowPos(u8 x, u8 y) {
  Inputs:(x,y) start point, (width,height) of enclosing rect, pointer to data
  Output: pointer to the last byte written out
  *******************************************************************************/
-u8* Oled_DrawArea(u8 x0, u8 y0, u8 wide, u8 high, u8* ptr) {
+const u8* Oled_DrawArea(u8 x0, u8 y0, u8 wide, u8 high,const u8* ptr) {
 	u8 m, n, y;
 
 	n = y0 + high;
@@ -174,7 +174,7 @@ void Clear_Screen(void) {
 /*
  * Draws a string onto the screen starting at the left
  */
-void OLED_DrawString(const char* string,const  uint8_t length) {
+void OLED_DrawString(const char* string, const uint8_t length) {
 	for (uint8_t i = 0; i < length; i++) {
 		OLED_DrawChar(string[i], i);
 	}
@@ -209,7 +209,13 @@ void OLED_DrawChar(char c, uint8_t x) {
 
 	Oled_DrawArea(x, 0, FONT_WIDTH, 16, (u8*) ptr);
 }
+void OLED_DrawExtendedChar(uint8_t id, uint8_t x) {
+	u8* ptr = (u8*) extendedFont;
+	ptr += (id) * (FONT_WIDTH * 2);
+	x *= FONT_WIDTH; //convert to a x coordinate
 
+	Oled_DrawArea(x, 0, FONT_WIDTH, 16, (u8*) ptr);
+}
 void OLED_BlankSlot(uint8_t xStart, uint8_t width) {
 	u8* ptr = (u8*) FONT;
 	ptr += (36) * (FONT_WIDTH * 2);
diff --git a/workspace/ts100/src/Settings.c b/workspace/ts100/src/Settings.c
index 38e7b008..d08bf121 100644
--- a/workspace/ts100/src/Settings.c
+++ b/workspace/ts100/src/Settings.c
@@ -50,7 +50,7 @@ uint8_t lookupVoltageLevel(uint8_t level) {
 	if (level == 0)
 		return 100;	//10V since iron does not function below this
 	else
-		return (level * 35) + (35 * 2);
+		return (level * 33) + (33 * 2);
 }
 void resetSettings() {