diff --git a/Source/Apps/Build.cmd b/Source/Apps/Build.cmd
index 03acd2bf..266f838f 100644
--- a/Source/Apps/Build.cmd
+++ b/Source/Apps/Build.cmd
@@ -21,6 +21,7 @@ call :asm Mode || goto :eof
 call :asm RTC || goto :eof
 call :asm Timer || goto :eof
 call :asm180 IntTest || goto :eof
+call :asm Reboot || goto :eof
 
 zx Z80ASM -SYSGEN/F
 
diff --git a/Source/Apps/reboot.asm b/Source/Apps/reboot.asm
new file mode 100644
index 00000000..4ee08390
--- /dev/null
+++ b/Source/Apps/reboot.asm
@@ -0,0 +1,18 @@
+;===============================================================================
+;
+; REBOOT - Execute HBIOS reset to restart to boot loader.
+;
+;===============================================================================
+;
+BID_BOOT	.EQU	$00
+HB_BNKCALL	.EQU	$FFF9
+
+			.org	$100
+		
+			LD		A,BID_BOOT		; BOOT BANK
+			LD		HL,0			; ADDRESS ZERO
+			CALL	HB_BNKCALL		; DOES NOT RETURN	
+			HALT
+			
+			.end
+			
\ No newline at end of file
diff --git a/Source/HBIOS/Build.ps1 b/Source/HBIOS/Build.ps1
index 149b05d0..7fd48d9d 100644
--- a/Source/HBIOS/Build.ps1
+++ b/Source/HBIOS/Build.ps1
@@ -104,7 +104,7 @@ $ImgFile = "${OutDir}/${RomName}.img"	# Final name of IMG image (memory loadable
 if ($Platform -eq "UNA") {$CBiosFile = '../CBIOS/cbios_una.bin'} else {$CBiosFile = '../CBIOS/cbios_wbw.bin'}
 
 # List of RomWBW proprietary apps to imbed in ROM disk.
-$RomApps = "assign","fdu","format","mode","osldr","rtc","survey","syscopy","sysgen","talk","timer","xm","inttest"
+$RomApps = "assign","fdu","format","mode","osldr","rtc","survey","syscopy","sysgen","talk","timer","xm","inttest","reboot"
 
 ""
 "Building ${RomName}: ${ROMSize}KB ROM configuration ${Config} for Z${CPUType}..."
diff --git a/Source/HBIOS/cfg_sbc.asm b/Source/HBIOS/cfg_sbc.asm
index 8e9813ea..b78d09b4 100644
--- a/Source/HBIOS/cfg_sbc.asm
+++ b/Source/HBIOS/cfg_sbc.asm
@@ -19,6 +19,7 @@ HTIMENABLE	.EQU	FALSE		; TRUE FOR SIMH TIMER SUPPORT
 SIMRTCENABLE	.EQU	FALSE		; SIMH CLOCK DRIVER
 DSRTCENABLE	.EQU	TRUE		; DS-1302 CLOCK DRIVER
 DSRTCMODE	.EQU	DSRTCMODE_STD	; DSRTCMODE_STD, DSRTCMODE_MFPIC
+DSRTCCHG	.EQU	FALSE		; DS-1302 CONFIGURE CHARGE ON (TRUE) OR OFF (FALSE)
 ;
 ASCIENABLE	.EQU	FALSE		; TRUE FOR Z180 ASCI SUPPORT
 UARTENABLE	.EQU	TRUE		; TRUE FOR UART SUPPORT (ALMOST ALWAYS WANT THIS TO BE TRUE)
diff --git a/Source/HBIOS/dsrtc.asm b/Source/HBIOS/dsrtc.asm
index 14d17093..c4aaff9c 100644
--- a/Source/HBIOS/dsrtc.asm
+++ b/Source/HBIOS/dsrtc.asm
@@ -122,6 +122,27 @@ DSRTC_INIT1:
 	CALL	DSRTC_CLK2TIM
 	LD	HL,DSRTC_TIMBUF
 	CALL	PRTDT
+	
+#IF	DSRTCCHG				; FORCE_RTC_CHARGE_ENABLE
+	LD		C,$8E			; ACCESS WRITE PROT REG
+	CALL	DSRTC_CMD		; 
+	LD		A,$00			; WRITE PROTECT OFF
+	CALL	DSRTC_PUT		; 	
+	CALL	DSRTC_END		; FINISH CMD
+	
+	LD		C,$90			; ACCESS CHARGE REGISTER
+	CALL	DSRTC_CMD		; 
+	LD		A,$A5			; STD CHARGE VALUES
+	CALL	DSRTC_PUT		; 
+	CALL	DSRTC_END		; FINISH REG WRITE
+	
+	LD		C,$8E			; ACCESS WRITE PROT REG
+	CALL	DSRTC_CMD		; 
+	LD		A,$80			; WRITE PROTECT ON
+	CALL	DSRTC_PUT		; 	
+	CALL	DSRTC_END		; FINISH CMD
+#ENDIF
+
 	PRTS(" CHARGE=$")
 	CALL DSRTC_TSTCHG
 	JR		NZ,NOCHG1